Abstract
The present invention relates to an apparatus and method for securing a box cover to a watthour meter socket box. In certain embodiments, the apparatus has a clamping member that fits over a wall of a meter box, and a lock housing that locks to the clamping member after a box cover has been installed, thereby securing the cover to the box in a manner such that the box cover cannot be installed unless the clamping member has been installed correctly. In various other embodiments, the clamping member consists of a clamp disposed between a clamp actuating member and a fastening shelf. In various other embodiments, the clamp includes a stopping member for indicating when the clamp actuating member is actuated into a fully secured position. Other embodiments relate to a locking bracket and a lock housing wherein the locking bracket generally comprises a clamping member and a fastening lever that attaches to a wall of a meter box base. The lock housing generally comprises a unitary member with a perpendicular flange. The meter box lid is secured to the meter box base when the locking bracket is secured to the side wall (or another wall) and used in combination with the lock housing and a locking shaft.
Claims
1. An apparatus for securing a box cover to a meter box, said meter box being defined by a plurality of side walls, said apparatus comprising: a clamping member attachable to one of said plurality of side walls; a fastening lever; and a pivotal connection between said clamping member and said fastening lever, said pivotal connection comprising an axis of rotation extending through said pivotal connection, said axis of rotation extending into at least one of said box cover or said one of said plurality of side walls when said box cover is secured to said meter box.
2. A method for securing a box cover to a meter box, said method comprising: disposing a clamping member over a wall of said meter box, the wall comprising an upper portion and a lower portion, wherein said clamping member comprises a clamp, a clamp actuating member, and a fastening shelf having a first securing means, and wherein said clamping member is adapted to engage at least the upper portion or lower portion of the wall; disposing a lock housing in functional cooperation with said clamping member, wherein said lock housing comprises a second securing means; and securing said clamping member using said lock housing.
3. The method of claim 2, further comprising disposing a fastening shelf so that said first securing means comprises a body portion of said fastening shelf through which an aperture has been formed.
4. The method of claim 3, further comprising disposing a lock housing so that said second securing means comprises said lock housing through which an aperture has been formed.
5. The method of claim 4, further comprising disposing a fastening shelf and said lock housing so that said first securing means and said second securing means comprise approximately cylindrical apertures.
6. The method of claim 2, further comprising disposing a plunger type fastener.
7. The method of claim 6, further comprising disposing a plunger type fastener, and then securing said plunger type fastener by means of a retaining member.
8. The method of claim 2, further comprising rotating said clamp actuating member about a rotational axis established by disposition of an engagement member disposed on said body portion of said clamping member.
9. The method of claim 8, further comprising: delivering an input force to one end of said clamp actuating member so that said clamp actuating member rotates about a rotational axis established by disposition of said engagement member on said clamping member; and translating said input force into a mechanical clamping force that is greater than the input force.
10. The method of claim 2, further comprising disposing a clamp actuating member having a tactile feedback indicator to indicate when said clamp actuating member has been fully rotated into a secure position.
11. The method of claim 2, further comprising disposing said clamp between said clamp actuating member and said fastening shelf.
12. The method of claim 11, further comprising disposing a clamp having a stopping member, wherein said stopping member stops a rotational sweep of said clamp actuating member after said clamp actuating member is disposed in a fully secured position.
13. The method of claim 11, further comprising disposing a clamp imparting a spring force that holds said clamp actuating member in a fully secured position.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0103] Various other objects, features and attendant advantages of the present invention will become fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the several views, and wherein:
[0104] FIG. 1 is an exploded view of a known ringless meter socket box, including a watthour meter and a meter box lid.
[0105] FIG. 2 is an exploded view of a meter box security apparatus comprising a clamping member and a plunger type lock housing.
[0106] FIG. 3 shows a closed meter box with a box cover secured using a meter box security apparatus according to the present invention.
[0107] FIG. 4A shows a clamping member disposed over a sectional view of a wall portion of a meter box.
[0108] FIG. 4B is an isometric view of a clamping member according to the present invention.
[0109] FIG. 5A shows a clamping member disposed in a fully clamped and secured position.
[0110] FIG. 5B shows a clamping member, further comprising a stopping member.
[0111] FIG. 5C is a front view of a stopping member disposed on a clamping member.
[0112] FIG. 6A shows a clamp actuating member according to the present invention.
[0113] FIG. 6B is a close view of a latching mechanism suitable for use in connection with a clamp actuating member.
[0114] FIG. 7A is a plan view of a clamping member and a lock housing, assembled so as to secure a meter box cover to a meter box.
[0115] FIG. 7B is an isometric view of a clamping member.
[0116] FIG. 7C is an isometric view of a lock housing.
[0117] FIG. 8 is a perspective view of the present invention installed onto the watthour meter box in accord with one possible embodiment of the present invention.
[0118] FIG. 9 is a side-section view of the present invention installed on a meter box viewed from inside the box in accord with one possible embodiment of the present invention.
[0119] FIG. 9A is a side-section view of the present invention as shown in FIG. 9 which may or may not utilize biasing means and wherein if used, the biasing means may or may not replace, or be used in conjunction with, a flexural member in accord with another possible embodiment of the present invention.
[0120] FIG. 10 is a side view of the present invention installed on a meter box viewed from inside the box showing the various components of the locking apparatus.
[0121] FIG. 10A is a side-section view of the present invention as shown in FIG. 10 which may or may not utilize biasing means and wherein, if used, the biasing means may or may not replace, or be used in conjunction with, a flexural member in accord with another possible embodiment of the present invention.
[0122] FIG. 11 is a perspective view of the present invention viewed generally from below, showing the various components of the locking bracket.
[0123] FIG. 11A is a side-section view of the present invention as shown in FIG. 11 which may or may not utilize biasing means and wherein, if used, the biasing means may or may not replace, or be used in conjunction with, a flexural member in accord with another possible embodiment of the present invention.
[0124] FIG. 12 is a perspective-exploded view of the present invention showing the various components of the locking bracket.
[0125] FIG. 12A is a side-section view of the present invention as shown in FIG. 12 which may or may not utilize biasing means such as a compression member and wherein, if used, the biasing means may or may not replace, or be used in conjunction with, a flexural member in accord with another possible embodiment of the present invention.
[0126] FIG. 13 is a perspective view of the present invention, illustrating the installation of the entire apparatus onto the meter box base.
[0127] FIG. 13A is a side-section view of the present invention as shown in FIG. 13 which may or may not utilize biasing means such as a compression member and wherein, if used, the biasing means may or may not replace, or be used in conjunction with, a flexural member in accord with another possible embodiment of the present invention.
[0128] FIG. 14 is a perspective view of the present invention, viewed from below the meter box base front flange, illustrating the installation of the locking bracket onto the meter box base. Portions of the meter box base have been cut away.
[0129] FIG. 14A is a side-section view of the present invention as shown in FIG. 15 which may or may not utilize biasing means such as a compression member and wherein, if used, the biasing means may or may not replace, or be used in conjunction with, a flexural member in accord with another possible embodiment of the present invention.
[0130] FIG. 15 is a perspective view of the present invention, illustrating the locking apparatus position after installation, viewed from below. Portions of the meter box base and lid have been cut away.
[0131] FIG. 16 is a perspective view of the present invention illustrating the lock housing position after apparatus installation. Portions of the meter box base and lid have been cut away.
[0132] FIG. 17 is a perspective view of an alternate embodiment of the present invention showing the various components of the locking bracket in the closed position.
[0133] FIG. 18 is a perspective view of an alternate embodiment of the present invention showing the various components of the locking bracket in the closed position.
[0134] FIG. 19 is a perspective view of an alternate embodiment of the present invention showing the various components of the locking bracket in the open position.
[0135] FIG. 20 is a perspective view of another alternate embodiment of the present invention showing the various components of the locking bracket in the closed position.
[0136] While the present invention will be described in connection with presently preferred embodiments, it will be understood that it is not intended to limit the invention to those embodiments. On the contrary, it is intended to cover all alternatives, modifications, and equivalents included within the spirit of the invention and as defined in the appended claims.
DETAILED DESCRIPTION OF THE INVENTION
[0137] Referring now to FIG. 2, an exploded view of an example embodiment of the invention is shown, comprising a clamping member 70 disposed over a wall portion 60 of a meter box 10. In FIG. 2, clamping member 70 is shown placed over the sidewall 140 in a non-secured position prior to installation. In other embodiments of the invention, clamping member 70 is disposed over an opposite wall portion 62 of meter box 10. In further example embodiments, clamping member 70 is disposed over a top wall portion 68 of meter box 10. In further example embodiments, clamping member 70 is disposed over a bottom wall portion 64 of meter box 10. In still further example embodiments, clamping member 70 is disposed over a retaining lip 66 disposed on a bottom wall portion 64 of meter box 10.
[0138] During installation, clamping member 70 is fastened into place using a clamp actuating member, for example, a fastening lever 120, example embodiments of which are described below. Once clamping member 70 is secured, meter box cover 30 is installed such that clamp actuating member 120 and one end of clamping member 70 are disposed entirely inside an enclosed portion of closed meter box 10, while a fastening shelf 110 remains disposed outside the meter box. In an alternative embodiment, fastening shelf 110 fits inside a slot or other opening in lock housing 80, and the meter box 10 and box cover 30 are fastened together by a plunger type fastener 90 inserted through both an aperture 82 formed in a body portion of lock housing 80 and an aperture 130 formed in a body portion of fastening shelf 110.
[0139] As seen in FIG. 3, according to a further example embodiment, a fully installed meter box security apparatus comprises a meter box 10 having a box cover 30 installed over the head of watthour meter 20, and a lock housing 80 fastened to a fastening shelf. Plunger type fastener 90 is inserted into an aperture formed in a body portion of lock housing 80 and then through an aperture formed in a body portion of the fastening shelf, thereby securing the lock housing 80 to the clamping member. Lock housing arm 100 in turn holds a meter box cover 30 securely in place so that the meter cannot be tampered with.
[0140] Referring now to FIG. 4A, an example embodiment of the invention is shown, comprising a clamping member 70 hung over a meter box wall portion 140. In a specific, non-limiting embodiment, clamping member 70 is a bracket, further comprising a fastening shelf 110 having an aperture 130 disposed at one end and a clamp actuating member 150 at the other end. A plurality of engagement members 180, 210 is disposed on a body portion of the clamping member 70. The particular location of and uses for the plurality of engagement members 180, 210 will vary according to the requirements of the operational environment.
[0141] For example, in certain embodiments, engagement member 210 further comprises a clamp 190 having a plurality of engagement surfaces 200, 215. In this particular embodiment, when clamp actuating member 150 is actuated toward a locked position, upper wall portion 140 is securely clamped between engagement surface 215 and clamping member 70 to achieve a reliable and secure installation. In other embodiments, engagement surface 200 also clamps beneath wall portion 140 to ensure a secure fitting. In a further embodiment, engagement surface 215 does not clamp to upper wall portion 140; in this configuration, only engagement surface 200 is secured beneath a portion of wall 140. An isometric view of some of the aforementioned features is shown in greater detail in FIG. 4B.
[0142] Referring again to FIG. 4A, when clamp actuating member 150 is rotated about actuable member 180, arced surface 170 contacts clamp 190, and through a cam-type action, sandwiches one (or both) of the clamp engagement surfaces 200, 215 between clamp actuating member 150 and wall portion 140, thereby creating a constant engagement surface along the interface between wall portion 140 and engagement surface 200. In another embodiment, the force applied to actuate clamp actuating member 150 into a fully engaged or secured position is translated and mechanically multiplied by the clamping force imparted by one (or both) of engagement surfaces 200, 215 onto wall portion 140. In certain alternative embodiments, engagement surface 200 includes one or more protruding tabs that grip wall portion 140 with greater force per unit area than would be realized by a constant engagement surface having a greater area.
[0143] Referring now to the example embodiment of FIG. 5A, the position of clamp actuating member 150 is shown after it has been fully rotated into a secured position. In certain embodiments, clamp actuating member 150 is rotated until it securely fastens into a notched receiving member 160 cut out of arced surface member 170, the notched receiving member 160 providing a tactile indicator of when the clamp actuating member 150 has reached its fully secured position, and when clamping member 70 is securely fastened to a wall portion 140.
[0144] According to one embodiment of the invention, the specific location of notched receiving member 160 permits a terminus end of clamp actuating member 150, when fully rotated and secured, to be contained within an enclosed portion of the meter box even after the box cover has been fully installed. On the other hand, if clamp actuating member 150 is not fully rotated and secured into place, a terminus end of clamp actuating member 150 will protrude from the confines of the meter box, and will therefore not permit final installation of the box cover. In alternative embodiments, notched receiving member 160 is disposed so that the clamp actuating member 150, when fully rotated and secured in place, touches the inside surface of a fully installed box door, but does not interfere with its installation.
[0145] In other example embodiments, for example, as seen in FIG. 5B, a stopping member 182 is disposed along the bottom of clamp 190, upon which a bottom surface 162 of clamp actuating member 150 rests when the clamp actuating member 150 is in a fully secured position. In another example embodiment, stopping member 182 is disposed along the bottom of clamp 190 so as to prevent the fastening lever 150 from camming over a center of rotation. FIG. 5C shows a side view of another example embodiment of clamp 190, wherein stopping member 182 is stamped into or otherwise formed structurally integral with clamp 190. In other example embodiments, a stopping member 182 is affixed to the clamp 190 prior to installation.
[0146] In certain embodiments, clamp actuating member 150 is held in a fully secured position by both a frictional force imposed on notched receiving member 160 when the clamp actuating member 150 is fully turned, and by a spring force inherent in the interaction between the leverage on wall portion 140 imparted by clamp actuating member 150 and clamp 190. In other embodiments, clamp actuating member 150 is held in a fully secured position by means of a separate securing means, for example, by means of a latch or a spring (not shown) disposed between the clamp and the clamp actuating member.
[0147] Turning now to FIG. 6A, a further embodiment of the invention is shown, wherein a clamp actuating member 400 is attached to a clamping member 410, so that the clamp actuating member 400 rotates about a rotational axis established by the position of engagement means 420. A channel 430 is formed on at least one side of clamp actuating member 400, through which guide member 440 travels during actuation of clamp actuation member 400. During installation, clamp actuation member 400 is rotated about engagement member 420 so that bracket 410 will fit over a box wall 460. To secure the base to the wall, clamp actuating member 400 is then rotated in the other direction, back around engagement member 420, toward a secured position, so that surface engagement member 455 sandwiches wall portion 460 between bracket 410 and surface 455.
[0148] Referring now to FIG. 6B, a cut away view of clamp actuating member 400 is provided, wherein a channel 430 and a guide member 440 are shown as non-limiting aspects of the present invention. Clamp actuating member 400 is securely fastened in position after member rotation by means of a stopping shelf 470, upon which rests guide member 440, and also by the inherent spring forces present in the system after clamp actuating member 400 has been fully actuated into a secured position. According to one embodiment of the invention, the desired length and design of channel 430 and stopping shelf 470 is such that the clamp actuating member 400, when secured, is fully contained within an interior space present within the meter box, and does not interfere with installation of a box cover. In another example embodiment, the length and design of channel 430 and stopping shelf 470 are such that the clamp actuating member 400, when fully secured, touches an interior surface of a fully installed box cover, but, again, does not interfere with the cover's installation.
[0149] Referring now to FIG. 7A, another exemplary embodiment of the invention is shown, wherein the clamping member 500 is securely fastened to a wall portion 510, and box cover 520 is in a fully installed position. Lock housing 540 is affixed to meter box 530 by means of housing arm 545, and by the interaction between plunger type fastener 550 and fastening shelf 560, which has an aperture through which plunger type fastener 550 passes. In other embodiments, plunger type fastener 550 is held in place after installation by means of a retaining member 555. In various other embodiments, lock housing 540 and plunger type fastener 550 are replaced by a single unitary structure, which locks onto fastening shelf 560, thereby securing box cover 520 to meter box 530. In still other embodiments, housing arm 545 fits into a slot (not shown) formed in the box cover 520.
[0150] FIGS. 7B and 7C are isometric views of further embodiments of the invention, wherein clamping member 500 and lock housing 540 are shown prior to installation. Fastening shelf 560 fits into a receiving shelf 570 such that aperture 547 lines up with aperture 565. To lock the two pieces together, a plunger type fastener is aligned with aperture 547, and then a body portion of the fastener is pushed through each of apertures 547, 565 and 580. Referring back to FIG. 7A, in some example embodiments of the invention, plunger type fastener 550 is secured in place inside the lock housing 540 by means of one or more retaining members 555. In still other embodiments, the plunger type fastener 550 is formed structurally integral with the lock housing 540.
[0151] In another example embodiment illustrated in FIG. 8, there is shown a ringless type meter box 627 that includes a box cover 620, and a box base 619. Formed around an opening in a central portion of meter box cover 620 is a flange 629. A complementary flange is disposed on meter 628 such that, when meter box cover 620 is installed over and around the head of meter 628, the meter complementary flange is encased by meter box cover flange 629, so that the meter cannot be easily removed from the electrical socket unless the cover 620 is first removed from the meter box base 619.
[0152] The meter box cover 620 is typically secured in place by means of a small latch assembly, which functions in structural cooperation with a complementary latch-receiving member disposed on the meter box base 619. The meter box cover 620 is used to secure the meter 628 to the electrical socket (not shown), so that completion of an electrical circuit is ensured, and the meter is reliably prevented from falling out of the meter box socket. The meter box cover 620 also prevents unauthorized persons from tampering with the meter 628. As shown in FIGS. 9 and 14, meter box base 619 comprises wall 623. Wall 623 comprises front flange 621 which extends inwardly from wall 623.
[0153] Referring now to FIGS. 8, 9, 9A, 10, and 10A, there is shown watthour meter box 627 wherein lock housing 614 may be utilized for securing meter box cover 620 to meter box base 619. The lock housing 614 is generally comprised of a unitary member incorporating a generally perpendicular flange 615 and multiple apertures or openings which may be interconnected such as 617, 622. Opening 617 may extend into lock housing perpendicular to perpendicular flange 615 and extend through opening or aperture 622, which may, if desired, be generally transverse to opening 617. Aperture 622 preferably opens onto an interior side of lock housing 614 and receives fastening shelf 604 of clamping member 602. As shown in FIGS. 9 and 9A, lock housing 614 may be used in conjunction with clamping member 602 such that cover 620 is held in place between flange 610 of clamping member 602 and perpendicular flange 615 of lock housing 614.
[0154] The clamping member 602 is generally comprised of multiple flanges 606, 610, 605 with one of the flanges 606 containing a preferably circular aperture 624 and a fastening shelf 604 that also contains a preferably circular aperture 607. Additional flanges may be added or fewer flanges may be used to accomplish the function as described henceforth.
[0155] A locking bracket 601 as shown enlarged in FIGS. 11, 11A, 12, 12A, 13, and 13A may generally comprise clamping member 602 and a fastening lever 603. The fastening lever 603 is generally comprised of multiple flanges 608, 609, 611 with one of the flanges 611 containing a generally circular aperture 625. Additional flanges may be added or fewer flanges may be used to accomplish the function as described henceforth.
[0156] As shown in the exploded view of the embodiment of FIG. 12, the fastening lever 603, flexural member 613, and clamping member 602 may be joined through the corresponding apertures 625, 624 with a permanent type fastener 612, which may be a rivet or other type of fastener which allows rotational motion between fastening lever 603, and clamping member 602. Fastener 612 is preferably permanent (but may also be non-permanent and easily removable). Flexural member 613 is partially compressed between the flanges 606 and 611 of clamping member 602 and fastening lever 603. The flexural member is a compressible member which applies a biasing force that biases clamping member 602 and fastening lever 603 preferably away from each other or to separate.
[0157] In the embodiment of FIG. 12A, a compression member 630 is adapted to be received by a flange 608 disposed on fastening lever 603. Compression member 630 may be attached to flange 608 by various means, one of which is shown and may comprise a cap. Flange 608 comprises edge 640 and stop surface 641 and is adapted to receive compression member 630 which comprises terminate edge 640A and stop surface 641A. It will be appreciated that edge 640 or terminate edge 640A is a surface although preferably narrow in width and rotates and engages the wall 623 at the same time. Compression member 630 may be wholly or partially comprised of elastomeric material, plastic, or other compressible material. The compressible material may preferably also be resilient so as to permit repeated reuse. The compressible material is also preferably an electrical insulator which reduces any likelihood of contacting electricity which might possibly be present within meter box base 619. Compression member 630 may be used in place of flexural member 613, or in conjunction with it, or with other compression members.
[0158] The directly subsequent discussion of assembly and operation of locking bracket 601 onto base 619 of watthour meter box 627 is made using the example of compression member 630, but resilient compression members such as flexural member 613, or other resilient compression members discussed hereinafter, or compression members such as lobe 734 (e.g., See FIG. 17) which may or may not be resilient, may be utilized to provide a secure fit of locking bracket (e.g., 601) onto base (e.g., 619). Compression members may be used with or without each other.
[0159] Referring to FIG. 13A, the locking bracket 601 is installed onto the base 619 of the watthour meter box 627 in the following manner: The fastening lever 603 is first rotated to an open position as shown with the flange 609 of the fastening lever 603 in a generally perpendicular position to the flange 610 of the clamping member 602. The locking bracket is moved toward the wall 623 of the meter box base 619, shown by movement arrow A, allowing the front flange 621 of the meter box base 619 to pass between the compression member 630 disposed on flange 608 of the fastening lever 603 and the fastening shelf 604 of the clamping member 602. The locking bracket 601 is then lowered onto the front flange 621 of the watthour meter box base 619 shown by movement arrow B until the front flange 621 of the meter box base 619 is in contact with the flange 610 of the clamping member 602.
[0160] Now referring to FIG. 14A, which shows a view on the other side of that shown in FIG. 13A, the installer bears on flange 609 of the fastening lever 603 causing the fastening lever 603 to rotate to a closed position, shown by movement arrow C. As shown in FIG. 10A, it will be seen that rotation of fastening lever 603 is around axis of rotation 644, which may be generally transverse, perpendicular, or orthogonal to wall 623. In this embodiment, axis of rotation 644 is orthogonal to wall 623, parallel to box cover 620, perpendicular to flange 605, and parallel to a plane of fastening shelf 604. In this embodiment, rotation of fastening lever 603 is in a plane parallel to a plane defined by what might be called the y-axis and the z-axis. In this case, the x-axis would be coincident with axis of rotation 644. Fastening lever 603 would extend into and out of the page in the z-axis. It will be understood that perpendicular or orthogonal is meant to include roughly or approximately perpendicular or orthogonal such that some variation within between about one to ten degrees may occur.
[0161] However, axis of rotation 644 could be angled away from wall 623 e.g., by providing that axis of rotation 644 is at an angle with respect to the z-axis and the x-axis while still perpendicular to the y-axis such as by bending flange 606 inwardly toward the interior of meter box base 619. In this case, axis of rotation 644 may still be perpendicular with respect to an axial direction x. In this case, when fastening lever 603 is rotated, then terminate end engagement surface 640A does not come into contact with wall 623 until near the end of rotation, which occurs when stop surface 641A engages the underside of front flange 621. Thus, in this embodiment, at least one axial direction of axis of rotation 644 is perpendicular to the y-axis and/or wall 623.
[0162] As the lever 603 is rotated, the compressible member 630, due to the limited space defined by a lower surface of front flange 621 and wall 623 of the watthour meter box base 619 and the terminate end 640A of the flange 608, will compress. The compression of compressible member 630 ensures a secure feel and a tighter fit of the locking bracket to the watthour meter box base. The installer continues to rotate the fastening lever 603 until stop surface 641A engages the inside surface of front flange 621. In a preferred embodiment, the flange 609 of the fastening lever 603 is in a generally parallel position to the flange 610 of the clamping member 602 when stop surface 641A engages the inside surface of front flange 621. The front flange 621 of the meter box base 619 is now trapped between the compression member 630 disposed on flange 608 of the fastening lever 603, and the flange 610 of the clamping member 602. As shown in FIG. 15, when meter box lid 620 is installed onto the meter box base 619, then the upper surface 643 of flange 609 may be prevented from movement and/or may be biasingly engaged with the inner surface of box lid 620. The compression member 630, in one example embodiment, provides a bias force between locking bracket 601 and wall 623 and front flange 621 and also frictional engagement which acts to hold the locking bracket 601 securely in place for subsequent attachment of lock housing 614.
[0163] Referring to FIG. 16, the meter box lid 620 is then installed onto the meter box base 619. The meter box lid 620 covers the flange 609 of the fastening lever 603 and the flange 610 of the clamping member 602.
[0164] Once the lid 620 is in place, the aperture 622 in the lock housing 614 is aligned with the fastening shelf 604 of the clamping member 602. The lock housing 614 is then slid onto the fastening shelf 604 of the clamping member 602, shown by movement arrow D in FIG. 13A. The locking shaft 616 is then inserted through the aperture 617 in the lock housing 614, shown by movement arrow E which is perpendicular to the fastening shelf 604. Shown in FIGS. 92, 9A, 11, and 11A, the locking balls 618 of the locking shaft 616 become trapped as they pass though the aperture 607 of the fastening shelf 604; this prevents the removal of the locking shaft 616 from the lock housing 614. Fastening shelf 604 may have tapering sides to permit easier insertion or guiding of fastening shelf 604 into aperture 622 of locking shaft 616. Aperture 622 is preferably sized to mate with the sides of fastening shelf 604 at least near flange 605 so as to prevent sideways movement of clamping member 602.
[0165] The perpendicular flange 615 of the lock housing 614 prevents meter box lid 620 removal; consequently the meter box lid 620 prevents the fastening lever 603 from rotating to the open position. The fastening lever 603, the clamping member 602, the connector 612, lock housing 614, the lid 620, and the meter box base 619, interact together to prevent the removal of both the meter box lid 620 and the entire locking apparatus.
[0166] Referring back to FIGS. 9, 10, 11, 12, 13, 14, and 15 when flexural member 613 is utilized, the compressive biasing force so produced between clamping member 602 and fastening lever 603 results in a biasing being applied against both sides of wall 623 of the meter box base 619. On the inner side of wall 623, the periphery 640 of flange 608 of fastening lever 603 is urged into engagement with wall 623. On the outer surface of wall 623, inner surface of flange 605 of clamping bracket 602 is biased toward engagement with the outer side of wall 623. Fastening lever 603 is rotated until stop surface 641 engages the inner surface of front flange 621. In a preferred embodiment, the flange 609 of the fastening lever 603 is in a generally parallel position to the flange 610 of the clamping member 602 when stop surface 641 engages the inside surface of front flange 621. The front flange 621 of the meter box base 619 is now trapped between the compression member 630 disposed on flange 608 of the fastening lever 603, and the flange 610 of the clamping member 602. As shown in FIG. 15, when meter box lid 620 is installed onto the meter box base 619, then the upper surface 643 of flange 609 may be prevented from movement and/or may be engaged with the inner surface of box lid 620. If it is desired to provide biased engagement of flange 609 with inner surface of box lid 620, then compression member 630 may be utilized and/or flange 609 may be provided with resilient compression material that may be in the form of a cap such as the cap shape of compressible member 630, or resilient compression material can otherwise be applied to flange 609.
[0167] In an alternate embodiment, compressible member 630 may or may not be used. In this alternate embodiment, a different compressible member, comprising a different shape, material, or attachment means as shown in the illustrations, may be disposed on the inside of flange 605 of the clamping member 602. In this embodiment, as the fastening lever 603 is rotated to a closed position as previously described, the flange 623 of the watthour meter box base 619 becomes trapped between the terminate end of flange 608 disposed on the fastening lever 603, and the compressible member, performing a similar function as previously described.
[0168] In another alternate embodiment, one or more compressible members may or may not be used. Assuming a compressible material is not used, in this embodiment, as the fastening lever 603 is rotated to a closed position as previously described, the wall 623 of the meter box base 619 becomes trapped between the terminate end 640 of flange 608 disposed on the fastening lever 603, and the flange 605 of the clamping member 602.
[0169] In another alternate embodiment, shown in FIGS. 17-19, a compressible member may not be used. In this embodiment, the lever 732 comprises an engaging lobe 734. The lever 732 rotates in a generally parallel relationship to flange 738 of clamping member 737. Thus, axis of rotation 745 may be generally orthogonal to metal box cover 720, parallel to wall 723, parallel to flange 735 which engages an outer surface of wall 723, and perpendicular to the plane of fastening shelf 704. Flange 731 is in a generally perpendicular relationship to flange 735 of the clamping bracket 737. As the fastening lever 732 is rotated to a closed position as shown in FIGS. 17, 18, the wall 723 of the meter box base 719 becomes trapped between the engaging lobe 734 disposed on the fastening lever 732, and the flange 735 of the clamping member 737.
[0170] In another example embodiment of the lever end 609 shown in FIG. 10 is in functional cooperation with a portion 615 of a lock housing mounted to a portion of the clamping member such that the lock prevents rotation of the lever to an open position if the lid is pried upwardly.
[0171] In another example embodiment of the apparatus the lever end 609 is in functional cooperation with a portion of a meter box lid 620 such that the lid prevents rotation of the lever to an open position.
[0172] In another example embodiment of the apparatus shown in FIGS. 10 and 13 the lever end 609 is at least partially outside the interior of the meter box in a mounting position and at least partially inside the interior of the meter box in a locked position.
[0173] Another example embodiment of the apparatus further comprises the meter box. For example, the meter box may have the configuration as shown in FIGS. 1, 8, or that of various other meter boxes suitable for use with the invention.
[0174] Another example embodiment of the apparatus further comprises a locking structure (e.g., 614 or other types of locking structures adaptable for use with the invention) for functional cooperation with the clamping member (see, for example, FIG. 11, item 602) for securing a meter box lid to a meter box base.
[0175] Various other example embodiments provide an apparatus that may be adapted for use on a utility service enclosure generally. Such a utility service enclosure may have various configurations, shapes and sizes and be used in the electric utility industry (e.g., a meter box) as well as in the gas, water, cable, TV utility industries or in other utility industries.
[0176] The example embodiment shown in FIG. 20 comprises locking bracket 801 and receiver housing 814. The locking bracket 801 is shown in a closed mode and is adapted to be attached or mounted to a structural portion of an enclosure generally (which could be any type of container, compartment, box-like structure or enclosure having a cover, access panel or other securable structure which can be secured with respect to a structural portion of the enclosure) or, for example, a utility enclosure (not shown). The locking bracket 801 may comprise a fastening structure 803 and mounting structure 810. The receiver housing 814 can be mounted generally on an outer structural portion of an enclosure (as well as internal portions) in such a way that the receiver housing 814 cooperatively receives and secures (with, for example, a barrel lock or other locking device) the locking bracket 801 so as to secure one structural portion of the enclosure to another portion of the enclosure (such as a cover or an access panel). In one example embodiment, the locking bracket 801 is mounted and attached to a flanged wall of the enclosure so as to be mounted substantially in the interior of an enclosure, wherein an enclosure lid (not shown) may be positioned over an opening of the enclosure. The receiver housing 814 is configured to cooperatively receive a portion of the locking bracket 801 to secure the lid in place with a suitable locking device.
[0177] Another example embodiment for securing a cover of an enclosure comprises a locking bracket, wherein the locking bracket further comprises an engagement member and a mounting member. The engagement member preferably comprises a biased engagement flange which is biased to engage a structural portion of the enclosure. In one embodiment, the locking bracket also generally comprises a fastening shelf connected to the mounting member, with the fastening shelf comprising a first securing means. A lock housing is also preferably used and configured to receive at least a portion of the fastening shelf. In this way the lock housing is used with the locking bracket such that the cover is held in place between the mounting member and at least a portion of the lock housing.
[0178] In an example embodiment, the locking bracket may also comprise an engagement member connected to an opposing flange, with the engagement member biased to engage, for example, a portion of an enclosure wall (e.g., such as a meter box side wall). In an example embodiment, the engagement member may comprise a biased engagement flange in cooperation with an opposing flange, wherein the opposing flange is preferably adapted to be disposed outside the enclosure (e.g., see FIG. 11, item 605; FIG. 4A, item 130), with the biased engagement flange being biased so as to engage an interior surface of an enclosure (e.g., such as a enclosure or meter box side wall). In this way, the locking bracket may be effectively affixed to a portion of an enclosure, with or without camming or lever structures. The locking bracket preferably further comprises a fastening shelf connected to the opposing member. The fastening shelf is disposed outside the enclosure and comprises a first securing means. A cover or access panel may be disposed over the locking bracket in such a way that the biased engagement flange is positioned in the interior of the enclosure and the opposing member is disposed on the outside of the enclosure. A lock housing comprising a second securing means is adapted to receive at least a portion of the fastening shelf. The second securing means is adapted to receive a locking device (e.g., such as a barrel lock) in such a way as to secure the lock housing to the locking bracket. In another embodiment, other structures or features of the other embodiments disclosed herein may also be included with the locking brackets and lock housings above.
[0179] In one example embodiment, the biased engagement flange may be configured to engage the inner ledge of the side wall of an enclosure such as a watthour meter box (e.g., see FIG. 2, items 66 or 68; FIG. 4A, item 140), or to engage a flange or bottom wall (e.g., see FIG. 14, items 621, 623).
[0180] In another embodiment, a locking bracket may further comprise a reinforcing clip member adapted to be mounted over at least a portion of the opposing flange and preferably at least a portion of an inner flange (such as, in one example embodiment, a biased engagement flange) with the inner flange being configured in functional cooperation with the opposing flange to inhibit undesired flexing of the inner flange and/or the opposing flange as well as to reinforce the side wall engagement to prevent tampering or unwanted removal of the locking bracket. The reinforcing clip may also be configured for slidable engagement with at least some portion of the opposing flange and/or inner flange to inhibit undesired flexing of the inner flange and/or the opposing flange.
[0181] The design described does not limit the scope of the invention; the number of flanges may change, or various components may be added or removed to the above-described concept to aid in improved security and operation.
[0182] The foregoing disclosure and description of the invention is illustrative and explanatory of presently preferred embodiments of the invention and variations thereof, and it will be appreciated by those skilled in the art, that various changes in the design, organization, order of operation, means of operation, equipment structures and location, methodology, the use of mechanical equivalents, such as different types of fasteners and locking devices than as illustrated whereby different steps may be utilized, as well as in the details of the illustrated construction or combinations of features of the various elements may be made without departing from the spirit of the invention. As well, the drawings are intended to describe various concepts of the invention so that the presently preferred embodiments of the invention will be plainly disclosed to one of skill in the art but are not intended to be manufacturing level drawings or renditions of final products and may include simplified conceptual views as desired for easier and quicker understanding or explanation of the invention. As well, the relative size and arrangement of the components may be varied from that shown and the invention still operate well within the spirit of the invention as described hereinbefore and in the appended claims. Thus, various changes and alternatives may be used that are contained within the spirit of the invention.
[0183] Accordingly, the foregoing specification is provided for illustrative purposes only, and is not intended to describe all possible aspects of the present invention. It will be appreciated by those skilled in the art, that various changes in the ordering of steps, ranges, interferences, spacings, hardware, and/or attributes and parameters, as well as in the details of the illustrations or combinations of features of the methods and system discussed herein, may be made without departing from the spirit of the invention. Moreover, while the invention has been shown and described in detail with respect to several exemplary embodiments, those of ordinary skill in the art will appreciate that changes to the description, and various other modifications, omissions and additions may also be made without departing from either the spirit or scope thereof.
