Stand for supporting a computing device

Abstract

A stand for supporting a computing device is provided. The stand may support the computing device at a height such that a screen of the computing device is capable of being at or near eye-level of a user. The stand may include a frame member and a gripping mechanism attached to an end of the frame member. The gripping mechanism may secure the computing device to the stand.

Claims

1. A stand for supporting a computing device, comprising: a first side frame structure including a first elongate frame member and a second elongate frame member, the second elongate frame member attached to the first elongate frame member such that the second elongate frame member is operatively movable along a length of the first elongate frame member; a second side frame structure including a third elongate frame member and a fourth elongate frame member, the fourth elongate frame member attached to the third elongate frame member such that the fourth elongate frame member is operatively movable along a length of the third elongate frame member; a first cross frame member having a first end operatively associated with the first elongate frame member and the second elongate frame member, and a second end operatively interconnected to a base segment of the third elongate frame member; the second cross frame member having a first end operatively associated with the third elongate frame member and the fourth elongate frame member, and a second end operatively interconnected to a base segment of the first elongate frame member; wherein the first cross frame member is operatively interconnected to the second cross frame member, wherein the first cross frame member and second cross frame member are configured to move relative to each other when the first side frame structure and second side frame structure are moved apart to configure the stand in an expanded position of use, and wherein the first cross frame member and second cross frame member are configured to move relative to each other when the first side frame structure and second side frame structure are moved together to configure the stand in a collapsed position of use; a height adjustment member operatively interconnected to the first elongate frame member, the height adjustment member configured to move along a portion of the first elongate frame member and selectively engage and fixedly interconnect to a predetermined location on the first elongate frame member, and wherein the height adjustment member has a surface configured to engage a portion of the second elongate member when the stand is in the expanded position of use; and wherein the height adjustment member has at least one selectively movable detent that is selectively biased towards the first frame member.

2. The stand of claim 1, wherein the height adjustment member moves along a channel provided in the first elongate frame member, wherein a cavity configured to receive the at least one selectively movable detent is defined as a space between a plurality of teeth provided in the channel, and wherein the at least one selectively movable detent is configured to engage a space provided between adjacent teeth when the at least one selectively movable detent moves towards the first elongate frame member.

3. The stand of claim 1, wherein the height adjustment member is a first height adjustment member, and further comprising a second height adjustment member operatively interconnected to the third elongate frame member, the second height adjustment member configured to move along a portion of the third elongate frame member, the second height adjustment member configured to selectively engage and fixedly interconnect to a predetermined location on the third elongate frame member, and wherein the second height adjustment member has a surface configured to engage a portion of the fourth elongate member when the stand is in the expanded position of use; and wherein the second height adjustment member has at least one selectively movable detent that is selectively biased towards the third frame member.

4. The stand of claim 1, wherein the second elongate member has a first opening that operatively receives a head of the first cross member and a second opening that the first elongate frame member passes through; wherein the fourth elongate member has a third opening that operatively receives a head of the second cross member and a fourth opening that the third elongate frame member passes through; wherein the head of the first cross member comprises an outer profile that operatively interfaces with a corresponding profile provided in the first opening; wherein the head of the second cross member comprises an outer profile that operatively interfaces with a corresponding profile provided in the third opening; wherein the head of the first cross member further comprises a fifth opening that the first elongate frame member passes through; and wherein the head of the second cross member further comprises a sixth opening that the first elongate frame member passes through.

5. The stand of claim 1, wherein a head of the first cross member further comprises an outer surface that is flush with an outer surface of the second elongate frame member when the stand is in the collapsed position of use, and wherein the head of the second cross member further comprises an outer surface that is flush with an outer surface of the fourth elongate frame member when the stand is in the collapsed position of use.

6. The stand of claim 1, wherein second and fourth elongate frame members include internal surfaces that contact each other when the stand is in the collapsed position of use.

7. The stand of claim 1, wherein: the first side frame structure further includes a first cross link member operatively attached at a first end to the first elongate frame member and at a second end to the second elongate frame member; and the second side frame structure further includes a second cross link member operatively attached at a first end to the third elongate frame member and at a second end to the fourth elongate frame member.

8. The stand of claim 1, further including a first tab interconnected to the base segment of the first elongate frame member, and a second tab interconnected to the base segment of the third elongate frame member.

9. The stand of claim 8, wherein the first and second tabs are biased against corresponding outer surfaces of the first and third elongate frame members.

10. The stand of claim 1, wherein the second elongate member and the fourth elongate member each include a gripping mechanism adapted to selectively engage a portion of the computing device.

11. A stand for supporting a computing device above a support surface, the stand comprising: a first side frame structure including a first elongate frame member and a second elongate frame member, the second elongate frame member attached to the first elongate frame member such that the second elongate frame member is operatively movable relative to the first elongate frame member; a second side frame structure including a third elongate frame member and a fourth elongate frame member, the fourth elongate frame member attached to the third elongate frame member such that the fourth elongate frame member is operatively movable relative to the third elongate frame member; operatively interconnected cross frame members interconnecting the first side frame structure to the second side frame structure, wherein the cross frame members rotate relative to each other when the first side frame structure and second side frame structure are moved apart to configure the stand in an expanded position of use and moved together to configure the stand in a collapsed position of use; a height adjustment member operatively interconnected to the first elongate frame member, the height adjustment member configured to move along a portion of the first elongate frame member, the height adjustment member also configured to selectively engage and fixedly interconnect to a predetermined location on the first elongate frame member, and wherein the height adjustment member has a surface configured to engage a portion of the second elongate member when the stand is in the expanded position of use; and wherein the height adjustment member moves along a channel provided in the first elongate frame member that includes a plurality of teeth.

12. The stand of claim 11, further including a first tab interconnected to the base segment of the first elongate frame member, and a second tab interconnected to the base segment of the third elongate frame member.

13. The stand of claim 11, wherein the second elongate member and the fourth elongate member each include a gripping mechanism adapted to selectively engage a portion of the computing device, the gripping mechanisms including members configured to move in an arcuate path relative to the second elongate member and the fourth elongate member.

14. A stand for supporting a computing device above a support surface, the stand comprising: a first side frame structure including a first elongate frame member and a second elongate frame member, the second elongate frame member attached to the first elongate frame member such that the second elongate frame member is operatively movable relative to the first elongate frame member and is operatively movable along a length of the first elongate frame member, the second elongate frame member including an upper end portion that extends beyond the first elongate frame member, the upper end portion of the second elongate frame member and an upper end portion of the first elongate frame member are each configured to engage the computing device when the stand is in a fully-extended position; a second side frame structure including a third elongate frame member and a fourth elongate frame member, the fourth elongate frame member attached to the third elongate frame member such that the fourth elongate frame member is operatively movable relative to the third elongate frame member and is operatively movable along a length of the third elongate frame member, the fourth elongate frame member including an upper end portion that extends beyond the third elongate frame member, the upper end portion of the fourth elongate frame member and an upper end portion of the third elongate frame member are each configured to engage the computing device when the stand is in the fully-extended position; a cross-frame structure positioned between the first and second side frame structures, the cross-frame structure attached to the first and second side frame structures such that the first and second side frame structures are oriented substantially parallel to one another during collapse of the stand from the fully-extended position to a fully-collapsed position, wherein each of the first, second, third, and fourth elongate frame members is oriented at an oblique angle relative to the support surface when the stand is in the fully-extended position; the improvement comprising: a height adjustment member operatively interconnected to the first elongate frame member and movable along a portion of the first elongate frame member, the height adjustment member also configured to selectively engage and fixedly interconnect to a predetermined location on the first elongate frame member, and wherein the height adjustment member has a surface configured to engage a portion of the second elongate member when the stand is positioned in the fully-extended position and a deflectable member configured to selectively engage a portion of the first elongate member.

15. The stand of claim 14, further including a first tab interconnected to a base segment of the first elongate frame member, and a second tab interconnected to the base segment of a third elongate frame member.

16. The stand of claim 14, wherein the second elongate member and the fourth elongate member each include a gripping mechanism adapted to selectively engage a portion of the computing device, the gripping mechanisms including members configured to move in an arcuate path relative to the second elongate member and the fourth elongate member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the general description of the invention given above and the detailed description of the drawings given below, serve to explain the principles of these inventions.

(2) FIG. 1 is a perspective view showing a collapsible stand for supporting a laptop computer or similar device of one embodiment of the present invention.

(3) FIG. 2 is a detailed view of FIG. 1.

(4) FIG. 3 is a perspective view of the stand of FIG. 1.

(5) FIG. 4 is a right elevation view of the stand of FIG. 3 positioned at the first height.

(6) FIG. 5 is a right elevation view of the stand of FIG. 3 positioned at a second height.

(7) FIG. 6 is a detailed view showing a height adjusting and maintaining mechanism of one embodiment of the present invention.

(8) FIG. 7A is a front perspective view of the height adjusting and maintaining mechanism shown in FIG. 6 in a locked configuration of use.

(9) 7B is a front perspective view of the height adjusting and maintaining mechanism shown in FIG. 6 in an unlocked configuration of use.

(10) FIG. 7C is a rear perspective view of the height adjusting and maintaining mechanism shown in FIG. 6 in an unlocked configuration of use.

(11) FIG. 8 is an exploded view of FIG. 7A.

(12) FIG. 9 is a detailed side perspective view illustrating the upper interconnection between an arm, a leg, cross frame member, and a cross link member of one embodiment of the present invention.

(13) FIG. 10 is a detailed front perspective view showing the interconnected components shown in FIG. 9.

(14) FIG. 11 is a detailed view illustrating the operative interconnection between the arm and a head of the cross member of one embodiment of the present invention.

(15) FIG. 12 is a detailed view focusing on the head of the cross frame member of one embodiment of the present invention.

(16) FIG. 13 is a perspective view showing features of the cross frame member of one embodiment of the present invention.

(17) FIG. 14 is a perspective view of the leg employed by some embodiments of the present invention.

(18) FIG. 15 is a front perspective view showing the stand of FIG. 3 in a collapsed position of use.

(19) FIG. 16 is a rear perspective view showing the stand of FIG. 3 in the collapsed position of use.

(20) FIG. 17 is a side elevation view showing the stand of FIG. 3 in the collapsed position of use.

(21) FIG. 18 is a detailed view of FIG. 15.

(22) FIG. 19 is a detailed view of FIG. 15, wherein pull tabs are extended outwardly.

(23) FIG. 20 is a detailed view of a base segment of the stand of one embodiment of the present invention showing a pull tab extended outwardly.

(24) FIG. 21 is a detailed view oriented opposite that of FIG. 20, showing a biasing member that normally maintains the pull tab against the arm.

(25) FIG. 22 is a perspective view showing a removable tab interconnected to a base segment of one embodiment of the present invention.

(26) FIG. 23 is a front elevation view of the removable tab.

(27) FIG. 24 is a rear elevation view of the removable tab.

(28) FIG. 25 is a perspective view of another embodiment of the present invention that employs an alternate height adjustment and maintaining mechanism.

(29) FIG. 26 is the height adjustment and maintaining mechanism of FIG. 25 in an open configuration.

(30) FIG. 27 is the height adjustment and maintaining mechanism of FIG. 25 in a closed configuration

(31) The following component list and associated numbering found in the drawings is provided to assist in the understanding of one embodiment of the present invention:

(32) TABLE-US-00001 # Component 2 Stand 6 Laptop computer 14 Side frame structure 18 Cross frame structure 20 Cross frame member 22 Leg 26 Arm 30 Engagement surface 34 Base segment 42 Gripping mechanism 46 Foot 48 Front edge 50 Cross link 54 Height adjustment mechanism 58 Flat surface 62 Lock 66 Carrier 70 Channel 74 Teeth 78 Locking protrusion 82 Lock arm 86 Lateral side surface 90 Longitudinal cavity 94 Finger 98 Body portion 102 Protrusion 104 Stop 106 Upper surface 110 Inwardly-facing surface 114 Outwardly-facing surface 118 Locking space 122 Thumb/finger pad 124 Detent 125 Cavity 126 Head 130 Socket 134 Slider mechanism 138 Longitudinal opening 142 Head opening 164 Longitudinal groove 168 Rotating member 172 Band 174 Channel 176 Nub 184 Finger 188 Pin 192 Retainer 196 Boss 200 Opening 204 Pin 208 Rib 212 Rib 216 Leg upper end 220 Outer surface 224 Inner sidewall 228 Outer sidewall 230 Ledge 234 Inner surface 238 Cavity 250 Pull tab 252 Spring 254 Outer surface 258 Hub 262 Removable pull tab 266 Tab portion 270 Gripping member 274 Finger 1002 Stand 1022 Leg 1026 Arm 1034 Base segment 1042 Gripping mechanism 1054 Height adjustment mechanism 1500 Spring 1504 Sidewall 1508 Cavity 1512 Upper Surface 1516 Finger groove 1520 Upper portion 1524 Channel

(33) It should be understood that the drawings are not necessarily to scale. In certain instances, details that are not necessary for an understanding of the invention or that render other details difficult to perceive may have been omitted. It should be understood, of course, that the invention is not necessarily limited to the particular embodiments illustrated herein.

DETAILED DESCRIPTION

(34) FIGS. 1-5 show a stand 2 of one embodiment of the present invention configured to support a laptop computer 6. The stand 2 generally consists of opposing side frame structures 14 interconnected by a cross frame structure 18 consists of cross frame members 20. The side frame structures comprise a leg 22 and arm 26. The arm 26 includes a first end with an engagement surface 30 configured to receive the screen of the laptop computer 6 and a second end that forms at least a portion of a base segment 34 configured to rest on a flat surface. The leg 22, which is slidingly and rotatably associated with the arm 26, includes an upper end that accommodates a gripping mechanism 42 and a second end that acts as a foot configured to engage the flat surface. The gripping mechanism 42 is adapted to engage and secure a front edge 48 of the laptop computer 6. The leg 22 is further interconnected to the base segment 34 of the arm 26 by a cross link 50 to add stability to the expanded stand. In addition, some embodiments of the present invention are equipped with height adjusting functionality. Here, a height adjustment and maintaining mechanism 54 (hereinafter “height adjustment mechanism”) is operatively interconnected to the arms 26, which will be described in further detail below. As shown in FIGS. 4 and 5, movement of the height adjustment mechanism 54 along the length of the arms 26 will alter the vertical distance between the gripping mechanism 42 and the flat surface 58 supporting the stand 2, thereby altering the height of the laptop computer.

(35) FIGS. 6-8 show the height adjustment mechanism 54 of one embodiment of the present invention comprising a lock 62 operatively interconnected to a carrier 66. The height adjustment mechanism 54 is associated with at least one channel 70 integrated into the arms 26 of each side frame structure. The channel includes a plurality of teeth 74 that selectively interface with locking protrusions 78 provided on the carrier 66. The locking protrusions 78 are interconnected to the flexible lock arms 82 cantilevered to a base portion of the carrier 66. In operation, the lock arms 82 move outwardly and inwardly along Arrow A as the carrier 66 is moved along the arms 26 and the locking protrusions encounter lateral side surfaces 86 of the teeth. The lateral side surfaces 86 may be angled or arcuate to facilitate carrier movement. The carrier 66 also includes a longitudinal cavity 90 that receives fingers extending from a body portion 98 of the lock 62. The fingers 94 help guide the lock 62 into the carrier 66 and control the motion of the lock 62 relative to the carrier 66 as the lock is engaged and disengaged. As shown in FIG. 7C bodies 98 also include protrusions 102 that selectively engage stops 104 provided on an upper end of the carrier 66 to prevent extension of the lock beyond a predetermined distance.

(36) In operation, when the lock 62 is disengaged from the carrier, i.e., when the body portion 98 is separated from the upper surface 106 of the carrier 66, the height adjustment mechanism 54 can slide along the arms 26. After a preferred laptop computer height is selected, the body portion 98 is brought into proximity with the upper surface 106 of the carrier 66 by using the thumb/finger pads 122, which engages an inward-facing surface 110 of the lock's body portion 98 onto an outwardly-facing surface 114 associated with the locking protrusions. When the height adjustment mechanism 54 is in the locked position as shown in FIG. 7, this engagement prevents the locking protrusions 78 from moving outwardly along Arrow A, which maintains the locking protrusions 78 within a locking space 18 located between adjacent teeth 74. Alternatively, the locking protrusions can be adapted to grip a leg Movement of the body portion from a locked to unlocked position along Arrow H may be facilitated by thumb/finger pads 122. The carriers 66 of corresponding arms may selectively interconnected to facilitate adjustment when the stand is in the collapsed configuration as shown in FIG. 19. For example, the carrier 66 and/or body portion 98 may include detents 124 that are selectively received in corresponding cavities 125 of adjacent height adjustment mechanism (see, FIGS. 8B and 9) to temporarily interconnect height adjustment mechanisms for coordinated movement. One of ordinary skill in the art will appreciate that other mechanisms may be used to selectively lock the height adjustment mechanisms relative to the arms, one of which is described herein.

(37) FIGS. 9 and 10 illustrate how portions of the stand of one embodiment of the present invention are interconnected. Here, the cross frame member 20 includes a head 126 on its upper portion. The head 126 has a spherical outer profile that fits within a corresponding socket 130 integrated into each leg 22. Each leg 22 also defines a slider mechanism 134, which generally consists of a longitudinal opening 138 and a corresponding opening 142 in the head 126 that operatively receive the arm 26. In operation, when the base segments of the arms 26 are moved away from each other in the direction of Arrow B (see, FIG. 19), the slider mechanism 134 will urge the gripping mechanisms 42 away from each other. This motion will also move the slider mechanisms 134 downwardly along Arrow C towards the base segments. Eventually, a lower surface of the legs will abut the locks, thereby arresting the motion thereof and setting a laptop computer height. If a lock(s) is in the open position when the stand is expanded, the force exerted on upper portions of the body 98 by the lower surface of a leg will force the lock 62 into the carrier 66, thereby setting the location of the height adjustment mechanism 54 and preventing accidental movement of the leg lower than intended.

(38) When the base segments are moved in the direction opposite to Arrow B, the side frame structures move closer to each other and the gripping mechanisms are rotated towards the engagement surfaces of the arms. The expanding/collapsing operation also causes the lower ends of the cross frame members to rotate about a pivot point associated with the base segment of the arms, which selectively changes the angle of the head relative to the outside surface of the leg. In one embodiment of the present invention, which will be described in further detail below, when fully collapsed, a portion of the head is substantially flush with the outer surface of the leg. Movement of the side frame structures will also cause the cross-link members 50 to rotate relative to a pivot point 160. A lower end of the cross link member 50 is also attached to a pivot point associated with the base segment, wherein movement of the side frame member to collapse the stand will conceal the cross link members 50 inside longitudinal grooves 164 provided in the legs 22 (see, FIG. 14).

(39) The gripping mechanism 42 is very similar to that described in U.S. Pat. No. 9,894,988 mentioned above and includes a rotating member 168 that rides in an arcuate track (not shown). An elastic band 172 resides in a channel 174 and is operatively interconnected to the rotating member 168 that ends in a nub 176 that selectively engages the laptop's front edge. The rotating member 168 is, thus, configured to move along Arrow D to accommodate differing stand heights, computer sizes, etc. In one embodiment of the present invention, the band 172 is maintained within the channel 174 by at least one finger 184.

(40) FIGS. 11 and 12 show the interaction between the arms 26 and the head 126, wherein the leg has been removed for clarity. The head of one embodiment has a spherical outer surface with a pin 188 extending therefrom configured to maintain the head's interconnection with the leg as it slides and rotates relative to the arm as the stand is expanded and collapsed. A retainer 192 is positioned opposite the pin 188 and is configured to interface with the inner surface of the socket to operatively secure the head 126. The retainer may include a boss 196 that receives a corresponding pin (not shown) inwardly extending from the retainer 192. The retainer 192 rotates within the socket when the stand is extended and collapsed, allowing the slider mechanism to move freely along the arm. The retainer also allows for the head to be interconnected to the socket during manufacturing. Alternatively, the retainer can be omitted, and the head may be snap-fit into the socket.

(41) FIG. 13 highlights the cross frame member 20 of one embodiment of the present invention and its interactions with the leg operatively interconnected thereto. The cross frame member includes an opening 200 that receives the corresponding cross frame member, which is held in place by a pin 204 that interconnects the cross frame members that allows them to rotate relative to each other when the stand is collapsed and expanded. The cross frame members may also include stiffening ribs 208 that allows the cross frame member 20 to be made of thinner material if desired. Stiffening of the cross frame member is also achieved by perpendicularly disposed stiffening ribs 212 that substantially extend the entire length of the cross frame members. Because one cross frame member penetrates the other, the perpendicularly disposed stiffening rib 212 of one cross frame member will be located behind the perpendicularly disposed stiffening rib 212 of the other cross frame member. Accordingly, when collapsed, the rib 212 of the penetrating cross frame member will be nested behind the rib 212 of the forward-most cross frame member.

(42) FIG. 14 shows a leg 22 of one embodiment of the present invention with an upper end 216 associated with the gripping mechanism 42 and a lower end associated with the foot 46. The leg 22 includes an outer surface 220 with sidewalls 224, 228 extending therefrom to define a longitudinal groove 164. The outer surface 220 may extend from the arm inner sidewall 224 to define a ledge 230. As will be appreciated upon review of FIG. 16, inner surfaces 234 of opposing legs 22 engage when the stand is in the collapsed position. The leg 22 may also include a cavity 238 configured to receive the rib 208 of the cross frame member 20 as the stand is transitioned into the collapsed position.

(43) FIGS. 15-19 show the stand 2 and the collapsed configuration, wherein inner surfaces of the gripping mechanisms 42 are placed in close proximity. Also, as discussed above, portions of the legs contact to conceal the folded cross frame structure. Here, the feet of the side frame structures, which are located above the base segments 34, contact each other. The base segments may include a knurled surface to facilitate grasping by the user's thumbs and index fingers, which gives the user tactile confirmation of the correct grasping locations, which may prevent obstruction of the feet that would otherwise prevent outward motion of the base segments. Some embodiments of the present invention include pull tabs 250 attached to the base segments that may be biased against the outside surface of the arms, which will be described in further detail below. The pull tabs, which may be removable, facilitate expanding the stand and reduces the chances that the user will adversely affect the motion of the legs as they are deployed.

(44) FIGS. 19 and 20 show the pull tabs 150 of one embodiment of the present invention operatively associated with the arms 26 of some embodiments of the present invention. The pull tabs 150 can employ a traditional hinge mechanism as shown or comprise a living hinge. The pull tabs 150 are biased with the spring 252, for example, in the direction of Arrow E, and lay flat against an outer surface 254 of the arm's base segments. In operation, the user counteracts the spring force by rotating the pull tabs 150 in the direction opposite Arrow E and pulls the base segments 34 away from each other in the direction of Arrow B. Once the stand is expanded, the user removes pressure from the pull tabs, which return to rest against the outer surface 254. This functionality virtually eliminates accidental user engagement with the feet, which allows for a smooth transition from the collapsed position to the expanded position. FIG. 19 also shows the height adjustment mechanisms 54 interconnected as a unit as mentioned above, which allows for the height of each side frame structure to be modified in the same fashion by moving both locks to the unlocked position. Finally, FIG. 20 shows a hub 58 that rotatably receives lower ends of the cross frame members.

(45) One of ordinary skill in the art will appreciate that the pull tabs can be removable such that they are selectively interconnected to the end segments of each leg. More specifically, FIGS. 22-24 show a removable pull tab 262 comprising a tab portion 266 operatively interconnected to a gripping member 270. Here, a living hinge is provided that interconnects the tab portion 266 to the gripping member 270, but other mechanisms for rotatable interconnection are contemplated. In other embodiments, the orientation of the tab portion is fixed relative to the gripping member. In this embodiment, the gripping member 270 is interconnected to the base segment 34 by selectively to flexible fingers 274.

(46) FIGS. 25-27 show a stand 1002 of another embodiment of the present invention that employs an alternate height adjustment mechanism 1054. FIG. 25 shows the stand 1002 and a collapsed configuration wherein corresponding height adjustment mechanism 1054 are engaged or selectively interconnected. The height adjustment mechanism 1054 of this embodiment is biased in the direction of Arrow F by a spring member 1500, for example. When positions in a closed position, as shown in FIG. 27, inwardly-extending detents (not shown) interconnected to an inner surface(s) of the height adjustment mechanism's 1054 sidewall 1504 are engaged within a locking cavity 1508 provided in the arms 1026. Once locked in place, an upper surface 1512 will arrest motion of the legs 1022 to as described above.

(47) Unlocking the height adjustment mechanism 1054 is achieved by the application of pressure in the direction of Arrow G on to finger grooves 1516 provided on the height adjustment mechanisms 1054, which urges an upper portion 1520 of the height adjustment mechanism in the direction opposite to Arrow F. Once the locking detents are removed from the locking cavity 1508, the height adjustment mechanism 1054 is capable of movement along a channel 1524 provided in the outer surface of the leg 1026. One of ordinary skill in the art will appreciate that a corresponding channel may be provided in the inner surface of the leg and corresponding inwardly-disposed arcing cavities may be provided.

(48) Exemplary characteristics of embodiments of the present invention have been described. However, to avoid unnecessarily obscuring embodiments of the present invention, the preceding description may omit several known apparatus, methods, systems, structures, and/or devices one of ordinary skill in the art would understand are commonly included with the embodiments of the present invention. Such omissions are not to be construed as a limitation of the scope of the claimed invention. Specific details are set forth to provide an understanding of some embodiments of the present invention. It should, however, be appreciated that embodiments of the present invention may be practiced in a variety of ways beyond the specific detail set forth herein.

(49) Modifications and alterations of the various embodiments of the present invention described herein will occur to those skilled in the art. It is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention, as set forth in the following claims. Further, it is to be understood that the invention(s) described herein is not limited in its application to the details of construction and the arrangement of components set forth in the preceding description or illustrated in the drawings. That is, the embodiments of the invention described herein are capable of being practiced or of being carried out in various ways. The scope of the various embodiments described herein is indicated by the following claims rather than by the foregoing description. And all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope. It is intended to obtain rights which include alternative embodiments to the extent permitted, including alternate, interchangeable and/or equivalent structures, functions, ranges or steps to those claimed, whether or not such alternate, interchangeable and/or equivalent structures, functions, ranges or steps are disclosed herein, and without intending to publicly dedicate any patentable subject matter.

(50) The foregoing disclosure is not intended to limit the invention to the form or forms disclosed herein. In the foregoing Detailed Description, for example, various features of the invention are grouped together in one or more embodiments for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed inventions require more features than expressly recited. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the following claims are hereby incorporated into this Detailed Description, with each claim standing on its own as a separate preferred embodiment of the invention. Further, the embodiments of the present invention described herein include components, methods, processes, systems, and/or apparatus substantially as depicted and described herein, including various sub-combinations and subsets thereof. Accordingly, one of skill in the art will appreciate that would be possible to provide for some features of the embodiments of the present invention without providing others. Stated differently, any one or more of the aspects, features, elements, means, or embodiments as disclosed herein may be combined with any one or more other aspects, features, elements, means, or embodiments as disclosed herein.