Adjustable food shield
09723935 · 2017-08-08
Assignee
Inventors
- Larry N. McAllister (Dover, DE, US)
- Kenneth Shawn Christianson (Clayton, DE, US)
- Brian Christopher Powell (Dover, DE, US)
Cpc classification
International classification
Abstract
A food shield has shield panels that are location adjustable and angularly adjustable in respect of support posts coupled to a buffet table or cart. For vertical or location adjustment of a shield panel in relation to a post, a bracket assembly includes outer and inner collar portions, a grip element positioned between the outer and inner collar portions, and a tightening element that tightens the connection of the assembled collar against support posts. A lever is set to lock the outer and inner collar portions to one another, and pulled to release the collar portions. For angular adjustment, each bracket assembly includes an indexing base, a rotatable arm assembly with an indexing hub, and a removable or retractable coupling element. The bracket assembly further has clamps that engage the shield panel at or near each of the front and rear panel edges.
Claims
1. A food shield, comprising: at least one shield panel adapted to be positioned between two posts and adapted for coupling to the two posts, said shield panel having a front edge, a back edge and opposed end sections and defining a thickness between a front face and an opposite face; a first panel clamp assembly comprising an upper panel clamp and a lower panel clamp that mates with the upper panel clamp, with the upper panel clamp and lower panel clamp when mated together defining a panel receiving slot of the panel clamp assembly therebetween, such that the at least one shield panel is held between the upper panel clamp and lower panel clamp in the panel receiving slot along the front edge of the at least one shield panel with the upper panel clamp contacting the front face and the lower panel clamp contacting the opposite face; a second panel clamp assembly comprising a second upper panel clamp, and a second lower panel clamp that mates with the second upper panel clamp, with the second upper panel clamp and second lower panel clamp when mated together defining a second panel receiving slot of the second panel clamp assembly therebetween, such that the at least one shield panel is held between the second upper panel clamp and second lower panel clamp in the panel receiving slot along the rear edge of the shield panel with the second upper panel clamp contacting the front face and the second lower panel clamp contacting the opposite face; a first adjustable bracket assembly connecting together the first panel clamp and the second panel clamp and adapted for coupling to the first post, wherein said first adjustable bracket assembly provides location adjustment of the shield panel in respect to the first post, the first adjustable bracket assembly comprising at least two separable collar portions that when joined together form a collar that surrounds the first post, said first separable collar portion defining a semi-circular inner cavity with sidewalls defining tapered slots extending along each of the sidewalls, and said second separable collar portion defining a semi-circular inner cavity with sidewalls defining extensions adapted to slidably engage with the tapered slots, and wherein each sidewall of the second separable collar portion further defines a front notch; and a lever pivotally connected to the first separable collar portion and with at least one lever arm adapted to contact the second collar portion, said lever urging the first collar portion toward the second collar portion when in an engaged position, and urging the first collar portion away from the second collar portion when in a released position, wherein the lever has a wishbone configuration with two arms, with the first arm pivotally joined to the first separable collar portion at one side of the semi-circular opening, and with the second arm pivotally joined to the first separable collar portion at an opposite side of the semi-circular opening, and wherein the first arm of the lever defines a first key to engage one of said front notches and the second arm of the lever defines a second key to engage the other of said front notches.
2. The food shield of claim 1, wherein the lever has an apex, and a tab extends outwardly from the apex.
3. The food shield of claim 1, wherein the first key extends outwardly from the first arm of the lever at a location proximate to the pivot point of the first arm of the lever, and wherein the second key extends outwardly from the second arm of the lever at a location proximate to the pivot point of the second arm of the lever.
4. The food shield of claim 1, wherein the lever has an apex, and an extension lip extends outwardly from the apex, said extension lip adapted for engagement with a protrusion of the first separable collar portion.
5. The food shield of claim 1, further comprising a first grip element positioned inside the semi-circular recess of at least one of the separable collar portions of the adjustable bracket assembly, wherein said first grip element has an inner surface that contacts the first post.
6. The food shield of claim 5, further comprising one or more magnets appended to or associated with an outer surface of the first grip element, said one or more magnets adapted to be inserted into one or more receiving holes in one of the separable collar portions.
7. The food shield of claim 1, wherein the first adjustable bracket assembly includes an indexing base configured to mate with a rotatable arm assembly having an indexing hub, such that rotating the rotatable arm assembly alters the angular position of the at least one shield panel in respect to the first post.
8. The food shield of claim 7, wherein the rotatable arm assembly via the indexing hub is configured to rotate, and wherein the one collar portion includes a series of holes, slots or recesses spaced apart in an array such that a removable or retractable coupling element engages with a respective hole, slot or recess of the indexing hub.
9. The food shield of claim 7, wherein the rotatable arm assembly has a panel support rod defining a slot with an inner profile that is complementary to an outer profile of a male coupler of a bushing extending from the indexing hub of the rotatable arm assembly.
10. The food shield of claim 9, wherein the first panel clamp assembly is coupled to or formed at one end of the panel support rod, and the second panel clamp assembly is coupled to or formed at an opposite end of the panel support rod.
11. The food shield of claim 9, wherein the bushing is slidably positioned along the length of the panel support rod.
12. The food shield of claim 9, wherein the panel support rod is positioned below the opposite surface of the shield panel.
13. The food shield panel of claim 1, further comprising a panel support rod joined to the first adjustable bracket assembly, wherein the first panel clamp assembly is coupled to or formed at one end of the panel support rod, and the second panel clamp assembly is coupled to or formed at an opposite end of the panel support rod.
14. The food shield of claim 13, wherein the panel support rod has at least one flat outer surface.
15. The food shield of claim 13, further comprising a support rod receiving element extending from the first adjustable bracket assembly, said support rod receiving element defining a bore into which the panel support rod is received.
16. The food shield of claim 13, wherein the support rod receiving element defines at least one substantially flat outer surface adapted for contact with either the front face or the opposite face of the shield panel.
17. The food shield of claim 1, wherein the first post defines an axis that extends in a direction vertically from a mounting surface of a food serving structure.
18. The food shield of claim 1, wherein the first post defines an axis that extends in a direction parallel to a display area of a food serving structure.
19. A food shield, comprising: at least one shield panel adapted to be positioned between two posts and adapted for coupling to the two posts, said shield panel having a front edge, a back edge and opposed end sections and defining a thickness between a front face and an opposite face; a first panel clamp assembly comprising an upper panel clamp and a lower panel clamp that mates with the upper panel clamp, with the upper panel clamp and lower panel clamp when mated together defining a panel receiving slot of the panel clamp assembly therebetween, such that the at least one shield panel is held between the upper panel clamp and lower panel clamp in the panel receiving slot along the front edge of the at least one shield panel with the upper panel clamp contacting the front face and the lower panel clamp contacting the opposite face; a second panel clamp assembly comprising a second upper panel clamp, and a second lower panel clamp that mates with the second upper panel clamp, with the second upper panel clamp and second lower panel clamp when mated together defining a second panel receiving slot of the second panel clamp assembly therebetween, such that the at least one shield panel is held between the second upper panel clamp and second lower panel clamp in the panel receiving slot along the rear edge of the shield panel with the second upper panel clamp contacting the front face and the second lower panel clamp contacting the opposite face; a first adjustable bracket assembly connecting together the first panel clamp and the second panel clamp and adapted for coupling to the first post, wherein said first adjustable bracket assembly provides location adjustment of the shield panel in respect to the first post, the first adjustable bracket assembly comprising at least two separable collar portions that when joined together form a collar that surrounds the first post, said first separable collar portion defining a semi-circular inner cavity with sidewalls defining tapered slots extending along each of the sidewalls, and said second separable collar portion defining a semi-circular inner cavity with sidewalls defining extensions adapted to slidably engage with the tapered slots; a first grip element positioned inside the semi-circular recess of at least one of the separable collar portions of the adjustable bracket assembly, wherein said first grip element has an inner surface that contacts the first post; and one or more magnets appended to or associated with an outer surface of the first grip element, said one or more magnets adapted to be inserted into one or more receiving holes in one of the separable collar portions; and a lever pivotally connected to the first separable collar portion and with at least one lever arm adapted to contact the second collar portion, said lever urging the first collar portion toward the second collar portion when in an engaged position, and urging the first collar portion away from the second collar portion when in a released position.
20. The food shield panel of claim 19, further comprising a panel support rod joined to the first adjustable bracket assembly, wherein the first panel clamp assembly is coupled to or formed at one end of the panel support rod, and the second panel clamp assembly is coupled to or formed at an opposite end of the panel support rod.
Description
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
(1) The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown in the drawings embodiments which are presently preferred. It should be understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown.
(2) In the drawings:
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
DETAILED DESCRIPTION OF THE INVENTION
(26) Reference will now be made in detail to the present embodiment of the invention illustrated in the accompanying drawings. The same or like reference numbers may be used in the drawings to refer to the same or like features. It should be noted that the drawings are in simplified form and not drawn to a precise scale.
(27) In reference to the disclosure herein, for purposes of convenience and clarity only, directional terms such as top, bottom, above, below, front, rear, right, left, inner, and outer, are used with respect to the accompanying drawings. Such directional terms used in conjunction with the following description of the drawings should not be construed to limit the scope of the invention in any manner not explicitly set forth herein. Unless specifically set forth herein, the terms “a”, “an” and “the” are not limited to one element but instead should be read as meaning “at least one”. The terminology includes the words noted above, derivatives thereof and words of similar import.
(28) Turning in detail to the drawings,
(29) Each shield panel support structure 12 preferably is configured to have a substantially u-shape. Shield panel support structures may, however, be provided in other shape configurations. Other shape configurations include, but are not limited to a singular and substantially vertical post and l-shaped, pentagonal, trapezoidal, or other polygonal shape configurations. When configured to have a substantially u-shape, each support structure 12 preferably includes side posts 16 and a bridge element 18, extending above the food serving structure 200 and between the side posts 16. Bend elements 20 are preferably positioned and coupled to side posts 16 and the bridge element 18. The support structure 12 may further include connection elements (e.g. screws and/or mounting plates, not shown) that facilitate connection to the food serving structure 200, which are positioned below the food serving structure 200.
(30) Each support structure 12 and its respective elements 16, 18, 20 preferably are manufactured from non-oxidizing metallic-based or aluminum-based materials. Support structures 12 may be manufactured as a unitary piece, or the support structure elements 16, 18, 20 may be connected together via mechanical (e.g., complementary threads or welding) or chemical (e.g., adhesives) methods. Support structure elements 16, 18, 20 preferably are manufactured from hollow rod materials with a substantially circular cross-section (See, e.g.,
(31) Upon assembly, the food shield 10 preferably includes one front shield panel 14A coupled to the support structure 12 for angular and vertical or height adjustment, and one top panel 14B laterally positioned laterally above the receptacles 204 of the food serving structure 200 for angular and/or location adjustment. Each shield panel 14 has a panel body 22 with a substantially rectangular configuration. Preferably the panel body 22 includes a transparent or substantially transparent central section 23, semi-opaque or opaque end sections 24, and rounded edges 26. Each shield panel 14 also preferably has a substantially uniform thickness T.sub.1 (
(32) Where a shield panel 14 includes semi-opaque or opaque end sections 24, the end sections 24 may be applied with a frosted or semi-opaque element 30. The frosted or semi-opaque element 30 may be applied as a coating or film on the upper and lower surfaces 25a, 25b of the end sections 24 such that each end section 24 is provided with a thickness T2 (
(33) Shield panels 14 may be manufactured in various lengths. Standard lengths typically have a minimum length of about 8″ (inches) and a maximum length of about 8′ (feet). Standard thicknesses typically are a minimum thickness of about 0.25″ (inches) and a maximum thickness of about 0.5″ (inches).
(34) As shown particularly in
(35) For purposes of illustration,
(36)
(37) Each bracket assembly 40R includes a collar 42, having at least two separable collar portions (
(38) The grip element 50 is positioned between the outer and inner collar portion 44a, 44b, as shown particularly in
(39) Referring particularly to
(40) The inner collar portion 44b, as shown particularly in
(41) Elements of the adjustable bracket assembly 40R that provide angular adjustment of the shield panel 14A are shown particularly in
(42) As shown particularly in
(43) To rotate the rotatable arm assembly 110, the rotatable arm assembly 110, the axle bolt 150, and the indexing hub 112 are assembled with a clearance fit such that the rotatable arm assembly 110 is able to rotate with respect to base-axle axis β (
(44) As shown particularly in
(45) Each support rod bushing 122 includes a male coupler 138 that extends inwardly from an inner surface of the bushing 122. The panel support rod 118 has an elongated rod body 145 with a slot 142 having an inner profile complementary to the outer profile of the male coupler 138 such that the slot 142 and the male coupler 138 slidably engage and the outer diameter of the rod 118 slidably fits within each bushing 122, as shown in
(46) Coupled to each end of the panel support rod 118 is the panel clamp assembly 116, as shown particularly in
(47) The lower panel clamp 116b also has an L-shaped body 156. The lower panel clamp 116b, however, includes a lower panel clamp portion 158 with a rod receiving hole 160, having a male clamp-rod coupler 162 disposed therein. The male clamp-rod coupler 162 has an outer profile complementary to the inner profile of the slot 142 disposed in the panel support rod 118 such that the rod 118 engages within the coupler 162. The lower panel clamp 116b also includes a bottom portion 164, having at least two recessed holes 166 configured to receive clamp fasteners 144 (
(48) When fully assembled, each adjustable bracket assembly 40 provides for both vertical position and angular adjustment of a shield panel 14. Position adjustment of the shield panel 14 is provided by the panel clamp assembly 116 to accommodate shield panels of various sizes and food serving structures of various widths. Position adjustment of an adjustable bracket assembly 40 is provided when assemblies are coupled to posts 16 and/or bridge elements 18 of a shield panel support structure 12. The various elements provided in each bracket assembly 40 lend to the adjustable nature of the food shields, allowing bracket assemblies 40 to be positioned not only upwardly and downwardly, but laterally as well. Moreover, the adjustable bracket assemblies 40 disclosed herein include elements that allow for angular adjustment of shield panels 14/14A further lending to the adjustable nature and aesthetic value of the food shield described herein.
(49) The adjustable bracket assemblies 40R, 40L can be separated from and rejoined to a support post 16 at any location of the support post. Because they are separable into parts, the user does not need to slide the bracket assemblies along a substantial length of a support post 16 to secure the bracket assemblies to a desired location along the support post. The food shields with adjustable bracket assemblies according to the invention thus may be used with any kind of support posts, including support posts 16 as shown, that are contiguous without an open post end.
(50) Referring next to
(51) The first bracket assembly 240 includes a collar 242, having at least two separable collar portions (
(52) The inner collar portion 244b, as shown particularly in
(53) A friction material 247 or gasket or shim preferably is installed on the inward-facing contoured surfaces 272, 294 of the outer collar portion 244b and inner collar portion 244a. The friction material 247 enhances engagement of the collar portions 244a, 244b to the post 16, or bridge element 18.
(54) Preferably, during assembly the outer collar portion 244a is first positioned on a post 16 and the inner collar portion 244b next is positioned on an opposite side of the post 16. Next, the inner collar portion 244b and the outer collar portion 244a are moved toward one another so that the male mating elements 278 engage within female cavities 298, coupling the inner and outer collar portions 244a, 244b together. To secure the position of the collar 242 on its respective post 16 (or alternatively on a bridge element 18), the post tightening elements 280 are fitted into the threaded through openings 299 of the inner collar portion 244b and into the threaded openings 279 of the outer collar portion 244a. Tightening of the post tightening elements 280 draw the outer collar portion 244a and inner collar portion 244b toward one another and in engagement around the post 16.
(55) Elements of the adjustable bracket assembly 240 that provide angular adjustment of the shield panel 14 are shown particularly in
(56) As shown particularly in
(57) The panel support rod 318 has an elongated rod body with at least one flat side, preferably six flat sides as shown in
(58) The support rod receiving element 320 defines at least one flat exterior face 408 that is adapted to face a surface of the shield panel 14. The flat exterior face 408 may be in direct contact with the surface of the shield panel 14. Alternatively, a strip of plastic or friction engaging material 410 may be installed on the flat exterior face 408 for contact with the face surface of the shield panel 14.
(59) Coupled to each end of the panel support rod 318 is the panel clamp assembly 116, as shown particularly in
(60) The lower panel clamp 116b also has an L-shaped body 156 in the embodiment of
(61) Referring now to
(62) The inner collar portion 344b of the adjustable bracket assembly 340, as shown in
(63) Preferably, during assembly the outer collar portion 344a is first positioned on a post 16 or bridge element 18 and the inner collar portion 344b next is positioned on an opposite side of the post 16 or bridge element 18. Next, the inner collar portion 344b and the outer collar portion 344a are moved toward one another so that the male mating elements engage within female cavities, coupling the inner and outer collar portions 344a, 344b together. To secure the position of the collar 342 on its respective bridge element 18 (or alternatively on a post 16), the post tightening elements are fitted into the threaded through openings of the inner collar portion 344b and into the threaded openings of the outer collar portion 344a. Tightening of the post tightening elements draw the outer collar portion 344a and inner collar portion 344b toward one another and in engagement around the bridge element 18. In addition, set screw 396 is tightened to better grip the bracket assembly 340 to the post 16 or bridge element 18.
(64) This second adjustable bracket assembly 340 lacks the structure to angularly adjust orientation of the shield panel 14. A shield panel 14 is supported, in combination, by the adjustable bracket assembly 340, a panel clamp assembly 116, a panel support rod 318, a support rod receiving element 320, and support rod bushings 322. With the second adjustable bracket assembly 340, the support rod receiving element 320 is joined to the inner collar portion 344b by one or more arms 390 that extend away from the inner collar portion 344b. In all other respects, the panel clamp assembly 116, panel support rod 318, and the support rod receiving element 320 have the structure described with reference to the first adjustable bracket assembly of
(65) When fully assembled, each adjustable bracket assembly 240, 340 provides for vertical position of a shield panel 14, and adjustable bracket assembly 240 provides for angular adjustment of a shield panel 14. Position adjustment of the shield panel 14 is provided by the panel clamp assembly 116 to accommodate shield panels of various sizes and food serving structures of various widths. Position adjustment of an adjustable bracket assembly 240, 340 is provided when assemblies are coupled to posts 16, 18 of a shield panel support structure 12. The various elements provided in each bracket assembly 240, 340 lend to the adjustable nature of the food shields, allowing bracket assemblies 240, 340 to be positioned not only upwardly and downwardly, but laterally as well. Moreover, the adjustable bracket assemblies 240 disclosed herein include elements that allow for angular adjustment of shield panels 14 further lending to the adjustable nature and aesthetic value of the food shield described herein.
(66) Referring next to
(67) The first bracket assembly 640 includes a collar 642, having at least two separable collar portions (
(68) The inner collar portion 605 of the bracket assembly 640, as shown particularly in
(69) A friction material 690 or gasket or shim preferably is installed on the inward-facing contoured surfaces 672 of the outer collar portion 644. The friction materials 660, 690 enhance engagement of the collar portions 644, 605 to the post 12, or either vertical 16 or bridge element 18.
(70) Preferably, during assembly the outer collar portion 644 is first positioned on a post 12 and the inner collar portion 605 next is positioned on an opposite side of the post 12. Next, the inner collar portion 605 and the outer collar portion 644 are moved toward one another so that the male mating elements 678 engage within tapered slotted female cavities 698, coupling the inner and outer collar portions 605, 644 together. To secure the position of the collar 642 on its respective post 12 (vertical post section 16 or alternatively on a bridge element 18), the lever 600 is pressed downwardly to its engaged position (See
(71) Lever 600 has a generally wishbone configuration with two arms 602 meeting at an apex of an arc from which a tab 601 extends outwardly in a direction generally perpendicular to the axes of the arms 602. The tab 601 is shown with a curved configuration that is more easily gripped by one or more of a workman's fingers. Keys 603 extend outwardly from the ends of the arms 602 in a direction generally opposite the direction in which the tab 601 extends. Keys 603 have generally flat outer faces and are shaped to be received within respective notches 676 formed in the male mating elements 678 of the outer collar portion 644 (See
(72) Because the tapered slotted female cavities 698 of the inner collar portion 605 are closed at the top end, the male mating elements 678 of the outer collar portion 644 are slidingly engaged from the bottom opening of the tapered slotted female cavities 698 and urged upward. Referring to
(73) To disengage the outer collar portion 644 from the inner collar portion 605 to adjust position along a post 12 or alternative to remove the bracket assembly 640 from the post, the lever 600 may be lifted by tab 601 to cause a pivoting action of the lever about the pins 702 (See pins 702 that extend through holes 618). The keys 603 in notches 676 push or urge sliding movement of the outer collar portion 644 with respect to the inner collar portion 605. The pivoting action of the lever 600 thus also enables loosening of the outer collar portion 644 from the inner collar portion 605. Compare position of lever and outer collar portion as shown in
(74) Elements of the adjustable bracket assembly 640 that provide angular adjustment of the shield panel 14 are shown particularly in
(75) As shown particularly in
(76) The panel support rod 518 has an elongated rod body with at least one flat side, preferably six flat sides as shown in
(77) The support rod receiving element 520 defines at least one flat exterior face 508 that is adapted to face a surface of the shield panel 23. The flat exterior face 508 may be in direct contact with the surface of the shield panel 23. Alternatively, a strip of plastic or friction engaging material (not shown in
(78) Coupled to each end of the panel support rod 518 is the panel clamp assembly 516, as shown particularly in
(79) The lower panel clamp 516b also has an L-shaped body 156 in the embodiment of
(80) Referring now to
(81) The inner collar portion 544a of the adjustable bracket assembly 540, as shown in
(82) Preferably, during assembly the outer collar portion 544b is first positioned on a post 12 and the inner collar portion 544a next is positioned on an opposite side of the post 12. Next, the inner collar portion 544a and the outer collar portion 544b are moved toward one another so that the male mating elements engage within tapered slotted female cavities, coupling the inner and outer collar portions 544a, 544b together. To secure the position of the collar 542 on its respective post 12 (vertical post section 16 or alternatively on a bridge element 18), the lever 600 is pressed downwardly to its engaged position (See
(83) This second adjustable bracket assembly 540 lacks the structure to angularly adjust orientation of the shield panel 23. A shield panel 23 is supported, in combination, by the adjustable bracket assembly 540, a panel clamp assembly 516, a panel support rod 518, a support rod receiving element 520, and support rod bushings 522. With the second adjustable bracket assembly 540, the support rod receiving element 520 is joined to the inner collar portion 544a by one or more arms 390 that extend away from the inner collar portion 544a. In all other respects, the panel clamp assembly 516, panel support rod 518, and the support rod receiving element 520 have the structure described with reference to the first adjustable bracket assembly of
(84) When fully assembled, each adjustable bracket assembly 40, 240, 340, 540, 640 provides for vertical position of a shield panel 14, 23, and adjustable bracket assemblies 40, 240, 640 provide for angular adjustment of a shield panel 14, 23 for the food shield assembly 210, 510. Position adjustment of the shield panel 14, 23 is provided by the panel clamp assembly 116, 516 to accommodate shield panels of various sizes and food serving structures of various widths. Position adjustment of an adjustable bracket assembly 40, 240, 340, 540, 640 is provided when assemblies are coupled to posts 16, 18 of a shield panel support structure 12. The various elements provided in each bracket assembly 40, 240, 340, 540, 640 lend to the adjustable nature of the food shields, allowing bracket assemblies 40, 240, 340, 540, 640 to be positioned not only upwardly and downwardly, but laterally as well. Moreover, the adjustable bracket assemblies 40, 240, 640 disclosed herein include elements that allow for angular adjustment of shield panels 14, 23 further lending to the adjustable nature and aesthetic value of the food shield described herein.
(85) The adjustable bracket assemblies 40, 240, 340, 540, 640 can be separated from and rejoined to a support post 12, 16, 18 at any location of the support post. Because they are separable into parts, the user does not need to slide the bracket assemblies along a substantial length of a support post 12, 16, 18 to secure the bracket assemblies to a desired location along the support post. The food shields with adjustable bracket assemblies according to the invention thus may be used with any kind of support posts, including support posts 12, 16, 18 as shown, that are contiguous without an open post end.
(86) Preferably the inner and outer collars of the adjustable bracket assemblies are fabricated from materials rated safe for food handling equipment, including but not limited to, stainless steel, non-oxidizing metallic-based or aluminum-based materials, and thermosetting polymers. Preferably, the lever also is fabricated from materials rated safe for food handling equipment, and may be of the same material or different material than the inner and outer collars.
(87) As such, it will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present invention as defined by the appended claims.