초록 ▼

Covers for use with refrigeration units may include rails that extend across a top opening of the refrigeration unit. One or more lids may be supported by support surfaces on the rails. The lids may be movable (e.g., slidable) between closed and open positions. The lids may include lid plates and fe

Covers for use with refrigeration units may include rails that extend across a top opening of the refrigeration unit. One or more lids may be supported by support surfaces on the rails. The lids may be movable (e.g., slidable) between closed and open positions. The lids may include lid plates and feet configured to raise lid plates off of the support surfaces, thereby forming gaps between the lid plates and the support surfaces. The lids may include filling elements to fill at least a portion of the gaps between the lid plates and the support surfaces. In some embodiments, the feet may have a generally Z-shaped configuration. In some embodiments, the cover may include multiple frame elements having transparent spacers at the ends of the frame elements, and the cover may include end pieces at the ends of the cover.

대표청구항 ▼

1. A cover for use with a refrigeration unit, the cover comprising: a plurality of rails configured to extend across a top opening of the refrigeration unit, the plurality of rails including one or more support surfaces;a lid configured to slidably engage the support surfaces such that the lid is sl

1. A cover for use with a refrigeration unit, the cover comprising: a plurality of rails configured to extend across a top opening of the refrigeration unit, the plurality of rails including one or more support surfaces;a lid configured to slidably engage the support surfaces such that the lid is slidable between a closed position and an open position, the lid comprising: a lid plate having a top surface and a bottom surface;a plurality of feet coupled to the lid plate, and configured to rest on the support surface to raise the lid plate such that a gap is positioned between the bottom surface of the lid plate and the support surface;a filling element positioned between the feet such that the filling element fills at least a portion of the gap, thereby restricting air flow through the gap, wherein the filling element fills less than or equal to about 75% of the gap between the bottom surface of the lid plate and the support surface. 2. The cover of claim 1, wherein the rails are curved. 3. The cover of claim 1, further comprising a center plate supported by the rails and positioned generally in the center of the cover. 4. The cover of claim 3, further comprising a plurality of lids, wherein a first lid is positioned on a first side of the center plate, and a second lid is positioned on a second, opposing side of the center plate, wherein the first lid, second lid, and center plate are configured to be in a stacked configuration when the first lid and the second lid are in the open position. 5. The cover of claim 3, wherein the center plate is spaced apart from the lid such that a gap is positioned between the center plate and the top surface of the lid plate, and wherein the center plate comprises a center plate filling element that fills at least a portion of the gap between the center plate and the top surface of the lid plate. 6. A refrigeration unit comprising: side walls that enclose an internal compartment and provide a top opening; andthe cover of claim 1 disposed over the top opening. 7. The cover of claim 1, wherein the filling element comprises an elongate sealing strip. 8. The cover of claim 1, wherein the filling element comprises a rigid or semi-rigid material. 9. The cover of claim 8, wherein the filling element comprises a polyvinyl chloride (PVC) material. 10. The cover of claim 1, wherein the filling element fills at least about 50% of the gap between the bottom surface of the lid plate and the support surface. 11. The cover of claim 1, further comprising anti-friction elements positioned on the support surfaces, such that the feet slide on the anti-friction elements. 12. The cover of claim 11, wherein the anti-friction elements comprise an ultra-high-molecular-weight polyethylene (UHMW) material. 13. The cover of claim 1, wherein the feet have a generally Z-shaped cross-sectional shape. 14. The cover of claim 1, wherein at least one of the rails includes a main body and a supplemental support member, wherein the supplemental support member comprises a support surface for the center plate, and wherein the main body comprises the support surface for the lid. 15. The cover of claim 14, wherein the supplemental support member extends about 1/3 of the length of the rail. 16. A lid for use with a cover for a refrigeration unit, the lid comprising: a lid plate having a top surface and a bottom surface;a plurality of feet coupled to the lid plate, and configured to rest on a support surface to raise the lid plate such that a gap is positioned under the bottom surface of the lid plate between the support surface and the lid plate;a filling element coupled to the bottom surface of the lid plate such that the filling element is positioned under the lid plate between the feet such that the filling element fills at least a portion of the gap, thereby restricting air flow through the gap, wherein the filling element is configured to fill less than or equal to about 75% of the gap between the bottom surface of the lid plate and the support surface. 17. A lid for use with a cover for a refrigeration unit, the lid comprising: a lid plate having a top surface and a bottom surface and an outer side extending between the top surface and the bottom surface; anda foot attached to the lid plate such that the foot moves with the lid plate, the foot comprising: a main portion extending generally horizontally and disposed under the bottom surface of the lid plate;an upper flange extending generally vertically upward from an outer side of the main portion of the foot, the upper flange disposed on the outer side of the lid plate; anda lower flange extending generally vertically downward from an inner side of the main portion of the foot such that the lower flange extends away from the bottom surface of the lid plate and is inset from the outer side of the lid plate. 18. The lid of claim 17, wherein the foot is positioned at a first corner of the lid plate, wherein the lid further comprises: a second foot positioned at a second corner of the lid plate;a third foot positioned at a third corner of the lid plate; anda fourth foot positioned at a fourth corner of the lid plate. 19. The lid of claim 17, further comprising: a gap under the lid plate, the gap having a height corresponding to a height of the main portion of the foot; anda filling element disposed under the lid plate, the filling element filling at least a portion of the gap, thereby restricting air flow through the gap.