Stackable cart assembly
Patent 5785328 Issued on July 28, 1998. Estimated Expiration Date: 
May 3, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 3, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1912847 Hamper frame Cart Patent #: 5611554 InventorAssigneeApplicationNo. 643166 filed on 05/03/1996US Classes:280/33.998, Vertically nestable or confined206/821, STACKING MEMBER414/788.2Stacking tapered or nestable articlesExaminersPrimary: Bartuska, F. J.Attorney, Agent or FirmInternational ClassB65D 021/036AbstractA stacking member for stacking one hamper cart on another hamper cart is provided that is easily installed, removed, and stored nested with other like stacking members. The stacking member is strong, yet relatively light weight, and functions, among other things, (1) to distribute the weight of the stacked cart evenly and to a major portion of the length of each sides and ends of the upper frame of the supporting cart, (2) index itself for quick installation in the proper position on the upper frame of the supporting cart, (3) orient and index the supported cart on the stacking member, (4) secure the stacked cart on the stacking member to prevent sliding or movement during transport by pinching or gripping the shifting, fixed axis center caster wheels, and (5) allow imprecise transverse placement of the stacked cart on the stacking member.Field of SearchReceptacle or occupant seating bodyStable vehicles, handle-propelled Vertically nestable or confined Nesting vehicles Attachments or accessories Load supporting frame Stacking Tiering SYNTHETIC PLASTIC INDUSTRIAL PLATFORM (E.G., PALLET, ETC.) STRUCTURAL FEATURES FOR VERTICAL STACKING, I.E., SIMILAR RECEPTACLES Having vertical projecting element or recess for interlock STACKING MEMBER Stacking tapered or nestable articles | |
