|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B62B-001/00 B62B-003/00 B62D-021/14 B62D-033/08 B62D-033/00 F16M-011/00 A47F-007/00 A47G-029/00|
|미국특허분류(USC)||280/638; 280/639; 280/654; 280/655; 280/043.15; 280/043.16; 248/127; 248/128; 248/129; 211/022; 211/071.01; 211/186; 211/187; 211/153; 211/190; 211/192; 211/193|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 13 인용 특허 : 25|
Disclosed is a lightweight caster assembly and modular shelf system for use on an existing collapsible foldable cart with four wheels.
I claim: 1. A cart and removable adaptable shelf apparatus comprising: (a) A cart with a telescoping frame and foldable handles rotatably connected to opposite ends of said frame; (b) At least one multi-level shelf system adapted to connect between said foldable handles, said multi-level shelf system operationally configured to expand or contract in concert with said telescoping frame, and wherein said multi-level shelf system is operationally configured to attach to said foldable handles of said telescoping frame at positions ranging from the top of sa...