|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/033.991; 280/033.997; 280/033.998; 280/079.11; 280/043.12; 206/509; 206/505|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 20 인용 특허 : 16|
A dolly and a tray and dolly assembly are provided. The dolly has a floor with upper and lower surfaces and with one or more features such that when the tray floor is received on the dolly floor, the feature interlocks the tray with the dolly. One feature is a plurality of protruding members extending upwardly from the dolly floor upper surface into openings in the tray floor to interlock the tray with the dolly. Another features is the presence of dolly side wall locking portions configured to abut and mate with corresponding tray side wall bottom locki...
What is claimed is: 1. A tray and dolly assembly comprising: a dolly having a floor with upper and lower surfaces and a plurality of wheels extending downwardly from the lower surface; and a tray having a floor with upper and lower surfaces and with a plurality of openings, the tray having a pair of opposed side walls wherein each side wall has a bottom locking portion and a top locking portion, each top locking portion including a plurality of inwardly, upwardly opening recesses and inwardly, upwardly directed protrusions, each bottom locking portion i...