|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/037; 280/DIG.003; 190/018.A; 016/044|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 33 인용 특허 : 18|
Methods and wheel assemblies for supporting a bag that is tilted and pulled along a surface. A wheel housing, a strut member, a spring member, and a wheel member are provided. The wheel housing is rigidly attached to a bottom edge of the bag. The strut member is mounted within the housing for movement between first and second positions. The spring member is arranged between the wheel housing and the strut member to oppose movement of the strut member from the first position to the second position. The wheel member is rotatably attached to the strut membe...
1. A wheel assembly for supporting a bag that is tilted and pulled along a surface with a bottom edge of the bag adjacent to the surface, the wheel assembly comprising:a wheel housing adapted to be rigidly attached to the bottom edge of the bag;a strut member arranged within the housing for movement between first and second positions, where the strut member defines a longitudinal axis and comprisesfirst and second elongate pivot flanges,a spring plate that spaces the first and second pivot flanges from each other such that the pivot flanges are spaced fr...