|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 3 인용 특허 : 12|
An electric dolly system for transporting an object up and down stairs having a base platform connected to a bottom end of support rails, a handle at a top end and a pair of wheels at the bottom end, a track belt wrapped around a first and second rotator component adapted to rotate around the rotator components like a conveyor belt using a motor, the first rotator component is connected to the support rails via a first extension arm and the second rotator component is connected to the support rails via a second extension arm, the first extension arm is p...
1. An electric dolly system (100) for transporting an object up and down stairs (102), said system (100) comprising: (a) a dolly (110) comprising a base platform (112) connected to a bottom end of support rails (114), a handle (116) disposed at a top end of the support rails (114), and a pair of wheels (118) disposed at an intersection of the base platform (112) and the bottom end of the support rails (114);(b) a track belt (120) wrapped around a first rotator component (130a) and a second rotator component (130b), the track belt (120) is adapted to rota...