|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/005.28; 280/005.2; 280/638|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 1 인용 특허 : 6|
A cart that can be used as a hand truck for carrying heavy loads up and down a staircase is disclosed. The design has means for accommodating in any size of staircase steps and the small compact dimensions of the cart make it useful for around the corner maneuvering. The cart is divided into two parts that separates while doing the movements to step up or down thru the stairways then it unites together to repeat the cycle. Square rods on the side's holds and support the two parts of the cart and give strength to hold the heavy loads. It uses expansions s...
1. A cart comprising: a platform formed from first and second platform rods interconnected with a plurality of plates;a handle pivotably mounted on a first end of the platform;an end plate extending orthogonally from a second, opposite end of the platform;a leg portion extending from the platform in a direction opposite that of the end plate;first and second extension rods adapted to fit inside the first and second platform rods, the first and second extension rods adapted to extend from the second, opposite end of the platform;an angular member extendin...