|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/8 ; 280/10 ; 280/4724 ; 280/659|
|발명자 / 주소|
|인용정보||피인용 횟수 : 11 인용 특허 : 3|
A cart for use on a bare surface or a snow covered surface provided with a pair of wheels journaled at opposite ends of an axle to engage the bare surface and a pair of depending skis pivotally mounted between the wheels on the axle for engaging a snow covered surface, the radius of the wheels being between one-half and three inches greater than the distance between the axle and the load carrying surface of the skis.
A cart for use on a bare or a snow covered surface comprising, in combination, a cart having a supporting frame, an elongated axle mounted on the frame and below the frame, said axle having opposite end portions extending outwardly from the frame, a pair of wheels, one wheel of said pair being mounted on each end portion of the axle, said wheels being rotatable with respect to the frame and having perimeters adapted to ride on the bare surface and sink into a snow covered surface, an elongated ski having a substantially flat bottom surface adapted to rid...