|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/8 ; 280/714 ; 280/14 ; 280/16|
|발명자 / 주소|
|인용정보||피인용 횟수 : 15 인용 특허 : 2|
A front support member is pivotally affixed to the undersurface of a body-supporting board close to the front and equidistant from the sides thereof. A pair of rear support members are affixed to the undersurface of the board in spaced parallel relation close to the rear and equidistant from the sides thereof. Each of the support members comprises a block having a bore formed therethrough spaced from and parallel to the undersurface of the board. A front ski member and a pair of rear ski members have spaced ears with coaxial bores formed therethrough. Th...
A convertible sled for use on surfaces with high coefficients of friction as well as surfaces with low coefficients of friction, said sled comprising a body-supporting board having an oversurface for supporting the body of a user and an undersurface, said board having sides, a front, and a spaced opposite rear; a plate affixed to the undersurface of the board close to the front and equidistant from the sides thereof; a front support member; a pivot pin pivotally coupling the front support member to the plate; a bearing interposed between the adjacent sur...