发明授权
- 专利标题: Two wheel skating device
- 专利标题(中): 两轮滑冰装置
-
申请号: US507736申请日: 1983-06-27
-
公开(公告)号: US4541643A公开(公告)日: 1985-09-17
- 发明人: Ivan Pavincic
- 申请人: Ivan Pavincic
- 专利权人: Ivan Pavincic
- 当前专利权人: Ivan Pavincic
- 主分类号: A63C17/00
- IPC分类号: A63C17/00 ; A63C17/14
摘要:
The two wheel skating device of the present invention contains two large size wheels with each over four inches in diameter. The wheels are symmetrically arranged on opposite sides of a frame which accommodates a skater's shoe. The wheels are rotationally mounted on axles coaxially extending from opposite sides of a swinging arm which is pivotally connected to the frame. Each wheel is rotationally mounted through a wheel assembly including unidirectional needle bearings for rotation in only one direction.
公开/授权文献
- US5607281A Transfer device in a press 公开/授权日:1997-03-04
信息查询