发明授权
- 专利标题： Jack and components therefor
- 专利标题（中）： 杰克及其组件
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申请号： US568046申请日： 1990-08-16
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公开(公告)号： US5002258A公开(公告)日： 1991-03-26
- 发明人: Rudolf Gruber
- 申请人： Rudolf Gruber
- 申请人地址： CAX Markham
- 专利权人： Multimatic Inc.
- 当前专利权人： Multimatic Inc.
- 当前专利权人地址： CAX Markham
- 优先权： CAX558752 19880211
- 主分类号： B66F3/12
- IPC分类号： B66F3/12
摘要：
An improved jack with overload prevention including a lead screw having a driven end and an upstanding integral boss proximate the driven end, the driven end comprising a body abutting the upstanding boss and including an opening therethrough for receiving the end of the lead screw, the body carrying slots, grooves or recesses radiating from the opening and being in communication with the opening and carrying material from the lead screw displaced into the grooves thereby securing the body to the lead screw.
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