发明授权
- 专利标题: Overload protection system for multi-speed machines
- 专利标题(中): 多速机超载保护系统
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申请号: US41072973申请日: 1973-10-29
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公开(公告)号: US3915034A公开(公告)日: 1975-10-28
- 发明人: WARD JAMES E
- 申请人: SIERRA DRILLING EQUIPMENT COMP
- 专利权人: Sierra Drilling Equipment Comp
- 当前专利权人: Sierra Drilling Equipment Comp
- 优先权: US41072973 1973-10-29
- 主分类号: B23Q5/14
- IPC分类号: B23Q5/14 ; B23Q11/04 ; B23Q11/12 ; F16D59/02 ; F16H35/10 ; F16H37/02 ; E21C1/04
摘要:
An improved overload protection system for multi-speed machines is described which prevents damage to a primary source of mechanical energy and to the elements coupling such source to a mechanical load when that load exceeds tolerable operating limits for any selected machine speed.
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