发明授权
- 专利标题: Fail safe actuator
- 专利标题(中): 故障安全致动器
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申请号: US379068申请日: 1982-05-17
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公开(公告)号: US4507919A公开(公告)日: 1985-04-02
- 发明人: Russell G. Smith
- 申请人: Russell G. Smith
- 专利权人: Smith Russell G
- 当前专利权人: Smith Russell G
- 主分类号: F15B15/12
- IPC分类号: F15B15/12 ; F15B20/00 ; F15B1/06 ; F15B11/15 ; F15B13/042
摘要:
A fail-safe actuator mechanism has an actuator housing encapsulated within a tank which stores a pressurized fluid media. Ports of the actuator housing are put into selective fluid communication with both the interior and exterior of the encapsulating tank by a valve at selective pressures.
公开/授权文献
- US4992739A Continuity tester 公开/授权日:1991-02-12
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