发明名称 |
Methods of and apparatus for controlling hydraulic equipment |
摘要 |
A control for hydraulic equipment including a pressure fluid feed and a pressure fluid return, includes a spool valve arranged to sense the pressure of the pressure fluid in the return and to connect pressure fluid in the feed to exhaust should the sensed pressure fall below a preselected level.
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申请公布号 |
US4041841(A) |
申请公布日期 |
1977.08.16 |
申请号 |
US19760657878 |
申请日期 |
1976.02.13 |
申请人 |
COAL INDUSTRY (PATENTS) LTD. |
发明人 |
HASKEW, FRANCIS ANTHONY |
分类号 |
F15B13/02;(IPC1-7):G05D16/00;F15B11/08 |
主分类号 |
F15B13/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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