发明授权
- 专利标题： Control device and method of making the same
- 专利标题（中）： 控制装置及其制作方法
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申请号： US039792申请日： 1979-05-17
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公开(公告)号： US4290441A公开(公告)日： 1981-09-22
- 发明人: Douglas R. Scott , Larry V. Price
- 申请人： Douglas R. Scott , Larry V. Price
- 申请人地址： VA Richmond
- 专利权人： RobertShaw Controls Company
- 当前专利权人： RobertShaw Controls Company
- 当前专利权人地址： VA Richmond
- 主分类号： F15C3/04
- IPC分类号： F15C3/04 ; F15C3/14 ; G05D16/00 ; F15B5/00
摘要：
A control device having a housing provided with a main lever pivotally mounted thereto by a pivot structure and being operatively associated with a flapper to move the same relative to a leakport in relation to pivotal movement of the main lever. The device has a feedback diaphragm operatively associated with a feedback lever that is pivotally mounted to the housing and is operatively associated with the main lever to cause pivoting thereof upon pivoting movement of the feedback lever by the feedback diaphragm. The device has means for selectively changing the device to be either direct acting or reverse acting.
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