发明授权
- 专利标题： Sewer line restriction alarm placed in clean out plug
- 专利标题（中）： 下水道限位报警放在清洁插头中
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申请号： US385587申请日： 1989-07-25
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公开(公告)号： US5006833A公开(公告)日： 1991-04-09
- 发明人: Edward D. Marlowe , Christian P. Marlowe
- 申请人： Edward D. Marlowe , Christian P. Marlowe
- 申请人地址： CT Collinsville
- 专利权人： CDF, Inc.
- 当前专利权人： CDF, Inc.
- 当前专利权人地址： CT Collinsville
- 主分类号： E03F7/00
- IPC分类号： E03F7/00 ; G01L19/12 ; G01P13/00
摘要：
A restricted flow alert for use in the access arm of the main clean-out plug location in a commercial or residential sewage system includes a diaphragm which moves in response to the presence of to close a switch and actuate an alarm. A pneumatic time delay prevents the alarm from being actuated in response to transient flow conditions in the sewer line and allows operation of the alarm at any physical orientation relative to the axis of the body of the restricted flow alert.
公开/授权文献
- US5662909A Potentiation of immunogenic response 公开/授权日：1997-09-02
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