Invention Grant
- Patent Title: Differential pressure switch
- Patent Title (中): 差压开关
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Application No.: US11985883Application Date: 2007-11-19
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Publication No.: US07855345B2Publication Date: 2010-12-21
- Inventor: James E. Stevens , Geoffrey M. Stevens , Bill Irwin , Leung Wai Tat Raymond
- Applicant: James E. Stevens , Geoffrey M. Stevens , Bill Irwin , Leung Wai Tat Raymond
- Applicant Address: US IL Elk Grove
- Assignee: Stevens Pump Company
- Current Assignee: Stevens Pump Company
- Current Assignee Address: US IL Elk Grove
- Agency: McDonald Hopkins LLC
- Agent Michael J. Femal
- Main IPC: H01H35/26
- IPC: H01H35/26
Abstract:
The invention relates to a field adjustable pressure switch that incorporates a manually adjustable differential to set the pressure level for the trip point for the pressure switch used in conjunction with a submersible sump pump system requiring trip levels corresponding to the desired water level in the sump well for operation of the pump motor.
Public/Granted literature
- US20090129940A1 Differential pressure switch Public/Granted day:2009-05-21
Information query
