Differential pressure switch

Electricity: circuit makers and breakers – Fluid pressure – Diaphragm

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07855345

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.

REFERENCES:
patent: 2844678 (1958-07-01), Nielsen
patent: 3800205 (1974-03-01), Zalar
patent: 4898513 (1990-02-01), Hon
patent: 4990728 (1991-02-01), Joyce
patent: 5136129 (1992-08-01), Kaigler et al.
patent: 5234319 (1993-08-01), Wilder
patent: 5495079 (1996-02-01), Joyce
patent: 5562423 (1996-10-01), Orth et al.
patent: 5622477 (1997-04-01), Orth et al.
patent: 5708313 (1998-01-01), Bowes et al.
patent: 6149390 (2000-11-01), Fisher et al.
patent: 6461114 (2002-10-01), Lin
patent: 6474952 (2002-11-01), Fisher et al.
patent: 6601607 (2003-08-01), Pratt
patent: 6737597 (2004-05-01), Galpchian
patent: 2003/0049134 (2003-03-01), Leighton et al.
patent: 2006/0176000 (2006-08-01), Schulman et al.
patent: 2007/0098582 (2007-05-01), Schulman
patent: 198 05 138 (1999-12-01), None
patent: 2312950 (1997-12-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Differential pressure switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential pressure switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential pressure switch will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4189740

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.