Automatic flow shut-off system

Details Automatic flow shut-off system Automatic flow shut-off system

2008-08-20

2011-11-22

Rivell, John (Department: 3753)

Fluid handling

With leakage or drip collecting

C137S067000, C137S068110, C251S074000, C251S067000, C122S504000, C122S507000, C122S014300

Reexamination Certificate

active

08061380

ABSTRACT:
A tripper unit for actuating a device (e.g. valve-closing actuator) upon contact with water. Basically, the tripper unit is comprised of a housing having a replaceable cartridge therein which, in turn, is wrapped with an adsorbent paper which prevents a plunger from moving downward. When a leak occurs, water will flow into the housing and into contact with the absorbent paper which will quickly disintegrate to allow a compression spring in said housing to move the plunger downward to thereby actuate the unit.

REFERENCES:
patent: 2798503 (1957-07-01), Carver et al.
patent: 3920031 (1975-11-01), Maxfield
patent: 4305420 (1981-12-01), Nussdorf
patent: 4381710 (1983-05-01), Watterback
patent: 4696319 (1987-09-01), Gant
patent: 4930934 (1990-06-01), Adkins
patent: 5771916 (1998-06-01), Armenia et al.
patent: 6024116 (2000-02-01), Almberg et al.
patent: 6117311 (2000-09-01), Stockhowe et al.
patent: 6253785 (2001-07-01), Shumake et al.
patent: 6336469 (2002-01-01), Nixon et al.
patent: 6354322 (2002-03-01), Clark
patent: 6543471 (2003-04-01), Carroll
patent: 6899122 (2005-05-01), Mele
patent: 7082959 (2006-08-01), Franklin
patent: 7424896 (2008-09-01), Martin et al.
patent: 7562673 (2009-07-01), Martin et al.
patent: 7703476 (2010-04-01), Carroll
patent: 2004/0081804 (2004-04-01), Basler et al.

Affiliated with

Also associated with

Rating

Automatic flow shut-off system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic flow shut-off system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic flow shut-off system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4300512