Freeze control and drain valve

Details Freeze control and drain valve Freeze control and drain valve

1991-08-19

1992-05-19

Walton, George L.

Fluid handling

Freeze condition responsive safety systems

Low temperature responsive drains

137238, 137312, 137392, 137549, 137554, 137558, 1376242, 1374875, 200 6104, 210223, 210429, 210456, 237 80, 307118, 340605, 340620, 361118, E03B 712, F16K 3164

Patent

active

051138921

ABSTRACT:
A pressure-activated diaphragm valve which when installed in the main up-stream side of a pressurized line, responds to signals from a control unit to shut off the main supply line and at the same time, opens a drain port on the down-stream side of the valve. When used as a freeze protection system, the main water line is shut off and the drain port opened before the freeze point, thereby, eliminating water damage from frozen, broken pipes. The valve also is self-cleaning and has a magnetic plug to remove and keep metallic particles out of the control chamber and the control unit has automatic and manual modes.

REFERENCES:
patent: 1003307 (1911-09-01), Walker
patent: 1137405 (1967-09-01), Jennings
patent: 1875513 (1932-09-01), Smith
patent: 2073991 (1937-03-01), Koser
patent: 2074640 (1980-04-01), Hibbert
patent: 2611383 (1952-09-01), Tally
patent: 2636506 (1953-04-01), St. Clair
patent: 2654395 (1953-10-01), Kaye
patent: 2716418 (1950-12-01), Borgerd
patent: 2922616 (1960-01-01), Budde
patent: 3372807 (1968-03-01), Barnard
patent: 3677826 (1970-12-01), Pointout et al.
patent: 3834539 (1974-09-01), Thompson
patent: 3856260 (1974-12-01), Giordana
patent: 3967808 (1976-07-01), Lieding
patent: 4081171 (1978-03-01), Morgan et al.
patent: 4099701 (1978-07-01), Berger
patent: 4108419 (1978-08-01), Sturman et al.
patent: 4135696 (1979-01-01), Saarem et al.
patent: 4180088 (1979-12-01), Mallett
patent: 4206901 (1980-06-01), Williams
patent: 4216554 (1980-08-01), Gluecker et al.
patent: 4280478 (1981-07-01), Duval et al.
patent: 4324268 (1982-04-01), Jacobson
patent: 4360037 (1982-11-01), Kendall
patent: 4502958 (1985-03-01), Saski
patent: 4508136 (1985-04-01), Kah, Jr.
patent: 4520836 (1985-06-01), Hutter, III
patent: 4543983 (1985-08-01), Pauliukonis
patent: 4635668 (1987-01-01), Netter
patent: 4657038 (1987-04-01), Lyons
patent: 4659063 (1987-04-01), Veillette et al.
patent: 4730637 (1988-03-01), White
patent: 4753212 (1988-06-01), Miyaki et al.
patent: 4766925 (1988-08-01), Frantz
patent: 4773445 (1988-09-01), Visket
patent: 4783266 (1988-11-01), Titch et al.
patent: 4817666 (1989-04-01), Sanville
patent: 4835426 (1989-05-01), Henville
patent: 4845472 (1989-07-01), Gordon et al.
patent: 4865076 (1989-09-01), Newcombe et al.
patent: 4944253 (1990-07-01), Bellofatto

Affiliated with

Also associated with

Rating

Freeze control and drain valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2412705