Drain valve

Details Drain valve Drain valve

2008-05-27

2008-05-27

Lee, Kevin (Department: 3753)

Fluid handling

Processes

C137S062000, C137S843000, C137S517000

Reexamination Certificate

active

11343288

ABSTRACT:
A drain valve having a temperature responsive member that holds the drain valve in a water conserving mode when water is above freezing yet allows the drain valve to drain when the water is near freezing to prevent freeze damage to the irrigation system.

REFERENCES:
patent: 4471906 (1984-09-01), Noguchi et al.
patent: 4699321 (1987-10-01), Bivens et al.
patent: 4821954 (1989-04-01), Bowder
patent: 5163779 (1992-11-01), King, Sr.
patent: 5692535 (1997-12-01), Walters
patent: 6102127 (2000-08-01), Pierce
patent: 6427712 (2002-08-01), Ashurst
patent: 7104461 (2006-09-01), Restivo et al.

Affiliated with

Also associated with

Rating

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 Drain valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drain valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3912531