Freezeproof sanitary water supply appliance

Details Freezeproof sanitary water supply appliance Freezeproof sanitary water supply appliance

1976-05-17

1978-06-27

Cohen, Irwin C.

Fluid handling

Hydrant type

Expansible chamber operated by valve actuator for draining...

137282, 137292, 137301, 137467, E03B 904

Patent

active

040968774

ABSTRACT:
A water supply control appliance adapted to be buried in soil beneath local frost level contains a chamber fitted with a piston which is spring-biased in opposition to inlet water pressure. Such pressure forces the piston to fully charged position at one end of the chamber whereupon a piston valve is opened to pass the water to outlet. Closing the supply valve releases pressure on the piston, permitting the piston to move in response to the spring bias. The piston movement pumps water below the piston out to drain and drains water from the outlet lines into the expanded chamber above the piston, safe from frost. Water in the drain line will, at the end of the piston travel, fall back into the chamber above the piston after piston travel is completed, when a piston ring seal spans a port to the drain line.

REFERENCES:
patent: 100389 (1870-03-01), Fort
patent: 137476 (1873-04-01), Paul
patent: 860424 (1907-07-01), Traxel
patent: 2630130 (1953-03-01), Murdock et al.
patent: 3770003 (1973-11-01), Uroshevich
patent: 3926207 (1975-12-01), Anderson

Affiliated with

Also associated with

Rating

Freezeproof sanitary water supply appliance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Freezeproof sanitary water supply appliance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Freezeproof sanitary water supply appliance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2299912