Tamper proof backflow prevention assembly

Details Tamper proof backflow prevention assembly Tamper proof backflow prevention assembly

1989-08-21

1990-08-07

Michalsky, Gerald A.

Fluid handling

Back flow prevention by vacuum breaking

Air vent in liquid flow line

1373825, F16K 2400

Patent

active

049459406

ABSTRACT:
A testable backflow prevention assembly provided with a means for preventing unauthorized access to water within the assembly throughout the differential pressure gradient of the assembly; comprising: a means for locking the valves of the test cocks, a means for lockably securing the test cocks to the backflow prevention assembly body, and a means for preventing cessation of water pressure within the backflow prevention assembly.

REFERENCES:
patent: 275727 (1883-04-01), Sommer
patent: 795027 (1905-07-01), Connell
patent: 1278813 (1918-09-01), Weaver
patent: 1322197 (1919-11-01), Molinari
patent: 3173439 (1965-03-01), Griswold et al.

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