Bradley S Gilson

US Patent:

7753065, Jul 13, 2010

Filed:

May 7, 2007

Appl. No.:

11/800961

Inventors:

Michael J. Bevins - Riverton UT, US
Bradley S. Gilson - Draper UT, US

Assignee:

TAP Security, LC - Draper UT

International Classification:

E03C 1/10
F17K 15/18

US Classification:

137 1, 137 1502, 137272, 137301, 251359

Abstract:

A hydrant backflow prevention system comprises a backflow prevention valve, operably coupleable to a hydrant to restrict passage of materials through the hydrant into a water supply feeding the hydrant. The backflow prevention valve is installable fluidly inline with the water supply at a location below which an upper dry barrel of the hydrant is coupled to a water delivery system. The backflow restriction valve is operable to substantially restrict backflow into the water supply when in a closed position, and allow flow of water through the hydrant when in the open position.