Pressure differential flow retardant valve

Details Pressure differential flow retardant valve Pressure differential flow retardant valve

1977-04-08

1978-10-03

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

137521, 13762427, F16K 1503

Patent

active

041178602

ABSTRACT:
The invention is a flow delay valve to be used in conjunction with fire fighting and attaches to the fire hydrant so that as the fire truck proceeds to unroll hose on the way to the fire site the hose is filled slowly due to the action of the delay valve, permitting the fire truck to proceed unhindered by full hose pressure but without requiring the stationing of a fireman at the hydrant to turn the hydrant on after the fire truck has arrived at the site as the valve fully opens automatically upon the hose becoming filled to permit unobstructed water flow.

REFERENCES:
patent: 572464 (1896-12-01), Woods
patent: 810746 (1906-01-01), Hadley et al.
patent: 827827 (1906-08-01), Starr
patent: 876066 (1908-01-01), Klever
patent: 1193958 (1916-08-01), Youngs
patent: 2846181 (1958-08-01), Orelind et al.
patent: 3244194 (1966-04-01), Henry
patent: 3293389 (1966-12-01), Bhicknapahari

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