Delayed release valve for a fire hydrant

Details Delayed release valve for a fire hydrant Delayed release valve for a fire hydrant

1975-12-01

1977-05-10

Cline, William R.

Valves and valve actuation

Biased trip

Mechanical movement trip actuation

251 68, 251303, 251 82, 137559, 137527, F16K 3144

Patent

active

040224210

ABSTRACT:
The invention is a delayed release valve for a fire hydrant which permits the fireman to couple a fire hose with the valve in place to a fire hydrant, the valve being released subsequent to the coupling operation either by a timer which is set at the time the hose is attached, or by a radio-controlled servo mechanism so that the fireman who makes the hose attachment may proceed to the site of the fire and need not wait at the hydrant until on-site firemen are ready for water.

REFERENCES:
patent: 1852999 (1932-04-01), Griffith
patent: 1912843 (1933-06-01), Holmes
patent: 2342589 (1944-02-01), Lewis
patent: 2542080 (1951-02-01), Herrbold
patent: 3372899 (1968-03-01), McPherson
patent: 3590862 (1971-07-01), DeGraaf
patent: 3613070 (1971-10-01), Jones et al.
patent: 3782413 (1974-01-01), Chacko
patent: 3799198 (1972-12-01), Kijimoto

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