Frost-proof fire hydrant

Details Frost-proof fire hydrant Frost-proof fire hydrant

1979-07-02

1981-12-29

Cohan, Alan

Fluid handling

Hydrant type

Valve actuator outside riser

137304, 251116, 251291, E03B 902

Patent

active

043077463

ABSTRACT:
A frost-proof fire hydrant of the type wherein the valve is biased towards its open position by the fluid pressure in the shoe. The fire hydrant includes improved means disposed in the bonnet and cooperating with the valve stem for maintaining the valve in the closed position against the water pressure in the shoe.

REFERENCES:
patent: 633228 (1899-09-01), Cholodkowsky
patent: 1134415 (1915-04-01), Peerstone
patent: 3532108 (1970-10-01), Sullivan
patent: 3532109 (1970-10-01), Smith

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