Underground valve anti-freeeze device

Details Underground valve anti-freeeze device Underground valve anti-freeeze device

1975-06-24

1976-10-05

Cohan, Alan

Fluid handling

Hydrant type

Protection against freezing

251214, E03B 908

Patent

active

039838960

ABSTRACT:
An underground valve has an operating rod extending above the ground which may be rotated to shut the valve off or turn the valve on. Difficulty with freezing prevents the valve operation at certain times during the winter months and by having the rod located within an external protective tube and sealed therein by a cylindrical element which is rotatable with the rod relative to the tube, whereby the operating rod for the valve can always be rotated since no ground water can get into the tube which extends below the frost line and above the ground.

REFERENCES:
patent: 724741 (1903-04-01), Sandbo
patent: 2176399 (1939-10-01), Garrett
patent: 2688976 (1954-09-01), Baker

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