Fire hydrant cap and actuating tool therefor

Details Fire hydrant cap and actuating tool therefor Fire hydrant cap and actuating tool therefor

1990-12-04

1991-07-23

Walton, George L.

Fluid handling

Hydrant type

With casing

7138, 81125, 8117615, 137381, 137800, 184 5, 220 85P, 220284, 403 19, 411405, 411432, 411911, F16K 3510, E03B 906

Patent

active

050335014

ABSTRACT:
A fire hydrant cap and actuating tool for use therewith provide enhanced security for fire hydrants and increased safety when using the tool. The cap is forged of 8620 carbon steel; is provided with an internal steel lock washer of cadmium plate steel, and includes thereon a forged, external slip ring of 8620 carbon steel with lubrication between the slip ring and cap. The tool which is used in combination with the cap includes a gripper which fits under the slip ring to prevent the tool from slipping, a spanner wrench and a hexagonal socket with a screw for gripping rounded-off valve stems.

REFERENCES:
patent: 609324 (1898-08-01), Atkinson
patent: 1136755 (1915-04-01), Baker
patent: 2514799 (1950-07-01), Rubertino et al.
patent: 3872662 (1975-03-01), Atwood et al.
patent: 3929152 (1975-12-01), Graham
patent: 3935877 (1976-02-01), Franceschi
patent: 4182361 (1980-01-01), Oakey
patent: 4526193 (1985-07-01), Drach
patent: 4566481 (1986-01-01), Leopold, Jr. et al.
patent: 4618299 (1986-10-01), Bainbridge et al.
patent: 4651771 (1987-03-01), Borenstein et al.

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