Fire hydrant locking device

Details Fire hydrant locking device Fire hydrant locking device

1976-06-16

1977-07-05

Cline, William R.

Fluid handling

Hydrant type

With casing

81 90C, 137382, F16K 3506

Patent

active

040333728

ABSTRACT:
A fire hydrant locking device is disclosed for preventing undesirable tampering, such as turning on the water release at the fire hydrant. The device consists of an imperforate dome encompassing and rotatably attached to a spider which in turn is secured to a known type of fire hydrant. Inside of the apex of the dome is a recess snugly fitting the nut which controls the opening and closing of the water supply through the hydrant. The dome can be rotated, thus turning on the water, only by use of a special wrench which fits into receiving recesses formed on the outer face of the dome.

REFERENCES:
patent: 2118233 (1938-05-01), Ruggio
patent: 3929152 (1975-12-01), Graham
patent: 3935877 (1976-02-01), Franceschi

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