Patent ID: 6994106
Filing Date: 2006-02-07
Classification: E03B,F16K,Y10T

Abstract:
1. A locking device to inhibit unauthorized operation of a fire hydrant, said locking device comprising: a cap having an impact resistant body, said cap body including a sidewall connected to a top wall with an inner surface of said sidewall and a bottom surface of said top wall defining an inner opening, a passageway in said sidewall extending inward from an opening in said sidewall to intersect tangentially with said sidewall inner surface and form a slot in said sidewall inner surface, and a locking plug having a body disposable in said cap inner opening to form a longitudinal operative fit therewith, an inner opening prepared to receive an actuating nut of said hydrant and form a secure operative fit therewith, a groove in a sidewall of said plug body with said groove alignable with said cap sidewall slot, and an upper end of said plug prepared for rotational engagement by a tool, and a locking pin insertable in said cap passageway to locate in said cap sidewall slot and said locking plug groove and form a longitudinal locking fit between said cap and said locking plug, wherein said locking fit inhibits unauthorized operation of a fire hydrant upon said locking plug being secured to said hydrant actuating nut and said cap being secured to said locking plug by said locking pin.