Patent ID: 8770220

Claim:
A fire hydrant locking device for use on a hydrant operating nut comprising: an extension having a first connector and a second connector, said extension having a staple post extending vertically from said extension, wherein said staple post is rotatably connected to said extension, said staple post includes a downward facing opening at a lower end of said staple post, one or more threaded bores intersect said downward facing opening of said staple post; wherein said first connector is a actuator nut positioned at an upper end of said extension, wherein said actuator nut includes an upwardly extending pin, wherein said pin includes a circumferential groove, and wherein said staple post extends vertically from said actuator nut at said extension upper end and is disposed over said pin such that said downward facing opening of said staple post receives said pin, and one or more set screws extend inwardly within each of said one or more threaded bores of said staple post and inserts into said circumferential groove of said pin creating an interference fit between said set screw and said circumferential groove allowing said staple post to rotate relative to said actuator nut while limiting axial movement therebetween; wherein said second connector includes a downwardly facing inner opening at a lower end of said extension, wherein said inner opening is a complementary shape corresponding to a standard hydrant operating nut, and a plurality of threaded bores intersect said inner opening wherein a set screw within each one of said plurality of threaded bores are designed to be operably tightened into a compressive engagement against said hydrant operating nut received within said inner opening; a housing having a top opening therein, wherein said housing being capable of being disposed over said extension thereby said staple post extends through said top opening of said housing; and said housing interacting with said extension between a locked configuration and an unlocked configuration, wherein said housing may be axially removed from said extension when in said unlocked configuration, and wherein said housing rotates relative to said extension, said staple post rotates relative to said extension and said housing, and said housing may not be axially removed from said extension when said housing is in said locked configuration, and said housing is circumferentially disposed over both of said one or more set screws within said staple post and said set screws of said second connector when said housing is in said locked configuration to make inaccessible to unauthorized access.