Tamperproof construction for hydrant actuating nut

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4936336
SERIAL NO

07428913

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A tamperproof construction for preventing actuation of the actuating nut of a fire hydrant comprising a nut actuating body for receiving the hydrant nut in turning relationship, set screws locking the nut actuating body to the actuating nut, a shroud permanently secured on the nut actuating body by means of a snap ring so that it covers the set screws but is rotatable on the nut actuating body, a bore in the shroud for permitting selective access to the set screws, a key-operated plug in the bore, a cap permanently and rotatably mounted on an end of the nut actuating body which protrudes through an opening in the shroud, and a limited axial portion of the nut actuating body exposed between the cap and shroud for receiving a specialized wrench.

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Patent Owner(s)

Patent OwnerAddress
MCGARD LLC (F/K/A DD&D-MI LLC)3875 CALIFORNIA ROAD ORCHARD PARK NY 14127

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Erwin, John W Orchard Park, NY 1 33
McCauley, Durham S Boston, NY 6 133
Waite, John K Tonawanda, NY 1 33

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