Fire Hydrant Operating Nut and Method for Lubricating the Operating Nut
AssigneeSigelock Systems, L.L.C.
InventorGeorge Sigelakis
Life of this patent
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Abstract
A method for delivering water through a fire hydrant is disclosed and includes unlocking a sprinkler cap control lock on the fire hydrant, removing the sprinkler cap control lock to access an operating nut of the fire hydrant and activating the operating nut to deliver water through a plurality of sprinkler ports in at least one of a plurality of caps on the fire hydrant. Also disclosed are fire hydrant with a lubricant channel and a method of lubricating a fire hydrant operation nut. Also disclosed is a fire hydrant that does not need a lubricant disposed between the operation nut and the fire hydrant body due to an operating nut sleeve being disposed between the operation nut and the fire hydrant body.
Claims17
A method for delivering water through a fire hydrant comprising:
- unlocking a sprinkler cap control lock on the fire hydrant;
- removing the sprinkler cap control lock to access an operating nut of the fire hydrant;
- and
- activating the operating nut to deliver water through a plurality of sprinkler ports in at least one of a plurality of caps on the fire hydrant.
A fire hydrant comprising:
- a fire hydrant body;
- and
- an operating nut coupled to an operating stem, the operating nut including:
- a lubricant port;
- a top chamber;
- and
- one or more side ports in fluid communication with the top chamber and a lubricant channel between the operating nut and the fire hydrant body.
A method of lubricating a fire hydrant operating nut comprising:
- accessing a lubricant port in the operating nut;
- connecting a lubricant source to the lubricant port;
- delivering pressurized lubricant through the lubricant port and into a top chamber inside the operating nut and through the top chamber to at least one side port, the at least one side port providing fluid communication between the top chamber and a lubricant channel between the operating nut and a fire hydrant body.
A fire hydrant valve control device comprising:
- a valve top plate;
- a valve bottom plate;
- a seat valve seal secured between the valve bottom plate and a bottom surface of the valve top plate, the seat valve seal having a sealing face that corresponds to a valve seat, wherein the seat valve seal is formed of a resilient material from one of a group consisting of an acetal polyoxymethylene copolymer, a polyethelyne oxide, a poly-dimethyl acetal resin, and a ultra-high-molecular-weight polyethylene.
A locking fire hydrant with a valve access channel drain comprising:
- a locking cap mounted on the fire hydrant, the locking cap being configured to close off a main outlet port and a valve access channel;
- and
- at least one drain channel in the valve access channel.
A fire hydrant standpipe valve control device comprising:
- a valve seat rubber formed from at least one of an acetal resin (Delrin) material and a polyethylene terephthalate (PET) material and an ultra high molecular weight (UHMW) polyethylene material.
A fire hydrant comprising:
- a fire hydrant body;
- an operating nut coupled to an operating stem;
- and
- an operating nut sleeve disposed between the operating nut and the fire hydrant body, wherein the operating nut sleeve is formed from a resilient material from one of a group consisting of an acetal polyoxymethylene copolymer, a polyethelyne oxide, a poly-dimethyl acetal resin, and a ultra-high-molecular-weight polyethylene, the operating nut sleeve acting as a lubricant between the operating nut and the fire hydrant body such that the operating nut does not need a lubricant disposed between the operating nut and the fire hydrant body.
Dependencies are inferred from the claim text.