United States Pipe and Foundry Company, LLC

American Cast Iron Pipe Company

Harold Kennedy, Jr

Robert M Graham

A fire hydrant nozzle assembly which permits a bronze fire hydrant nozzle to be readily and simply attached to a cast iron hydrant barrel without the use of lead caulking, screw threads, or other methods generally requiring machining. Un-intentional removal of the bronze nozzle as a result of the application of relatively high torque typically required to remove a protective cap is effectively prevented. To provide these features, a bronze nozzle member is retained within a hydrant boss member by means of a bayonet type or breech lock type mechanism involving cooperating lugs, and a resilient seal such as an O-ring is provided. For locking the nozzle member in its installed position, a pin element passes through a pair of corresponding apertures in confronting surfaces of the boss and nozzle members. The installed position is positively defined by respective locating engagement surfaces carried by the boss and nozzle members, which surfaces serve to limit rotation. The corresponding apertures can always be aligned even though they are pre-formed or pre-drilled. Preferably, the locating engagement surfaces are configured and positioned such that locking rotation of the nozzle following insertion into the boss occurs in a direction opposite to the direction of the threads on the outlet end of the nozzle such that when the nozzle cap is removed the locating engagement surfaces resist the torque involved.

Fire hydrant nozzle assembly

A pipe hanger for hanging pipe lines joined with a coupling which employs a sleeve type gasket encircled and clamped with a flexible metal band and which utilizes bolts to provide the clamping force. The hanger strip is so constructed that it allows use of the clamping force to force the vertical leg of the hanger strip against the gasket, thus creating pre-compression of the gasket at this critical location.

Hanger for pipe

A coupling for joining the plain ends of pipe; specifically, plain ended, cast iron soil pipe or plastic drain, waste and vent piping. The coupling is particularly adapted to ease of construction and yet furnishes the ability to join and seal pipe and fittings of a given nominal diameter over the full range of their tolerances with excellent rigidity.

Growing community of inventors

Birmingham, AL, United States of America

Harold Kennedy, Jr