A. Y. Mcdonald Mfg. Co.

Thomas W Hast

Ryan F Larson

Sebastian Yaklin

Compression fittings for pipes having a range of diameters, including a support body with a central section between end sections, the central section having a smaller diameter than the end sections, with a transition surface between the central section and each end section. A gasket fits over a pipe and engages one of the support body end section end surfaces. A fitting nut is movable axially over the support body to draw the support body and the gasket together in the axial direction and bias the gasket radially inward against the pipe. A grip ring encircles the pipe at one gasket end and has a surface engaging the fitting nut whereby the fitting nut biases the grip ring radially inwardly toward the pipe. An insert adapter has a hub with a radially extending flange may block the other gasket end to load the gasket between its axial ends.

Compression pipe fitting with wide range grip rings

A coupling () is provided to create a connection between two tubes () and includes a first coupling body () having an externally threaded end (), and a second coupling body () has an internally threaded end () operably engaged with the externally threaded end (). A first deformable ring () is located in the first coupling body (). A second deformable ring () is located in the second coupling body (). A sleeve () is located in the first and second coupling bodies () extending between the first and second deformable rings (). The coupling () has a free condition wherein tubes () can be inserted into the coupling (), and a connecting condition wherein the first and second deformable rings () are engaged with the sleeve () and the first and second coupling bodies () to be deformed into engagement with any tubes () that have been inserted into the coupling ().

Growing community of inventors

Dubuque, IA, United States of America

Thomas W Hast