Ronald D Hayes

US Patent:

20200103060, Apr 2, 2020

Filed:

Oct 1, 2018

Appl. No.:

16/148179

Inventors:

- Birmingham AL, US
Ronald Hayes - Trussville AL, US

International Classification:

F16L 19/00

Abstract:

A composite metal and polymer pipe coupling is provided. Embodiments include a coupling having a metal pipe body, and a rigid polymer liner affixed to and completely covering an inside surface of the pipe body. Opposite ends of the liner each have a circumferential raised end section extending toward a longitudinal axis of the pipe body. The liner also has a circumferential pipe buttress near a middle of the liner extending toward the longitudinal axis. An elastomeric gasket engages the liner adjacent an interior side of each of the raised end sections of the liner. The raised end sections are each configured to receive and hold the end of a pipe centered relative to the pipe body, such that its corresponding gasket seals the pipe end around an entire circumference of the pipe end when the pipe is inserted into the coupling until it contacts the pipe buttress.