Structure for pipe fittings

Details Structure for pipe fittings Structure for pipe fittings

1987-12-07

1988-12-20

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285150, 285348, 285351, 285356, F16L 3500

Patent

active

047921609

ABSTRACT:
An improved structure for a metal pipe fittings. Each passage hole of the body of a pipe fitting, such as an elbow, a tee, a cross etc., is provided with a female thread which a male-threaded ring screws in with tightly to press a metal ring and several gaskets abutting against one another around a pipe to be united. The tight screwing of said male-threaded ring in the female thread forces the gaskets to expand between the pipe and the body of the fitting keeping the pipe and the fitting tightly united.

REFERENCES:
patent: 302343 (1884-07-01), Kitton
patent: 1202196 (1916-10-01), Lewis
patent: 2190419 (1940-02-01), Evarts
patent: 4183560 (1980-01-01), Wyss

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