Pipe joints or couplings – Screw thimble – Removable
Patent
1983-05-31
1985-10-29
Scanlan, Jr., Richard J.
Pipe joints or couplings
Screw thimble
Removable
285 31, 285354, 285392, F16L 2500
Patent
active
045497567
ABSTRACT:
A conduit coupling assembly for connecting the end portions of a pair of lengths of tubular conduit in coaxial, abutting relationship. Each end portion has external threads of the same size. The coupling assembly includes an abutment ring, locking means, and an outer coupling. The abutment ring has an internal thread sized for threading onto the end portion of one of the lengths of conduit, while the locking means prevents unthreading of the abutment ring once it is installed. The outer coupling has a first end and a second end with a bore extending therebetween sized to slidably, rotatably receive the abutment ring. The inside dimensions of the coupling ends are smaller than an outside dimension of the ring so that the ring is unable to move past the coupling ends. The coupling first end is provided with an internal thread sized for threading on the conduit end portions whereby, with the coupling first end threaded onto the end portion of the one length of conduit and facing the other length of conduit, the other length of conduit can be brought into axial alignment with the one length of conduit and the coupling first end can be threaded onto the end portion of the other length to couple the lengths of conduit.
REFERENCES:
patent: 1119752 (1914-12-01), Goethner et al.
patent: 1270021 (1918-06-01), Delehanty
patent: 2857176 (1958-10-01), McTaggart et al.
patent: 3218096 (1965-11-01), Press
patent: 3984130 (1976-10-01), Berger et al.
patent: 4082319 (1978-04-01), Berger et al.
patent: 4258936 (1981-03-01), Goldberg
Allied Tube & Conduit Corporation
Scanlan, Jr. Richard J.
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