Pipe joints or couplings – Connector for conduit housing electromagnetic line:
Patent
1987-12-11
1990-08-21
Arola, Dave W.
Pipe joints or couplings
Connector for conduit housing electromagnetic line:
285255, F16L 3902
Patent
active
049500015
ABSTRACT:
A graduated friction anchor ring for a coupling mounted on an end of a composite pipe having a pipe core and an aramid fiber layer, the aramid fiber layer possessing poor crush resistance properties and the graduated friction anchor ring being integrally positioned within the coupling to securely and delicately anchor the aramid fiber layer in conjunction with a wedge ring. The graduated friction anchor ring comprises an anchor ring, having outer and inner surfaces and an end portion connecting the surfaces, the inner surface being inclined with respect to the surface of the wedge ring, the aramid fiber layer being positioned intermediate the anchor ring and the pipe core, the wedge ring being wedged within the pipe core to wedge the aramid fiber layer between the pipe core and the anchor ring to generate graduated compression along the aramid fiber layer in a longitudinal direction.
REFERENCES:
patent: 2150471 (1939-03-01), Van Vulpen
patent: 2481001 (1949-09-01), Burckle
patent: 2485049 (1949-10-01), Hollisy
patent: 2753196 (1956-07-01), Melsom
patent: 2809056 (1957-10-01), Kaiser
patent: 2940778 (1960-06-01), Kaiser
patent: 3306637 (1967-02-01), Pren et al.
patent: 4123088 (1978-10-01), Tanaka
patent: 4180103 (1979-12-01), Mollere
patent: 4649960 (1987-03-01), Policelli
Arola Dave W.
Miller Austin R.
Simplex Wire & Cable
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