Pipe coupling

Details Pipe coupling Pipe coupling

1986-07-08

1988-03-08

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

With separate, encased pipe-gripping means

285305, 285373, 285383, F16L 3718

Patent

active

047295821

ABSTRACT:
A coupling for the plain ends of two pipes has a tubular housing with two flange-like end portions which extend radially inwardly toward the ends of the respective pipes. The housing contains two sets of externally toothed blocking elements each of which has an oval outline and is compelled to roll in the axial direction of the pipes when at least one of the pipes is moved axially and away from the other pipe. Each set surrounds one of the pipes and the blocking elements are rotatable on the respective end portions of the housing or on annular carriers in the housing. The blocking elements of each set can rotate relative to each other and their teeth penetrate into the housing and/or into the respective pipes in response to movement of one of the pipes away from the other pipe.

REFERENCES:
patent: 1930194 (1933-10-01), Dillon
patent: 2005056 (1935-06-01), Stephens
patent: 2182797 (1939-12-01), Dillon
patent: 2570224 (1951-10-01), Fason
patent: 3017204 (1962-01-01), Smith
patent: 3915480 (1975-10-01), Kish et al.

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