Pipe joints or couplings – Movable jaw
Patent
1975-03-03
1976-12-14
Arola, Dave W.
Pipe joints or couplings
Movable jaw
285348, F16L 2106
Patent
active
039971996
ABSTRACT:
A pipe coupling which is mountable on the external surface of a pipe to which the connection is made. The coupling includes annular grip means mounted in the coupling and having an outer axially tapered cam surface and an inward gripping surface for gripping the external surface of the pipe to be joined. An annular bowl member is mounted radially outwardly adjacent to the grip members and is arranged for relative movement therewith and is provided with a tapered surface for engaging and camming the grip means radially inwardly. Annular seal means are provided in the coupling adjacent to the bowl means and an axially movable thrust member is mounted axially adjacent the seal means whereby the application of axial force to the thrust member actuates the seal means and the gripping means. The means for applying the axial force are preferably means operable from a position exterior of the coupling.
REFERENCES:
patent: 1545680 (1925-07-01), Moore
patent: 1747782 (1930-02-01), Mahon et al.
patent: 2478149 (1949-08-01), Wolfram et al.
patent: 3134610 (1964-05-01), Musolf
patent: 3393926 (1968-07-01), Arnold
patent: 3713675 (1973-01-01), White
Arola Dave W.
HydroTech International, Inc.
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