Pipe joint construction

Details Pipe joint construction Pipe joint construction

1974-10-10

1976-03-02

Callaghan, Thomas F.

Pipe joints or couplings

Essential catch

Resilient ring

285342, 285404, F16L 2104

Patent

active

039414108

ABSTRACT:
A sealed, vibration resistant, non-separating joint construction connects the plug end of one pipe to the socket end of another pipe. A split lock ring, recessed in an internal groove in the the plug end before insertion of the plug into the socket, is then contracted and extended from the groove into engagement with the outer surface of the plug by set screws on the socket spaced circumferentially around the groove. The contracted lock ring centers the plug in the socket and axially overlaps a radially projecting shoulder or step surface on the plug to prevent axial separation. A sealing member is pressed axially into the annular space between the inner surface of the socket, the outer surface of the plug, and the outer lateral surface of a back-up ring covering the outer lateral surface of the lock ring.

REFERENCES:
patent: 2440452 (1948-04-01), Smith
patent: 2521127 (1950-09-01), Price
patent: 2741497 (1956-04-01), Risley
patent: 2986409 (1961-05-01), Weber
patent: 3345087 (1967-10-01), Hanes et al.
patent: 3433504 (1969-03-01), Hanes
patent: 3489439 (1970-01-01), Word
patent: 3606393 (1971-09-01), Huntsinger et al.
patent: 3844589 (1974-10-01), Bram

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