Separation-preventing pipe joint construction

Details Separation-preventing pipe joint construction Separation-preventing pipe joint construction

1976-05-14

1978-04-04

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285321, F16L 3500

Patent

active

040823210

ABSTRACT:
A joint connecting the plug of one pipe to the socket of another pipe and permitting relative axial movement between the pipes includes a step surface formed on the end of the plug and engageable by a split lock ring fitted into an annular groove formed in the inner surface of the socket. The lock ring is contractable into fitted relation with the plug and is provided at its ends with overlapping portions engageable by a retaining member insertable through the clearance between the socket and plug to maintain the lock ring in contracted position. The overlapping portions are preferably provided on separate pieces adjustably mounted on the ends of the split lock ring. A jig, insertable through the clearance between the plug and the socket into engagement with the ends of the lock ring, is provided for contracting the lock ring prior to the insertion of the retaining member.

REFERENCES:
patent: 3177019 (1965-04-01), Osweiler
patent: 3521911 (1970-07-01), Hanes et al.
patent: 3530685 (1970-09-01), Ehret
patent: 3540224 (1970-11-01), Pogonowski
patent: 3712648 (1973-01-01), Clifford
patent: 3754780 (1973-08-01), Pogonowski
patent: 3884510 (1975-05-01), Bram
patent: 3941410 (1976-03-01), Miyaoka

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