Separation-preventive pipe joint

Details Separation-preventive pipe joint Separation-preventive pipe joint

1996-03-14

1997-03-25

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285321, 285374, 285404, 285906, F16L 3500

Patent

active

056137141

ABSTRACT:
A separation preventive pipe joint is provided. A locking ring provided on an inner periphery of a socket is engaged with a projection formed on an outer periphery of an end portion of a spigot to prevent the spigot from being separated from the socket. When the spigot is to move deeper in the socket, a sleeve provided inside the socket abuts the end of the spigot to prevent the movement of the spigot. The movement of the spigot may otherwise be prevented by locating a deeper end face of the socket adjacent to the projection of the spigot. The projection fills up a clearance between the outer periphery of the spigot and the inner periphery of an open end portion of the socket, thereby preventing the spigot and the socket from bending relative to each other. The clearance may otherwise be filled up by means of a ring disposed on the inner periphery of the socket and bolts to be screwed into the socket from the outer periphery thereof to press the ring against the outer periphery of the spigot.

REFERENCES:
patent: 2398399 (1946-04-01), Alexander
patent: 3345085 (1967-10-01), Hones
patent: 4296953 (1981-10-01), Nagao et al.
patent: 4830408 (1989-05-01), Reimert
patent: 5037144 (1991-08-01), Peting et al.

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