Rigid or flexible coupling for pipes

Details Rigid or flexible coupling for pipes Rigid or flexible coupling for pipes

1989-08-11

1990-10-30

Arola, Dave W.

Pipe joints or couplings

Convertible

285112, 285178, F16L 1704

Patent

active

049663950

ABSTRACT:
A coupling for either rigidly or flexibly connecting the adjacent ends of a pair of aligned pipes, is formed of a circular casing made of a pair of aligned, semi-circular segments which surround a resilient pipe gasket. The opposite ends of the segments have radially outwardly extending lugs which form pairs of overlapping fastening lugs. The lugs of at least one pair each have transversely aligned bolt holes and opposed sockets that are generally concentric with the bolt holes and open towards each other. A bolt extending through the sockets and bolt holes fasten the lugs together and cause the segments to clamp radially inwardly towards the pipes for coupling the pipes together with some permissible flexibility of relative movement. A plug having opposite end portions and a central bolt hole is removably fitted within the opposed lug sockets, with the bolt extending through its central bolt hole. The plug end portions are offset from each other in an axial direction, relative to the axis of the coupling, so that tightening a nut on the bolt wedges the overlapped pair of lugs apart in an axial direction for causing the segments to clamp axially and radially against the pipes and rigidly hold them against relative movement.

REFERENCES:
patent: 3482857 (1969-12-01), Gohs
patent: 3493249 (1970-02-01), Conrad et al.
patent: 4601495 (1986-07-01), Webb
patent: 4639020 (1967-01-01), Rung et al.

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