Pipe socket insert

Details Pipe socket insert Pipe socket insert

1988-01-19

1989-05-30

Arola, Dave W.

Pipe joints or couplings

Packed

Gasket retainer

285423, F16L 1700

Patent

active

048344303

ABSTRACT:
A pipe socket insert is disclosed for use within the socket of a length of plastic pipe. The insert is formed as a shaped annulus having a rearward, downwardly inclined ramp and a forward, downwardly inclined ramp, the rearward ramp and the forward ramp having a circular transition zone therebetween. The rearward ramp is provided with a plurality of circularly spaced valleys defined one from the other by circularly spaced ribs, the ribs forming portions of the outer peripheral configuration of the rearward ramp for contact with portions of the inner periphery of the pipe socket. Additionally, if desired, the forward ramp can also be provided with a plurality of circularly spaced valleys defined one from the other by a plurality of circularly spaced ribs.

REFERENCES:
patent: 2097571 (1937-11-01), Moran
patent: 3430989 (1969-03-01), Wenct
patent: 4120521 (1978-10-01), Parmann
patent: 4368894 (1983-01-01), Parmann
patent: 4625383 (1986-12-01), Vassallo et al.

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