Pipe socket insert
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United States of America Patent
Stats
-
May 30, 1989
Grant Date -
N/A
app pub date -
Jan 19, 1988
filing date -
Jan 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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