Slip control for helically wound pipes
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United States of America Patent
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-
Dec 24, 1991
Grant Date -
N/A
app pub date -
Feb 16, 1990
filing date -
Aug 19, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and means of slip control for helically wound pipes wherein the pipe is formed by helically winding a strip of plastics material and the edges of the convolutions of the strip are interconnected, wherein a slip-control member applied to the interconnected edges of the convolutions of the strip is arranged to be withdrawable progressively from the pipe to allow slip linearly between the interconnected edges of the convolutions of the pipe when torque is applied to the pipe.
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