Apparatus and process for selectively expanding to join one tube into another tube
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United States of America Patent
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Dec 20, 1983
Grant Date -
N/A
app pub date -
Jan 25, 1982
filing date -
Jan 25, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and process for expanding a tube at selective points about its circumference to join with another tube. After a segment of a first tube is inserted into a second tube having an end sleeve segment with a larger diameter and wall thickness than the first tube, compression and subsequent radial expansion of one or more elastomeric bars lodged within longitudinal slots of a bushing means locted within the first tube end segment cause the elastomer to radially expand the wall of the first tube. The wall of the first tube expands at selective points against the wall of the second tube in proximity to their respective ends, creating a selective interference fit therebetween.
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