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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Aug 11, 1987
Grant Date -
N/A
app pub date -
May 12, 1986
filing date -
May 12, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and process for expanding a tube at selective points about its circumference to join 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 elastomeric bars lodged along the generally open sides of a bushing located within the first tube end segment cause the elastomeric bars 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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