04685191 is referenced by 96 patents and cites 9 patents.

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.

Title
Apparatus and process for selectively expanding to join one tube into another tube
Application Number
6/862279
Publication Number
4685191
Application Date
May 12, 1986
Publication Date
August 11, 1987
Inventor
David L Laughry
Tulsa
OK, US
Richard A Mueller
Tulsa
OK, US
Agent
John W Carpenter
Assignee
Cities Service Oil and Gas Corporation
OK, US
IPC
B23P 15/26
B21D 22/10
B21D 39/08
B21D 39/00
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