Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1986-05-12
1987-08-11
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Assembling or joining
29727, 72 58, 72 62, B21D 3900, B21D 3908, B21D 2210, B23P 1526
Patent
active
046851917
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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patent: 4420866 (1983-12-01), Mueller
patent: 4567631 (1986-02-01), Kelly
Laughry David L.
Mueller Richard A.
Carpenter John W.
Cities Service Oil and Gas Corporation
Goldberg Howard N.
Nichols Steven
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