Apparatus and process for selectively expanding a tube

Details Apparatus and process for selectively expanding a tube Apparatus and process for selectively expanding a tube

1982-01-25

1983-12-27

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

72370, B21D 3908

Patent

active

044223170

ABSTRACT:
An apparatus and process for selectively expanding the wall of a tube by compression and subsequent radial expansion of one or more elastomeric bars lodged within longitudinal slots of a bushing positioned inside the tube. Expansion of the elastomeric bars against the inner surface of the tube results in expansion of the tube wall at intermittent locations about the circumference of the tube.

REFERENCES:
patent: 2762326 (1956-09-01), Burkhart
patent: 3542076 (1970-11-01), Richardson
patent: 4006619 (1977-02-01), Anderson
patent: 4068372 (1978-01-01), Kornahara

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