Method and apparatus for closing the end of an extruded tube sub

Details Method and apparatus for closing the end of an extruded tube sub Method and apparatus for closing the end of an extruded tube sub

1977-08-08

1979-08-28

Husar, Francis S.

Metal deforming

By tool-couple pressing together adjacent surface portions...

72255, 72256, 72265, 72370, B21C 2308, B21C 3504

Patent

active

041656270

ABSTRACT:
In the direct extrusion of tubing wherein the extruded tube or tubing is immediately submerged into water after extrusion and having a closed leading end, the trailing end thereof in the extrusion press is sealed off from the entrance of water by a crimping device consisting of a tool having a rounded front end which engages and forces through the operation of a piston cylinder assembly one wall inwardly of the trailing end against an opposed wall to form a collapsed double wall cross section.

REFERENCES:
patent: RE25570 (1964-05-01), Lemelson
patent: 1859753 (1932-05-01), Summey
patent: 2005306 (1935-06-01), Wallis
patent: 2469975 (1949-05-01), McCloy
patent: 3243984 (1966-04-01), Hoffmann et al.
patent: 3263465 (1966-08-01), Way et al.
patent: 3296847 (1967-01-01), Gettig
patent: 3358062 (1967-12-01), Lemelson
patent: 3792144 (1974-02-01), Burkett et al.
patent: 3814783 (1974-06-01), Dardaine et al.
patent: 3913207 (1975-10-01), Frey

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