Tube forming method

Details Tube forming method Tube forming method

1978-06-30

1980-07-01

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156272, 156275, 156380, 156466, 219 1053, 219 85, B29C 1902

Patent

active

042104777

ABSTRACT:
A laminate of non-ferrous metal foil and heat softenable material is folded to tubular form to juxtapose the margins and the margins are heat sealed by passing the tube through an inductance coil; the inductance field may be intensified by a ferrite bar located in a mandrel over which the tube is fed.

REFERENCES:
patent: 3242300 (1966-03-01), Osborn
patent: 3393286 (1968-07-01), Zandstra
patent: 3511957 (1970-05-01), Cannon et al.
patent: 3575769 (1971-04-01), Radzio

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