Method of forming a seal

Details Method of forming a seal Method of forming a seal

1988-12-29

1990-07-03

Cashion, Jr., Merrell C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562744, 1562746, 156285, 1563084, 1563096, 219 1043, B32B 3120, B32B 5128

Patent

active

049388185

ABSTRACT:
The present invention is for a method of forming a seal in a prior art collapsible tube assembled in a prior art manner. A laminate seal is cut, positioned and held, and welded to the dispensing orifice of a rigid plastic head after the head is molded, but before it is assembled to the tube wall. The seal is protected during the welding of the wall to the head by the use of a heat sink.

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