Method for sealing plastic films and the like

Details Method for sealing plastic films and the like Method for sealing plastic films and the like

1977-06-16

1978-08-29

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156275, B29D 2310, B29C 1906

Patent

active

041101456

ABSTRACT:
There is disclosed herein an improved method and apparatus for plastic sealing/bonding in which a wire element is positioned between two interfacing (plastic) pieces to be sealed/bonded together, wherein one or both of said pieces are wholly plastic or contain a plastic component. With the wire sandwiched and retained between the interfacing surfaces, a voltage is applied to the wire for a predetermined time to cause the wire to heat sufficiently to melt both interfacing surfaces and effect a fusion and formation of a bond.

REFERENCES:
patent: 2647072 (1953-07-01), Smith
patent: 2773773 (1956-12-01), Harder et al.
patent: 3921847 (1975-11-01), Rentmeester

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