Sealing thermoplastic member devoid of conductive material

Details Sealing thermoplastic member devoid of conductive material Sealing thermoplastic member devoid of conductive material

1990-08-01

1993-03-02

Evans, Geoffrey S.

Electric heating

Metal heating

Of cylinders

219 1053, 219 1073, 219 1075, 53306, 53478, 156 69, 1563797, H05B 600

Patent

active

051911817

ABSTRACT:
The present invention provides a method and an apparatus for induction welding a first plastic member to a second plastic member. A contacting portion of the first plastic member is clamped into contact with a contacting portion of the second plastic member. A current is induced in conductive material external to the plastic members and proximate one of the contacting portions to generate heat sufficient to bond the contacting portions together. The method and apparatus are capable of sealing plastic members that are devoid of conductive material.

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Attachment III--Patent Abstracts from Computer Search.
Attachment IV--Article Abstracts from Computer Search.
Attachment V--"Unraveling the Myths and Mysteries of Induction Sealing", William F. Zito, Journal of Packaging Technology (Jan. 1990).

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