Method for welding polycarbonate by high frequency

United States of America Patent

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Jul 25, 1995
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Apr 18, 1991
filing date
Oct 18, 1988

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Abstract

The invention relates to a method for welding thermoweldable sheets of which at least one is made of polycarbonate. The method is characterized in that the sheets to be welded are separated from the metal electrodes (4,5) of the high frequency press by means of a glass plate (2,3). Application to the fabrication of high density magnetic cards.

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Patent Owner(s)

Patent Owner	Address
GEMPLUS S C A	FRENCH BASED MINOS GEMENOS BOUCHES-DU-RHONE

International Classification(s)

B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Delmar, Jean-Claude	Couches, FR	1	10
Schmuckle, Christian	Chalon S/Saone, FR	2	17

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Method for welding polycarbonate by high frequency

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07678255

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PATENT NO	5435878
SERIAL NO	07678255
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07678255

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