High frequency heat sealing container closure

Details High frequency heat sealing container closure High frequency heat sealing container closure

1974-09-03

1976-06-15

Van Balen, William J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

215347, 264 25, 264 26, 264 459, 428323, B32B 3120, B65D 5304

Patent

active

039638456

ABSTRACT:
A container closure liner in the form of a layer arrangement having a compressible intermediate layer having high frequency heat sealing characteristics disposed adjacent the lip of a container for bonding thereto. Another layer may be squeezed beyond the periphery of the material for making a better seal.

REFERENCES:
patent: 1431871 (1922-10-01), Burnet
patent: 2238681 (1941-04-01), Dorough
patent: 3143364 (1964-08-01), Klein
patent: 3420923 (1969-01-01), Ashworth et al.
patent: 3620875 (1971-11-01), Guglielmo, Sr. et al.
patent: 3706176 (1972-12-01), Leatherman

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