Plastic container closure and method of making it

Details Plastic container closure and method of making it Plastic container closure and method of making it

1986-08-08

1988-05-24

Norton, Donald F.

Bottles and jars

Closures

Retained by bonding or adhesive means

156 69, 156 731, B65D 3904

Patent

active

047460253

ABSTRACT:
A plastic closure for a plastic container and a method of making it. The closure is made of a plastic material of different hardness or melting temperature from the container and its sealing edge is fitted into the container neck. An edge surface of the sealing edge extends substantially immediately adjacent an edge surface of the neck and is welded to the neck by simultaneous heating of the adjacent edge surfaces.

REFERENCES:
patent: 3263724 (1966-08-01), Mojonnier et al.
patent: 3402873 (1968-09-01), Lauterbach
patent: 3483066 (1969-12-01), Harris et al.
patent: 3561668 (1971-02-01), Bergstrom
patent: 3824138 (1974-07-01), Karobath et al.
patent: 4411720 (1983-10-01), Sager

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