Method for sealing a plastics lid to a container of plastics-coa

Details Method for sealing a plastics lid to a container of plastics-coa Method for sealing a plastics lid to a container of plastics-coa

1978-02-17

1980-08-12

Hoag, W. E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

53478, 156273, 264 26, 264248, B29C 2704, B65B 728

Patent

active

042171563

ABSTRACT:
A method and an apparatus used for sealing a plastics lid to a container of plastics-coated paper board, the lidded container at several locations in the area which the lid joins the container, being supplied with energy in the form of electromagnetic microwaves, and the energy being absorbed in the paper board to melt for welding of the lid to the container.

REFERENCES:
patent: 2335159 (1943-11-01), Salfisberg
patent: 2402943 (1946-07-01), Bogolowsky
patent: 2413449 (1946-12-01), Hatch
patent: 2510727 (1950-06-01), Sussenbach
patent: 2695427 (1954-11-01), Sarge et al.
patent: 2723517 (1955-11-01), Mittelmann
patent: 3142601 (1964-07-01), Polk et al.
patent: 3338027 (1967-08-01), Amberg
patent: 3356552 (1967-12-01), Pearl
patent: 3454442 (1969-07-01), Heller
patent: 3574031 (1971-04-01), Heller et al.
patent: 3604880 (1971-09-01), O'Neill
patent: 3734813 (1973-05-01), Pohl
patent: 3892351 (1975-07-01), Johnson et al.
patent: 3940845 (1976-03-01), Czerwiak
patent: 4060443 (1977-11-01), Balla

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