Method and apparatus for heat-sealing lids on glass containers

Details Method and apparatus for heat-sealing lids on glass containers Method and apparatus for heat-sealing lids on glass containers

1980-07-22

1981-10-27

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Presses or press platen structures, per se

53420, 53478, 53488, 100 54, 100 61, 100211, 156 69, 156212, B30B 502, B30B 1534, B65B 728

Patent

active

042971616

ABSTRACT:
An apparatus for heat sealing composite lids, made of a laminate of a light ductile alloy coated with a layer of thermoweldable plastic material, on glass containers. The apparatus applies, under pressure, a flexible membrane onto said lid while disposed in position on the mouth of a glass container. The membrane is a simple sheet stretchingly supported by its outer periphery on a movably and hingedly supporting frame. The side of said membrane opposite said lid is subjected to a controlled heat flow, thus sealing the lid to the container.

REFERENCES:
patent: 2671493 (1954-03-01), Olson
patent: 3964958 (1976-06-01), Johnston
patent: 4016021 (1977-04-01), La Fleur
patent: 4050971 (1977-09-01), Verkins et al.

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