Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1975-12-19
1977-03-08
Hoag, Willard E.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
29421R, 29422, 53 41, 53 42, 264 90, 264229, 264291, 264296, 264342R, 29446, 29450, B65B 716, B67B 304
Patent
active
040111199
ABSTRACT:
A method for cold lidding open-top containers with roll-stock elastomeric film by holding a web of the film in air-tight relation across the bottom of a lidding chamber and about its periphery, evacuating the lidding chamber to stretch the web thereinto, inserting the top of the container into the lidding chamber, and releasing the stretched web over the top of the container whereby the inherent restorative characteristic of the web causes it to quickly contract, i.e. "snap" onto the periphery of the container to form a dynamic seal. The removal of the lidded container from the apparatus causes the container to be moved against a tripper plate to ready the apparatus for lidding the next container. The minimum recovery factor of the stretched film web sould be about 85%.
REFERENCES:
patent: 3597372 (1971-08-01), Cook
patent: 3634995 (1975-01-01), Curtis
patent: 3864892 (1975-02-01), Molvar
Gorshe Thomas Mathew
Mitchell Richard Patrick
American Can Company
Auber Robert P.
Charlton F. S.
Dorman Ira S.
Hoag Willard E.
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