Package making – Methods – Applying a partial cover
Patent
1979-03-08
1981-08-04
Sipos, John
Package making
Methods
Applying a partial cover
53453, 53 48, 53559, B65B 2100, B65B 2704
Patent
active
042815029
ABSTRACT:
The disclosed cover, carrier and package for one or more articles, is formed from a sheet of material which is stretchable when softened but relatively rigid otherwise. In a preferred apparatus and process, such a sheet is positioned over the top of the object to be covered and the portion of the sheet directly over the object is softened. A downward force is applied to the unsoftened, still relatively rigid portion of the sheet so as to force it down and around the top of the object. This causes the softened portion of the sheet to be stretched over the top and down the side of the object, conforming closely to it and thus providing a tight seal. By covering multiple articles a carrier may be formed. Methods for controlling the thickness of different parts of the carrier are described. In addition, a carrier may be applied to both the top and bottom of an array of articles in order to form a rigid carton or case.
REFERENCES:
patent: 2210509 (1940-08-01), Strauch
patent: 2289668 (1942-07-01), Mallory
patent: 2828799 (1958-04-01), Harrison
patent: 2874835 (1959-02-01), Poupitch
patent: 2958172 (1960-11-01), LeBranche
patent: 2989827 (1961-06-01), Groth
patent: 3200944 (1965-08-01), Rapata
patent: 3479789 (1969-11-01), Harrison
patent: 3488911 (1970-01-01), Poupitch
patent: 3494098 (1970-02-01), Sternau
patent: 3744626 (1973-07-01), Dreyfus
patent: 4018027 (1977-04-01), Curry
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