Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1984-09-06
1986-07-08
Culver, Horace M.
Package making
Progressively seamed cover web or web folds
With closing of web between package units
B65B 5130, B65B 912, B65B 920
Patent
active
045985332
ABSTRACT:
In a lateral sealer device for a vertical packaging machine, a strip of film is wound in a cylindrical form around the outer circumferential surface of a supply pipe by a film former, to form a bag-like package, both side edges of the resultant film are overlapped and heat-bonded together, and the bag-like package of film is then heat-bonded laterally at a predetermined pitch. In this sealer device, a sealer frame, which is provided with a pair of lateral sealer members which can toward and away from each other, is attached rotatably to a main frame of a packaging machine. The sealer frame is turned to a desired angle according to the packaging mode being employed and is fixed at a suitably-selected position, so that lateral heat-bonding of packages made of a strip of film can be done in a desired manner.
REFERENCES:
patent: 2960808 (1960-11-01), Pike
patent: 3256673 (1966-06-01), Tew et al.
patent: 3320721 (1967-05-01), Murray
patent: 3599387 (1971-08-01), James
patent: 3685250 (1972-08-01), Henry et al.
patent: 4040237 (1977-08-01), O'Brien
patent: 4265074 (1981-05-01), Reuter et al.
Culver Horace M.
Kabushiki Kaisha Sanwa Jidoki Seisakusho
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