Package making – With fugitive preconditioning of cover material
Patent
1992-10-13
1993-08-17
Culver, Horace M.
Package making
With fugitive preconditioning of cover material
53568, 533891, B65B 6100, B65B 4116, B65B 908
Patent
active
052357929
ABSTRACT:
The blocking troubles due to the static electricity can be completely removed in the opening of the prefolded film. In a continuous packaging machine according to this invention; A web of a synthetic resin packaging material prefolded along the longitudinal direction thereof is fed under a predetermined tension through one or more guide rollers into a film opening mechanism. The prefolded film is opened in the film opening mechanism and is simultaneously inverted and formed into a substantially lateral U-shaped cross section. After package articles are successively transferred into the opened inner parts of the lateral U-shaped synthetic resin packaging film, the opening of the synthetic resin packaging film in the periphery of the package articles is automatically sealed in the automatic sealing section. In accordance with the inventive structure of the continuous packaging machine, an electrostatic removing means is disposed between one or more guide rollers and the film opening mechanim is set between the adjacent inner surfaces of the prefolded synthetic resin packaging film.
REFERENCES:
patent: 3364650 (1968-01-01), House
patent: 3462909 (1969-08-01), Anderson
patent: 4035984 (1977-07-01), Gerlach et al.
patent: 4419855 (1983-12-01), Shanklin
patent: 4516385 (1985-05-01), Lenker et al.
patent: 4879863 (1989-11-01), DiBernardo
Culver Horace M.
Hanagata Corporation
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