Package making – Wrapping machines – Fixed package support during wrapping
Patent
1986-04-18
1987-03-17
Culver, Horace M.
Package making
Wrapping machines
Fixed package support during wrapping
53389, 53390, 242 754, 242156, B65B 6710, B65B 4112, B65B 1104
Patent
active
046496939
ABSTRACT:
Apparatus for use in hand wrapping articles, for example trays of meat, with thermoplastic wrapping sheet material (plastic film) that includes a frame which mounts a wrapping platform, a heated device for severing the wrapping material, a heat sealing platform for sealing the wrapped article, a pair of spaced parallel rollers for supporting a roller of wrapping material with the web of the material extending away from the roll (free end portion) reversely bent over one of the rollers, bracket mechanism for mounting the rollers on the frame, mechanism for selectively varying the pulling force required to pull material from the roll and guide mechanism for abutting against the web intermediate the pair of rollers and the wrapping platform. Also there is disclosed prior art mechanism that includes a threaded shaft extended through the core of a roll of plastic film, a pair of notched bars mounted on the frame for removably mounting each end portion of the shaft and a pair of retainer members threaded on the shaft for abutting against opposite ends of the roll on the shaft.
REFERENCES:
patent: 3452511 (1969-07-01), Hoffler
patent: 3850379 (1974-11-01), Stern
patent: 4099601 (1978-07-01), Pittman
patent: 4116749 (1978-09-01), Dufort et al.
patent: 4248392 (1981-02-01), Parry
patent: 4336911 (1982-06-01), Fairchild
patent: 4477037 (1984-10-01), Goldstein
patent: 4522348 (1985-06-01), Strout et al.
patent: 4551962 (1985-11-01), Kawahara
Culver Horace M.
Johnson Clayton R.
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