Package making – Wrapping machines – Cover-wiping passage or pocket for initial wrap
Patent
1977-02-22
1979-02-06
McGehee, Travis S.
Package making
Wrapping machines
Cover-wiping passage or pocket for initial wrap
53226, 53230, B65B 1116, B65B 1122
Patent
active
041376919
ABSTRACT:
A stretch wrap packaging machine packages articles received on trays, and can handle various different article geometries and tray sizes without modification. In an initial phase of a wrapping operation film is sleeve wrapped around an article and tray by elevating the article and tray upwardly against a horizontally stretched length of film to draw the film over the article and tray and downwardly along and beyond both ends of the article and tray, and by then joining the downwardly extending film portions below the tray and cutting them from the film supply through the use of a heat-seal and cut-off device having a heated wire which supplies heat to the film, to perform the heat-seal and cut-off functions, by radiation and without engaging the film.
REFERENCES:
patent: 3537235 (1970-11-01), Pepmeier et al.
patent: 3662513 (1972-05-01), Fabbri
patent: 3672116 (1972-06-01), Ingmarson
patent: 3977158 (1976-08-01), Jennings et al.
McGehee Travis S.
Tokyo Automatic Machinery Works Ltd.
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