Material or article handling – Chamber of a type utilized for a heating function and...
Patent
1979-11-26
1981-12-15
Bartuska, F. J.
Material or article handling
Chamber of a type utilized for a heating function and...
221211, 221261, 271107, 271185, 414330, B65G 5904, B65H 308
Patent
active
043056911
ABSTRACT:
A machine for feeding individual flexible trays from an inclined nested stack to a conveyor or other appropriate surface below the stack. Vacuum heads are mounted to arms that pivot about a horizontal axis spaced from an upper transverse edge of an inclined hopper holding the nested stack. The lower end of the inclined hopper is open for engagement by vacuum heads at the ends of the pivoted arms. The vacuum heads are pivoted by the arms to engage successive trays adjacent a lower transverse edge of the hopper. The arms are then pivoted back with the vacuum heads adhered to a tray, stripping the tray from the stack and pivoting it to a substantially horizontal position where it is released to fall to a surface below. A guide may be employed to direct movement of the tray downwardly.
REFERENCES:
patent: 2653743 (1953-09-01), Stenger
patent: 3108714 (1963-10-01), O'Brien
patent: 3407963 (1968-10-01), Daily
patent: 3606960 (1971-09-01), Butterworth
patent: 3750931 (1973-08-01), Dick
patent: 3907161 (1975-09-01), Martin
Bartuska F. J.
R. A. Pearson Company
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