Sheet feeding or delivering – Feeding – Separators
Patent
1997-11-24
2000-05-30
Ellis, Christopher P.
Sheet feeding or delivering
Feeding
Separators
271263, 27126504, B65H 346, B65H 712, B65H 702
Patent
active
06068254&
ABSTRACT:
Film sheet handling apparatus includes a mechanism for removing a film sheet from a film sheet stack by bending a front area of the top film sheet and then removing the top film sheet from the stack. A multiple sheet detector includes a pair of jaws mounted at the free end of the rotatable lever. The jaws are spaced apart a fixed distance which will allow a single film sheet but not multiple film sheets to slide between the jaws. The lever is rotated so that the jaws are moved into the bent front area of the top film sheet while it is still located on the stack. The film sheet is allowed to slide between the jaws if a single film sheet is separated, so that the lever and jaws are rotated to a first position. The jaws are blocked if multiple sheets are contacted, so that the lever and jaws are rotated to a second position in advanced of the first position. A sensor assembly is stationarely mounted relative to the lever and jaws and selectively senses whether the lever and jaws are at the first or second positions to indicate whether a single or multiple film sheets been separated, respectively.
REFERENCES:
patent: 3744787 (1973-07-01), Morrison
patent: 4462585 (1984-07-01), Gieson et al.
patent: 4531726 (1985-07-01), Bornstein
patent: 4533133 (1985-08-01), Hams
patent: 5303912 (1994-04-01), Blank et al.
patent: 5348286 (1994-09-01), Buck
patent: 5647583 (1997-07-01), Emigh et al.
Bower Kenneth W.
Eastman Kodak Company
Ellis Christopher P.
Noval William F.
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