Sheet feeding or delivering – Feeding – Pack holders
Patent
1996-09-30
1999-11-23
Terrell, William E.
Sheet feeding or delivering
Feeding
Pack holders
271 98, 271153, 271154, 271263, B65H 314, B65H 118, B65H 116, B65H 712
Patent
active
059886293
ABSTRACT:
A sheet feeder having a platform for supporting a stack of sheets, a feed head assembly for feeding sheets seriatim from the top of a sheet supply stack on the platform, a mechanism for moving the platform relative to the feed head assembly, and a device for controlling operation of the platform moving mechanism. The control device for the platform moving mechanism includes a sensor for detecting marginal edges of sheets in the sheet stack on the platform, and producing a signal indicative of sheet edge detection. Additionally, a sensor is provided for detecting the location of the topmost sheet on the sheet stack on the platform, and producing a signal indicative of such top sheet location detection. A signal is set representative of the top of the sheet stack being in proper operative relation to the feed head assembly, this set signal being based on the signal from the top location sensor for the particular location of the top of the stack when the marginal sheet edge detection signal is first produced. Periodically thereafter, a control signal is produced for actuating the sheet stack supporting platform moving mechanism until the signal indicative of detection of the topmost sheet from the top location sensor is substantially equal to the set signal.
REFERENCES:
patent: 3955811 (1976-05-01), Gibson
patent: 5017972 (1991-05-01), Daughton et al.
patent: 5033731 (1991-07-01), Looney
patent: 5090676 (1992-02-01), Matsuno et al.
patent: 5295678 (1994-03-01), Lindner et al.
patent: 5344133 (1994-09-01), Jantsch et al.
patent: 5447240 (1995-09-01), Makino
patent: 5584472 (1996-12-01), Hidding et al.
patent: 5673907 (1997-10-01), Rumsey et al.
Burlew Leroy E.
Dobbertin Michael T.
Mitchell Henry P.
Wituszynski Theophilus C.
Eastman Kodak Company
Kessler Lawrence P.
Park Wonki K.
Terrell William E.
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