Sheet feeding or delivering – Feeding – By means to convey sheet
Patent
1991-09-05
1993-05-18
Bollinger, David H.
Sheet feeding or delivering
Feeding
By means to convey sheet
271204, 1984761, B65H 502
Patent
active
052113922
ABSTRACT:
An apparatus is described for releasably gripping a sheet and advancing the sheet through a transfer zone and into registration with information developed on a moving member. The apparatus includes a first gripping member and a second gripping member adapted to be moved relative to the first gripping member. The apparatus further includes a mechanism for applying a force on the second gripping member to urge the second gripping member towards the first gripping member to grip the sheet. Moreover, the apparatus includes a mechanism for advancing the first gripping member and the second gripping member through the transfer zone. The apparatus additionally includes a mechanism for moving the second gripping member relative to the first gripping member to acquire or release the sheet. The apparatus further includes a mechanism for positioning the moving mechanism in a first mode of operation to allow the moving mechanism to move the second gripping member, and, in a second mode of operation to prevent the moving mechanism from moving the second gripping member. The printing machine still further includes a mechanism for isolating the positioning mechanism from the force applied by the force applying mechanism during the first mode of operation.
REFERENCES:
patent: 4073489 (1978-02-01), Idstein et al.
patent: 4799664 (1989-01-01), Burger
patent: 4972234 (1990-11-01), Tanaka et al.
patent: 4986526 (1991-01-01), Dastin
patent: 5128726 (1992-07-01), Cassano et al.
patent: 5151745 (1992-09-01), Durland et al.
Cassano James R.
Durland Scott C.
Pfeiffer David T.
Swanson Roger M.
Bollinger David H.
Maginot P. J.
Xerox Corporation
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