Sheet feeding or delivering – Feeding – Separators
Patent
1977-06-20
1978-10-24
Stoner, Jr., Bruce H.
Sheet feeding or delivering
Feeding
Separators
271108, B65H 310
Patent
active
041218191
ABSTRACT:
A feeder/transporter having a ported hollow cylindrical vacuum housing and an internal complimentary shaped control valve. The housing is mounted for rotation about an axis located so as to position a sheet receiving outer surface of the housing for movement in a path from adjacent to a tray for supporting a stack of sheets toward a remote location to which the sheets are to be fed. The control valve is non-rotatably supported on the axis of the housing, and is mounted for reciprocable movement along the axis to control the opening and closing of ports in the housing. The control valve has an opening extending for a portion of its circumference with a series of port-blocking tabs extending into the opening. The tabs are positioned during the reciprocating movement of the control valve, in timed relation to the rotation of the vacuum housing, to selectively open the ports of the housing to effect seriatim sheet feeding and block the ports of the housing to substantially eliminate drag on the trailing portion of fed sheets, and to prevent possible premature feeding of subsequent sheets.
REFERENCES:
patent: 1618182 (1927-02-01), Frohn
patent: 2033849 (1936-03-01), Mudd
patent: 2834596 (1958-05-01), Halahan et al.
patent: 2861803 (1958-11-01), Halahan et al.
patent: 3005565 (1961-10-01), Doane et al.
patent: 3212772 (1965-10-01), Ward
patent: 3674255 (1972-07-01), Arnell
DiFrancesco Alphonse Benjamin
Shear John Charles
Eastman Kodak Company
Kessler L. P.
Stoner Jr. Bruce H.
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