Sheet feeding or delivering – Feeding – Pack holders
Reexamination Certificate
2007-07-03
2007-07-03
Mackey, Patrick (Department: 3653)
Sheet feeding or delivering
Feeding
Pack holders
C271S160000
Reexamination Certificate
active
10855752
ABSTRACT:
A system for feeding and transporting documents includes a feeder stage and a transport stage. The hopper assembly includes a hopper floor that carries the document stack and a flag that provides a force to move the documents along the hopper floor toward the feeder. A fixed force means biases the flag with a fixed force while a spring means biases the flag with a variable spring force. The spring force varies with flag position to cause each document in the stack to be fed with an appropriate force due to spring force decreasing as the stack size diminishes.
REFERENCES:
patent: 625861 (1899-05-01), Vail et al.
patent: 2853298 (1958-09-01), Faeber
patent: 3162438 (1964-12-01), Perry, Jr.
patent: 3240489 (1966-03-01), Eckert, Jr. et al.
patent: 3598399 (1971-08-01), Cottrell
patent: 3811549 (1974-05-01), Preisig
patent: 3865365 (1975-02-01), Hardin et al.
patent: 4065123 (1977-12-01), Arrasmith et al.
patent: 4323230 (1982-04-01), Rising
patent: 4524965 (1985-06-01), Kulpa
patent: 4662623 (1987-05-01), Nakanishi
patent: 4928952 (1990-05-01), Svyatsky
patent: 4953748 (1990-09-01), Wheelock
patent: 5150818 (1992-09-01), DeMoss
patent: 5419546 (1995-05-01), Chen et al.
patent: 5437375 (1995-08-01), Chen et al.
patent: 5439506 (1995-08-01), Chen et al.
patent: 5509648 (1996-04-01), Chen et al.
patent: 5524876 (1996-06-01), Porter
patent: 5671919 (1997-09-01), Chen et al.
patent: 5848784 (1998-12-01), Tranquilla
patent: 5890712 (1999-04-01), Phillips et al.
patent: 5908191 (1999-06-01), Chen et al.
patent: 5957448 (1999-09-01), Frank et al.
patent: 5971391 (1999-10-01), Salomon et al.
patent: 6199854 (2001-03-01), Tranquilla et al.
patent: 6260841 (2001-07-01), Tranquilla
patent: 6417221 (2002-07-01), Meltzer et al.
patent: 6419221 (2002-07-01), Spall
patent: 6434851 (2002-08-01), Nishina
patent: 6454253 (2002-09-01), Tranquillla
patent: 6474637 (2002-11-01), Spall et al.
patent: 6588743 (2003-07-01), Yap
patent: 6817607 (2004-11-01), Gasch
patent: 7040618 (2006-05-01), Monch
Brooks & Kushman P.C.
Gregson Richard J.
Mackey Patrick
Severson Jeremy R
Unisys Corporation
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