Sheet separator

Details Sheet separator Sheet separator

2007-06-19

2007-06-19

Mackey, Patrick (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

C271S117000, C271S118000, C271S119000, C271S121000, C271S122000, C271S124000

Reexamination Certificate

active

10860827

ABSTRACT:
A sheet separator includes an advancing roller driven to rotate to move a sheet forwards along a sheet path, and a reversing roller driven to rotate to move a sheet backwards along the path. The reversing roller and advancing roller are mounted adjacently and are relatively movable between a pinched position and a separated position. The reversing roller has a torque limiter for allowing the reversing roller to slip and counter-rotate with the advancing roller when friction applied by the advancing roller on the pinched reversing roller exceeds a preset value. Overriding roller mounted therein allows a sheet to pass over a roller when the rollers are separated and to remain idle when the rollers are pinched.

REFERENCES:
patent: 3127181 (1964-03-01), Crego et al.
patent: 5145160 (1992-09-01), Nagashima et al.
patent: 5178378 (1993-01-01), Nakajima
patent: 5211388 (1993-05-01), Walluk
patent: 5890395 (1999-04-01), Kawata et al.
patent: 5996990 (1999-12-01), Kawashima
patent: 6059281 (2000-05-01), Nakamura et al.
patent: 6070867 (2000-06-01), Tsurumi et al.
patent: 6869070 (2005-03-01), Shimamura et al.

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