Sheet feeding or delivering – Feeding – With means to interrupt feeding
Reexamination Certificate
2007-02-06
2007-02-06
Mackey, Patrick (Department: 3653)
Sheet feeding or delivering
Feeding
With means to interrupt feeding
C271S263000, C271S265040
Reexamination Certificate
active
10932031
ABSTRACT:
A sheet feeding apparatus includes a stacker for stacking a sheet; a sheet separating device for sequentially separating and feeding the sheet stacked on the stacker; a sheet transport guide for guiding the sheet from the separating device to a processing position; and an ultrasonic wave sensor arranged between the separating device and the processing position for detecting the sheet. The ultrasonic wave sensor has a wave sending element for emitting an ultrasonic wave with a predetermined frequency and a wave receiving element for receiving the ultrasonic waves from the wave sending element. The wave sending element is arranged at a lower position in a direction of gravity relative to the sheet transport guide. The wave receiving element is arranged at an upper position opposite to the lower position, and has a wave sending surface inclined with an angle relative to a horizontal direction.
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Patent Abstracts of Japan, Publication No. 10/257595, Publication Date; Sep. 25, 1998; Applicant: Murata MFG Co., Ltd., Inventor: Koichi Watanabe et al.
Hirose Syun-ichi
Sano Kazuhide
Kanesaka Manabu
Mackey Patrick
Nisca Corporation
Severson Jeremy R
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