Contact type paper counter

G - Physics – 06 – M

Patent

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Details

340/123.1

G06M 7/00 (2006.01)

Patent

CA 2011973

CONTACT TYPE PAPER COUNTER Abstract of the Disclosure A contact sensor apparatus counts associated sheet products as they pass over a generally planar surface. A vacuum source urges a bottom surface of a sheet product onto the planar surface. A contact member is selectively deflected through engagement with the sheet product and deflects upwardly at the passage of the trailing edge of the sheet product. The contact member is connected to a sheet of piezoelectric material that is distorted upon deflection of the contact member. This produces an electrical charge representative of passage of a paper over the sensor apparatus.

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