Paddle wheel feeder

B - Operations – Transporting – 65 – H

Patent

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270/117

B65H 3/32 (2006.01) B65H 3/06 (2006.01)

Patent

CA 1251478

ABSTRACT OF THE DISCLOSURE An apparatus for feeding individual substrates from the top of a stack of substrates upon demand includes a paddle wheel having paddles that are semi-cylindrical. The paddles buckle upon contact with the substrates rather than bending and thereby providing reduced normal force sensitivity to paddle deflection and reduced pressure since the force of buckling is a function of thepaddle cross-section rather than paddle length for all areas of the paddles except near the paddle wheel hub. The semi-circular blades reduce misfeeding and multifeeding while having an extended wear life.

484068

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