Suction cup for curling a sheet near its edge and method of use

Details Suction cup for curling a sheet near its edge and method of use Suction cup for curling a sheet near its edge and method of use

1990-07-16

1992-01-28

Olszewski, Robert P.

Sheet feeding or delivering

Feeding

Separators

271 90, 294 641, B65H 308

Patent

active

050837648

ABSTRACT:
The present invention relates to a method and apparatus for moving sheets from substrates without substantially moving the substrate and, specifically, where the sheets are sheets of X-ray film and the substrates are screens found in conventional X-ray cassettes or other sheets in a closely packed stack of sheets. The method and apparatus use at least one suction cup for curling and, thereby, lifting a portion of a sheet near an edge thereof allowing air to partially enter underneath the sheet. The suction cup has a sheet contacting face with a recess extending into the face where the recess is defined by an inner conical surface, a first planar surface and a second planar surface.

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patent: 4887284 (1989-12-01), Bauer et al.
patent: 4979729 (1990-12-01), Bauer et al.

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