Vacuum roller

Details Vacuum roller Vacuum roller

1978-10-17

1980-06-17

Schacher, Richard A.

Advancing material of indeterminate length

With adherence or attraction of material to advancing means

By pneumatic pressure

226193, 271196, 291211, B65H 1728

Patent

active

042079985

ABSTRACT:
A vacuum roller assembly for feeding sheet material such as finishing paper, carton, foil and the like, wherein a resilient roller shell is provided with a plurality of suction ports for drawing the sheet material into non-slip contact with the roller assembly. A plurality of deformable slit-like openings extend into the resilient shell, with the slits being in vacuum communication with the suction ports to provide a suction network over the roller and adaptable for providing suction to only that portion of the vacuum roller in contact with the sheet material.

REFERENCES:
patent: 3122295 (1964-02-01), Davison
patent: 4029249 (1977-06-01), Nagel

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