Pinch-action suction cup

Details Pinch-action suction cup Pinch-action suction cup

1984-10-22

1986-05-20

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separators

271 90, 271104, 414121, 294 641, B65H 308

Patent

active

045896488

ABSTRACT:
Quickly exchangeable inserts for sheet feeding vacuum cups are provided to accommodate an extended range of sheet permeability. Projecting form structure inserted within a feed cup bellows provides a surface discontinuity for the vacuum nozzle to retard and inhibit double sheet feeding of either highly permeable or highly impermeable paper. Single sheet feed reliability is thereby improved.

REFERENCES:
patent: 783206 (1905-02-01), Juengst
patent: 1990334 (1935-02-01), Koppe
patent: 2163274 (1939-06-01), Dixon
patent: 2745665 (1956-05-01), Lambombarde
patent: 3053529 (1962-09-01), Dunn
patent: 3322301 (1967-05-01), Bliss
patent: 3994488 (1976-11-01), Takenaka et al.
patent: 4420150 (1983-12-01), Umezawa
patent: 4428793 (1984-01-01), Sato et al.

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