Apparatus for detecting the flotation level in an air supported

Details Apparatus for detecting the flotation level in an air supported Apparatus for detecting the flotation level in an air supported

1981-03-16

1983-08-09

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separators

271 98, 271105, 271166, B65H 312, B65H 348

Patent

active

043974597

ABSTRACT:
An apparatus in which sheets are separated and fed, in seriatim, from a stack with a flow of pressurized fluid being directed between the stack and support thereof. The pressurized fluid produces a gap between the stack and support which is detected. The pressure of the fluid is controlled in response to the detected gap.

REFERENCES:
patent: 2819076 (1958-01-01), Wendt et al.
patent: 3618932 (1971-11-01), Moreland et al.
patent: 3945633 (1976-03-01), Knopp
patent: 3947018 (1976-03-01), Stange
patent: 4132400 (1979-01-01), Naramore
patent: 4134580 (1979-01-01), Duzinskas et al.
patent: 4165132 (1979-08-01), Hassan et al.
patent: 4269406 (1981-05-01), Hamlin
patent: 4299381 (1981-11-01), Smith
Roller, D. C., "Recirculating Automatic Document Feeder," IBM Tech. Disc. Bull., vol. 22, No. 6, Nov. 1979, pp. 2228-2229.
Wenthe, S. "Air Adjustment-Automatic", Xerox Disc. Journal, vol. 5, No. 4, Jul./Aug. 1980, p. 383.

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