Adjustable vacuum pad

Details Adjustable vacuum pad Adjustable vacuum pad

1985-05-31

1987-12-15

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Separators

294 641, 901 40, B65H 308

Patent

active

047127848

ABSTRACT:
A vacuum pad has a plurality of orifices on one surface. Structure is provided for creating, at selected ones of said orifices, a reduced pressure relative to atmospheric pressure and for creating at the other orifices an elevated pressure relative to the atmospheric pressure.

REFERENCES:
patent: 1575892 (1926-03-01), Ashby
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patent: 3137390 (1964-06-01), Atanasoff et al.
patent: 3334896 (1967-08-01), Mullin
patent: 3421753 (1969-01-01), Staples, Jr.
patent: 3504910 (1970-04-01), Spyropoulos
patent: 3617048 (1971-11-01), Albert
patent: 3815762 (1974-06-01), Hoke et al.
patent: 4216955 (1980-08-01), Avritt
patent: 4327906 (1982-05-01), Frohlich
IBM Technical Disclosure Bulletin, vol. 24, No. 5, pp. 2526, 2527, Oct. 1981, "Pressure/Vacuum Sensing Device", K. H. Westermann.

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