US PATENT SUBCLASS 271 / 103
.~.~.~ Sheet-moving action of suction member results from engagement with sheet


Current as of: June, 1999
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271 /   HD   SHEET FEEDING OR DELIVERING

8.1  DF  FEEDING {8}
18  DF  .~ Separators {8}
90  DF  .~.~ Pneumatic {10}
103.~.~.~ Sheet-moving action of suction member results from engagement with sheet


DEFINITION

Classification: 271/103

(under subclass 90) Device wherein the sheet-removing means includes a vacuum cup mounted on an array of telescopically projectable and retractable elements, through which array a source of vacuum is applied, and wherein the projection of

the vacuum cup toward the foremost sheet of a stack causes a sheet-engaging orifice of the vacuum cup to be sealed by the foremost sheet, whereupon the increase in vacuum (i.e., decrease in pressure) within the array following the sealing causes the array and the cup mounted thereon to be retracted from the stack with the foremost sheet attracted to the cup.