US PATENT SUBCLASS 271 / 91
.~.~.~ Plural, relatively-moving suction members

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}
91.~.~.~ Plural, relatively-moving suction members {2}
92  DF  .~.~.~.~> Laterally receding members (e.g., for tautening sheet laterally)
93  DF  .~.~.~.~> Including members for separating and members for forwarding sheet

DEFINITION

Classification: 271/91

(under subclass 90) Device wherein the sheet-removing means comprises at least two vacuum elements, each of which is movable relative to the stack, and each of which is also movable relative to the other.

(1) Note. This subclass is for a device wherein plural cups bend the margins of corners of a sheet toward each other to facilitate separation of that sheet from the stack.