US PATENT SUBCLASS 271 / 152
.~.~.~ Control of advancer responsive to sensing of foremost sheet

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

8.1  DF  FEEDING {8}
145  DF  .~ Pack holders {7}
147  DF  .~.~ Advancer {5}
152.~.~.~ Control of advancer responsive to sensing of foremost sheet {3}
153  DF  .~.~.~.~> Sensor included in feed mechanism
154  DF  .~.~.~.~> Sensor activates electric or fluidic circuit {1}
156  DF  .~.~.~.~> Controlled pawl and ratchet actuates advancer

DEFINITION

Classification: 271/152

(under subclass 147) Device provided with means to detect the absence or presence of a sheet adjacent a sheet-removal zone, and further provided with means to activate or de-activate the stack-urging means as a result of such detection.

SEE OR SEARCH THIS CLASS, SUBCLASS:

25, 31, 38, and 130, for a device wherein a feeler or sensor is associated with a pack advancer.

176, 199, 215, for sheet delivery means including sheet sensing means.

258+, and 110+, for a device wherein a feeler or sensor is associated with a feed interrupter.