US PATENT SUBCLASS 242 / 420.3
.~.~.~.~.~ Slackness sensor

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

410  DF  TENSION CONTROL OR BRAKE {3}
416  DF  .~ Supply controlled {6}
420  DF  .~.~ Supply coil drive control {3}
420.1  DF  .~.~.~ Peripheral drive {1}
420.2  DF  .~.~.~.~ Belt {1}
420.3.~.~.~.~.~ Slackness sensor

DEFINITION

Classification: 242/420.3

Slackness sensor:

(under subclass 420.2) Subject matter wherein the drive member is associated with a detector responsive to the degree of gravitational or similar sag in the material being unwound from the delivery coil, which detector is a material stress information input component of the tension regulating system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

413.3+, for a slack sensor used in regulating a take-up coil drive.

418.1, for a slack sensor used in regulating the drag developed by a feeder.

419.1, for a slack sensor used in regulating a drag on a running length of material.

420.6, for a slack sensor used in regulating an electrical control circuit of a supply coil drive.

421.5, for a slack sensor used in regulating a supply coil brake. SEE OR SEARCH CLASS

254, Implements or Apparatus for Applying Pushing or Pulling Force, particularly

272+, for a cable-deflected control for regulating winding in a winch or hoist.