US PATENT SUBCLASS 242 / 413.3
.~.~.~ Slackness sensor (e.g., photocell or load cell)

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

410  DF  TENSION CONTROL OR BRAKE {3}
412  DF  .~ Take-up coil drive control {4}
413  DF  .~.~ With material condition sensor {4}
413.3.~.~.~ Slackness sensor (e.g., photocell or load cell) {2}
413.4  DF  .~.~.~.~> With power control circuit {1}
413.7  DF  .~.~.~.~> Transmission control {1}

DEFINITION

Classification: 242/413.3

Slackness sensor (e.g., photocell or load cell):

(under subclass 413) Subject matter wherein the elongated material is wound onto the roll and is adapted to move along a desired path, and the detector responds to undesired deviation of the material from that path.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331.2+, 333.3+, and 334.6, for a material engaging sensor used to control an information-bearing carrier.

418.1, 419.1, 420.6, and 421.5+, for a slackness sensor in various material supply devices.

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.