US PATENT SUBCLASS 83 / 290
.~.~.~ With trip-switch work-sensing means

Current as of: June, 1999
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83 /   HD   CUTTING

284  DF  CUTTING MOTION OF TOOL HAS COMPONENT IN DIRECTION OF MOVING WORK {17}
285  DF  .~ With means to initiate intermittent tool action {2}
286  DF  .~.~ Tool moved in response to work-sensing means {4}
290.~.~.~ With trip-switch work-sensing means {1}
291  DF  .~.~.~.~> To initiate feed movement of tool {1}

DEFINITION

Classification: 83/290

(under subclass 286) Device in which the transmitter includes an electrical circuit to initiate cutter action, and in which the detector includes a make-break portion in said circuit.

(1) Note. Contact of the work with the trip switch may be either direct, or indirect, as by engagement of the work with a lever or linkage connected to the trip switch.

(2) Note. Included in this subclass (290) are patents disclosing rotary flying tools of the type classified in subclasses 331+, which tools are actuated by a trip switch.

SEE OR SEARCH THIS CLASS, SUBCLASS:

372, for other operating means responsive to trip switch

work-sensing means.

SEE OR SEARCH CLASS 200, Electricity: Circuit Makers and Breakers,

61.13+, 61.19+, 61.41, and 61.42+, for a detector switch, per se.