US PATENT SUBCLASS 144 / 420
.~ Sensing tool or tool-linked part

Current as of: June, 1999
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144 /   HD   WOODWORKING

382  DF  WITH USE OF CONTROL MEANS ENERGIZED IN RESPONSE TO ACTIVATOR STIMULATED BY CONDITION SENSOR {6}
420.~ Sensing tool or tool-linked part {5}
421  DF  .~.~> To control predetermined sequence of operating movements (e.g., of one tool operating on work) {1}
425  DF  .~.~> Including plural sensors or sensor responsive to plural conditions
426  DF  .~.~> To control operation of interlock
427  DF  .~.~> To stop machine
428  DF  .~.~> Sensing force on tool {1}

DEFINITION

Classification: 144/420

Sensing tool or tool-linked part:

(under subclass 382) Subject matter including detecting a condition of a tool* or of a machine element connected to the tool for movement.

(1) Note. Original placement of a patent in this or a subclass indented hereunder requires that the machine element partakes of tool movement, either directly or proportionately, whether the element is fixed to the tool or is connected thereto by a linkage.

SEE OR SEARCH THIS CLASS, SUBCLASS:

400, 401 and 411, for other sensing of a tool or tool-linked part.