US PATENT SUBCLASS 433 / 105
.~.~ Including clutch or variable transmission


Current as of: June, 1999
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433 /   HD   DENTISTRY

25  DF  APPARATUS {20}
103  DF  .~ Having motor or means to transmit motion from motor to tool (e.g., "engine") {10}
105.~.~ Including clutch or variable transmission


DEFINITION

Classification: 433/105

Including clutch or variable transmission:

(under subclass 103) Apparatus including either (a) a selectively engageable drive between the prime mover and tool, or (b) means to vary the ratio of the speed of movement of the prime mover's working member to the speed of movement of the tool.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

640+, for gearing.

192, Clutches and Power-Stop Control,

30+, for a clutch, per se.

408, Cutting by Use of Rotating Axially Moving Tool,

124+, and 139 for drilling apparatus having clutches or variable speed transmissions, especially subclass 133 for plural speed drives. 474, Endless Belt Power Transmission Systems or Components, appropriate subclasses for variable speed transmission using a belt drive.