US PATENT SUBCLASS 74 / 425
.~.~.~ Worm

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

640  DF  GEARING {31}
412 R  DF  .~ Directly cooperating gears {8}
424.5  DF  .~.~ Spiral {4}
425.~.~.~ Worm {3}
425.5  DF  .~.~.~.~> Variable speed
426  DF  .~.~.~.~> Intermittent motion
427  DF  .~.~.~.~> Distribution of pressure

DEFINITION

Classification: 74/425

(under subclass 424.5) Gearing of the worm type.

SEE OR SEARCH THIS CLASS, SUBCLASS:

383, 424.7, 424.8, 458+, and 500, for other screw or worm gearing.

396, for gearing having relatively movable axes.

411, for yieldability in gear trains.

497, for cam type motion translating steering posts.

SEE OR SEARCH CLASS 192, Clutches and Power-Stop Control,

56.1+, for torque responsive clutches which release on overload.

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

220, 229, 296, and 343 for worm and worm wheel gearing operated implements or apparatus.