US PATENT SUBCLASS 254 / 369
.~.~ Drive includes ratchet wheel and interengaging driving pawl

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

264  DF  APPARATUS FOR HAULING OR HOISTING LOAD, INCLUDING DRIVEN DEVICE WHICH CONTACTS AND PULLS ON CABLE {4}
266  DF  .~ Device includes rotatably driven, cable contacting drum {34}
369.~.~ Drive includes ratchet wheel and interengaging driving pawl

DEFINITION

Classification: 254/369

Drive includes ratchet wheel and interengaging driving pawl:

(under subclass 266) Apparatus in which the drive includes a rotatable wheel having teeth formed on its perimeter and a pawl which is reciprocated along a linear or angular path by the power source, the pawl alternately engages the teeth and turns the wheel at least a portion of a revolution around its axis during movement in one of its directions and disengages the teeth during its return movement in the other direction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

217, for implements or apparatus for tensioning flexible material or for extracting stumps or poles including a rotatably driven drum provided with a drive having a ratchet wheel and an interengaging driving pawl.

SEE OR SEARCH CLASS

242, Winding, Tensioning, or Guiding,

256+, for a ratchet drive in a fishing reel and subclass 389 for a ratchet drive in a reeling device of general use.