US PATENT SUBCLASS 254 / 222
.~.~ With means for preventing or retarding rotation in at least one direction

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

199  DF  PORTABLE IMPLEMENTS OR APPARATUS FOR TENSIONING FLEXIBLE MATERIAL OR FOR EXTRACTING STUMPS OR POLES {12}
213  DF  .~ Including rotatably driven drum for engaging either material or force transmitting cable {9}
222.~.~ With means for preventing or retarding rotation in at least one direction {1}
223  DF  .~.~.~> Ratchet wheel or formation and pawl

DEFINITION

Classification: 254/222

With means for preventing or retarding rotation in at least one direction:

(under subclass 213) Implements or apparatus including means (e.g., a shiftable stop or lock) for preventing or retarding movement of the drum about its axis in at least one of its directions of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

310, 321+, 356+, and 378+, for load-hauling or-hoisting apparatus including a rotatably driven drum provided with means for preventing or retarding rotation of the drum in at least one direction.