US PATENT SUBCLASS 254 / 204
.~.~ Including screw drive

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}
200  DF  .~ Material comprises resilient floor covering (e.g., carpet) {8}
204.~.~ Including screw drive

DEFINITION

Classification: 254/204

Including screw drive:

(under subclass 200) Implements or apparatus in which the portion of the implement or apparatus adapted to contact the resilient fabric or structure is moved by driving structure including a threaded, cylindrical rod which either (a) rotates to move a cooperating threaded rider (e.g., follower) along its longitudinal axis, or (b) is axially shifted by, and relative to, a cooperating, rotating, force-transmitting, threaded element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

85, 92, 98+, and 231+, for implements or apparatus including a screw drive.