US PATENT SUBCLASS 248 / 404
.~.~.~ With force multiplying means

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

Internet Version by PATENTEC © 1999      Terms of Use


248 /   HD   SUPPORTS

127  DF  STAND {14}
158  DF  .~ Standard type {4}
161  DF  .~.~ Adjustable vertically {6}
404.~.~.~ With force multiplying means {1}
405  DF  .~.~.~.~> Screw and nut {1}

DEFINITION

Classification: 248/404

(under subclass 161) Device in which the standard is moved vertically by a means which employs a mechanical advantage, e.g., gears or hydraulic motors.

SEE OR SEARCH THIS CLASS, SUBCLASS:

422, for similar vertical adjustment means in a stand or stool other than standard type.

SEE OR SEARCH CLASS

254, Implements or Apparatus for Applying Pushing or Pulling Force, appropriate subclasses for lift implements, such as jacks containing force multiplying means.

297, Chairs and Seats,

423.20+, for a seat including a bottom and back vertically movable as a unit by force multiplying means.