US PATENT SUBCLASS 280 / 220
.~.~.~ Movable occupant support

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
200  DF  .~ Occupant propelled type {8}
210  DF  .~.~ With propulsion means {15}
220.~.~.~ Movable occupant support {2}
221  DF  .~.~.~.~> Interconnected with propulsion means {4}
229  DF  .~.~.~.~> Eccentrically mounted wheels

DEFINITION

Classification: 280/220

(under subclass 210) Vehicles in which the occupant support moves during the propulsion of the vehicle to facilitate its propulsion. The movable support usually is capable of propelling or assisting to propel the vehicle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1.191+, for similar vehicles of the simulation type.

218, for steppers and other nonsimulating velocipedes in which the supports advance alternately.

SEE OR SEARCH CLASS

185, Motors: Spring, Weight, or Animal Powered,

15.5, for motors operated by a pivoted seat. 297, Chairs and Seats,

195.1+, for a saddle type seat, subclasses 285+ for a resiliently mounted seat back, and subclass 312 for seat bottom having resiliently mounted independently movable sections.