US PATENT SUBCLASS 180 / 209
.~ With means for changing number of supporting wheels, or for adjusting relative location thereof


Current as of: June, 1999
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180 /   HD   MOTOR VEHICLES

21  DF  SPECIAL WHEEL BASE {6}
209.~ With means for changing number of supporting wheels, or for adjusting relative location thereof


DEFINITION

Classification: 180/209

With means for changing number of supporting wheels, or for adjusting relative location thereof:

(under subclass 21) Vehicle provided either with means whereby the number of wheels which engage the ground for supporting the vehicle may be decreased or increased, or with means whereby the position of at least one wheel relative to at least one other wheel may be changed.

(1) Note. See (1) Note through (4) Note of subclass 21 above.

(2) Note. "Supporting wheels" is interpreted to include not

only the wheels which engage the ground while the vehicle is traveling in normal fashion, but also any other wheels which may be moved, relative to the vehicle, into engagement with the ground (e.g., to maintain a two-wheeled vehicle in its operating attitude at such time as it becomes unstable as a result of slowing or stopping).

(3) Note. A vehicle having four wheels, which wheels are so arranged as to form a nonspecial (i.e., a rectangular) wheel base, and provided with means inherently capable of so rearranging or respacing the wheels as to change the wheel base to a special one, is proper for this subclass, regardless of whether or not such a change is expressed in "wheel base" terminology.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11+, for a motor vehicle provided with an attachment in the nature of a motor-carrying frame, which attachment is supported in part by the vehicle.

15, for a motor vehicle provided with at least one traction wheel which does not constitute one of the main supporting wheels of the vehicle. 16, for a motor vehicle provided with an attachment in the nature of a traction-wheel-carrying frame, the traction wheels of which replace the vehicle's original traction wheels as vehicle supporting members.

24.02, for a motor vehicle having a wheel arrangement comprising five or more wheels and wherein one of the wheels is adjustably, or otherwise, mounted to move vertically for the purpose of modifying the proportion of the load imposed upon at least one other wheel of the vehicle.

200+, for a motor vehicle provided with powered, ground-engaging means for producing, or assisting in the production of, lateral movement of the vehicle (e.g., for parking) and wherein the means comprises a rotatably driven auxiliary wheel or endless track.

SEE OR SEARCH CLASS

280, Land Vehicles,

86.5, for a general utility wheeled land vehicle including an auxiliary axle assembly movable between a use and a nonuse position; subclass 149.2 for a general utility wheeled land vehicle including longitudinally shiftable running gear; or subclasses 638+ for a general utility wheeled land vehicle including means for altering a dimension of the vehicle or a part thereof.