US PATENT SUBCLASS 280 / 43
.~.~ Vertically adjustable wheels

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

29  DF  WHEELED {21}
638  DF  .~ Extensible {6}
43.~.~ Vertically adjustable wheels {8}
46  DF  .~.~.~> Tongue
47  DF  .~.~.~> Wheel adjusted by its own power
43.1  DF  .~.~.~> Tiltable vehicle stabilized by attendant or article
43.11  DF  .~.~.~> Load surface below wheel axis
43.12  DF  .~.~.~> Pallet truck type
43.13  DF  .~.~.~> Interconnecting means for adjusting wheels on different axles {2}
43.17  DF  .~.~.~> With actuator {6}
43.24  DF  .~.~.~> With nonwheel means for engaging the supporting surface

DEFINITION

Classification: 280/43

(under subclass 638) Vehicle comprising a running gear and wheel means, and means whereby the wheel means may be selectively held in different positions vertically relative to the running gear.

(1) Note. Running gear is defined as the structural assembly connecting a wheel to a vehicle body, chassis, or

frame comprising an axle, control arm, link, shock absorber, spring, strut, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5.5+, for a vehicle including suspension modification enacted as a result of a force encountered during travel, especially subclass 5.514 where the modification provides a regulation of riding or suspension height.

5.28, for adjustable running gear adapted to render a vehicle capable of ascending a step or abutment.

6.15+, for a vehicle including means, interposed between the vehicle body, chassis or frame and running gear thereof, for altering height or levelness of the vehicle body, chassis, or frame, especially subclasses 6.157+ wherein the height or levelness regulation is for the proximate utility of positioning the vehicle body, chassis, or frame in a posture to enable proper operation of the suspension mechanism. 83, for vertically adjustable tongue trucks.

86.5, for a general utility wheeled land vehicle including an auxiliary axle assembly which is selectively deployed in either a use or nonuse position so as to assist the primary running gear when in the use position.

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning,

354+, for a vertically adjustable work contacting nozzle supporting carriage for vacuum cleaners.

16, Miscellaneous Hardware,

19, for vertically adjustable casters used to support furniture or the like on a floor.

56, Harvesters,

208+, for platform adjustments for harvesters involving vertically adjustable wheels.

111, Planting,

52+, for vertically adjustable ground supports for frames of drilling machines for planting operations.

171, Unearthing Plants or Buried Objects, 139, for unearthing apparatus having a frame and vertically adjustable wheels.

172, Earth Working,

395+, for devices comprising an earth working element, a mounting frame therefor, and a vertically adjustable ground support for said frame. The earth working element must be separately mentioned in the body of the claim for classification in Class 172. A claim merely to a frame and relatively adjustable vertical wheels is classified in Class 280 even if the device is identified as an earth working implement in the claim preamble.

180, Motor Vehicles,

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; and subclass 209 for a motor vehicle having a special wheel base and provided with means which may comprise means for changing the number of wheels utilized to support the vehicle, which change may involve moving at least one of the wheels vertically.

254, Implements or Apparatus for Applying Pushing or Pulling Force,

2+, for hoisting trucks. The devices comprise wheeled hoists comprising a running gear and a load support and means for vertically adjusting said load support other than a means for vertically adjusting said load support by vertical adjustment of the wheels relative to the running gear.

472, Amusement Devices, particularly

15, for an occupant propelled roundabout used as a trainer for foot travel.

482, Exercise Devices, particularly

66+, for an occupant support frame having a movement facilitating feature for foot travel.