US PATENT SUBCLASS 280 / 47.21
.~.~.~ With shiftable main axle support


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

29  DF  WHEELED {21}
47.131  DF  .~ Tiltable vehicles, stabilized by attendant or article {6}
47.17  DF  .~.~ Handle-propelled vehicles {8}
47.21.~.~.~ With shiftable main axle support {1}
47.22  DF  .~.~.~.~> Spring suspension


DEFINITION

Classification: 280/47.21

(under subclass 47.17) Vehicles in which the axle or axles about which the body is tiltable are shiftable or adjustable to vary the axle and wheel position relative to the body or to the center of gravity of its load, either to facilitate loading or transporting the load.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6.151+, 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 for the proximate utility of facilitating cargo movement.

43+, for wheels adjustable to vary the elevation of the load frame.

47.16, and 47.2, for vehicles with auxiliary wheels shiftable to and from a ground engaging position to provide alternate wheel bases.