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US 2003/0193233 A1Published application
Motorized hand truck for driving and steering a wheeled accessory
AssigneeMurray, Inc.
InventorRonald G. Brant
Life of this patent
Estimating the term…
Abstract
A hand truck is provided with at least one wheel which is driven and is steerable. A wheeled accessory is removably connected to the hand truck to be powered and directed in response to operation of the hand truck.
Claims18
A motorized hand truck for driving and steering a wheeled accessory, said hand truck comprising:
- at least one drive wheel rotatably supported by a frame;
- a handle joined to said frame for adjustably positioning the frame and the drive wheel for steering the truck;
- a motor operatively connected to the drive wheel for driving the wheel;
- and
- a connector mounted on said frame for permitting pivotal attachment of the hand truck to the wheeled accessory.
2 more elements
A motorized hand truck and wheeled accessory, wherein said hand truck comprises:
- at least one drive wheel rotatably supported by a first frame;
- a handle joined to said frame for adjustably positioning the frame and the drive wheel for steering the truck;
- a motor operatively connected to the drive wheel for driving the wheel;
- and
- a connector mounted on said first frame;
- and wherein said wheeled accessory comprises:
- a second frame pivotally attached to said connector;
- and
- at least two additional wheels on which said second frame rests.
6 more elements
Dependencies are inferred from the claim text.