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US 6,659,565 B2Granted
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 propelling 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 to propel the truck;
- and
- a pivot 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 first frame and the drive wheel for steering the truck;
- a motor operatively connected to the drive wheel for driving the wheel to propel the truck;
- and
- a pivot 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, said additional wheels and the pivotal attachment of the second frame to said connector permitting the accessory to be propelled when the drive wheel is driven and to be steered in response to steering of the truck.
6 more elements
Dependencies are inferred from the claim text.