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US 11,052,879 B2Granted
Apparatus and methods for powered trailer dollies
AssigneeParkit360 Inc.
InventorStephen Houle
Life of this patent
Estimating the term…
Abstract
Power dollies can be used for moving moveable objects such as trailers. A power dolly could include a frame, a mount and a plurality of wheel sets. The mount could couple the power dolly to a moveable object. One or more of the plurality of wheels sets could be powered. The plurality of wheels sets could be separated into a primary wheel set and one or more support wheel sets. The wheels of the primary wheel set could extend farther from the frame that the wheels of the support wheel sets.
Claims22
A power dolly comprising:
- a frame comprising a first end, a second end, a first side and a second side, a lengthwise direction of the dolly being defined between the first end and the second end;
- a mount coupled to the frame;
- a tow hitch coupled to the mount;
- and
- a plurality of powered wheel sets, coupled to the frame, to provide drive to the power dolly, the plurality of powered wheel sets comprising:
- a primary wheel set coupled to the frame between the first end and the second end, the primary wheel set comprising a first wheel coupled toward the first side of the frame relative to the mount and a second wheel coupled toward the second side of the frame relative to the mount, wherein the mount is coupled to the frame to position the tow hitch lengthwise substantially between the first wheel and the second wheel;
- a first support wheel set coupled to the frame toward the first end of the frame relative to the primary wheel set;
- and
- a second support wheel set coupled to the frame toward the second end of the frame relative to the primary wheel set.
6 more elements
A power dolly comprising:
- a frame comprising a first end, a second end, a first side and a second side, a lengthwise direction of the dolly being defined between the first end and the second end;
- a mount coupled to the frame;
- a tow hitch coupled to the mount;
- and
- a plurality of wheel sets coupled to the frame, the plurality of wheel sets comprising:
- a powered primary wheel set, coupled to the frame between the first end and the second end, to provide drive to the power dolly, the primary wheel set comprising a first wheel coupled toward the first side of the frame relative to the mount and a second wheel coupled toward the second side of the frame relative to the mount, wherein the mount is coupled to the frame to position the tow hitch lengthwise substantially between the first wheel and the second wheel;
- a first support wheel set coupled to the frame toward the first end of the frame relative to the primary wheel set, the first support wheel set comprising a third wheel coupled toward the first side of the frame relative to the mount and a fourth wheel coupled toward the second side of the frame relative to the mount;
- and
- a second support wheel set coupled to the frame toward the second end of the frame relative to the primary wheel set, the second support wheel set comprising a fifth wheel coupled toward the first side of the frame relative to the mount and a sixth wheel coupled toward the second side of the frame relative to the mount, wherein
- the primary wheel set extends farther from the frame than the first support wheel set and the second support wheel set.
7 more elements
A method comprising:
- providing a frame for a power dolly, the frame comprising a first end, a second end, a first side and a second side, a lengthwise direction of the dolly being defined between the first end and the second end;
- providing a mount;
- providing a tow hitch to couple to the mount;
- and
- providing a plurality of powered wheel sets to provide drive to the power dolly, the plurality of powered wheel sets comprising:
- a primary wheel set coupled to the frame between the first end and the second end, the primary wheel set comprising a first wheel coupled toward the first side of the frame relative to the mount and a second wheel coupled toward the second side of the frame relative to the mount, wherein the mount is coupled to the frame to position the tow hitch lengthwise substantially between the first wheel and the second wheel;
- a first support wheel set coupled to the frame toward the first end of the frame relative to the primary wheel set;
- and
- a second support wheel set coupled to the frame toward the second end of the frame relative to the primary wheel set.
6 more elements
Dependencies are inferred from the claim text.