# US 8,465,103 B2 · Self propelled transport device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,465,103 B2 - Document ID: US8465103B2 - Status: Granted - Kind: B2 - Application number: 12/986,857 - Filed: 2011-01-07 - Published: 2011-07-07 - Granted: 2013-06-18 - Earliest claimed: 2010-01-07 - Applicants: John Burt; Jacqueline Crozier - Inventors: John Burt; Jacqueline Crozier - Web page: https://patentgrep.com/patent/US8465103B2 ## CPC - B62D 55/06: with tracks without ground wheels - B62D 51/007: {the vehicle being of the endless track type (endless track vehicles in general B62D55/00)} - B62D 51/04: the driver walking - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) ## Abstract A transport device has a chassis with a front end and a rear end. The device has a continuous track supporting the chassis above a surface configured to move the chassis along the surface. A handle extends from the front end or rear end of the chassis and has a grip section positioned to be gripped by a user walking ahead of or behind the chassis. A motor is coupled and arranged to drive the continuous track and is operable by a user manipulating the handle. The worktop can be reconfigurable to at least two optional arrangements having different storage or support capabilities. The worktop can also be interchangeable with other different worktops having different storage or support capabilities. ## Claims ### Claim 1 A transport device comprising: a chassis having a front end, a rear end, and a worktop; a continuous track supporting the chassis above a surface and configured to move the chassis along the surface; a handle extending from the front end or rear end of the chassis and having a grip section positioned to be gripped by a user walking ahead of or behind the chassis; a motor coupled and arranged to drive the continuous track and operable by a user manipulating the handle; and a solar panel removably carried on part of the transport device, wherein the motor is an electric motor coupled to a battery that can be recharged by the solar panel. ### Claim 2 (depends on 1) A transport device according to claim 1, wherein the handle extends rearward from the rear end and is pushed forward to operate the motor to move the transport device forward and is pulled rearward to operate the motor to move the transport device rearward. ### Claim 3 (depends on 1) A transport device according to claim 1, wherein the chassis is configured to removably accept a plurality of optionally different worktops thereon. ### Claim 4 (depends on 1) A transport device according to claim 1, wherein the worktop is a wheelbarrow tub on the chassis. ### Claim 5 (depends on 1) A transport device according to claim 1, wherein the worktop has a work surface thereon, and wherein the work surface is pivotally connected to and tiltable forward about the front end of the chassis. ### Claim 6 (depends on 1) A transport device according to claim 1, wherein the worktop defines a storage surface thereon, and wherein a pair of side rails extend along opposed sides of the storage surface. ### Claim 7 (depends on 6) A transport device according to claim 6, wherein the side rails can be removed from the transport device. ### Claim 8 (depends on 6) A transport device according to claim 6, wherein the side rails can be pivoted inward and downward onto the worktop or outward and downward along opposed sides of the chassis or both. ### Claim 9 (depends on 1) A transport device according to claim 1, further comprising two of the tracks, one arranged adjacent each side of the chassis. ### Claim 10 (depends on 9) A transport device according to claim 9, further comprising two pairs of wheels, each pair having a front and a back wheel for driving a respective one of the two tracks, each wheel having an outer rim section fastened to and removable from an inner rim section. ### Claim 11 (depends on 10) A transport device according to claim 10, wherein the inner and outer rim sections each have an annular rim flange, and wherein each track is captured between the rim flanges of the inner and outer rim sections of the front and back wheel of each pair of wheels. ### Claim 12 (depends on 1) A transport device according to claim 1, wherein the grip section of the handle includes a trigger actuable to select and change the speed of the motor and has an actuator that can be actuated to select and change the motor direction between a forward direction and a reverse direction. ### Claim 13 (depends on 1) A transport device according to claim 1, wherein the handle can be collapsed down onto the worktop. ### Claim 14 (depends on 1) A transport device according to claim 1, wherein the chassis is a modular structure configured to removably support any selected one of a plurality of optional worktops thereon. ### Claim 15 (depends on 14) A transport device according to claim 14, wherein the plurality of optional worktops include two or more of a tub-shaped container, a multilevel storage surface, a generally planar platform, a reconfigurable storage surface, a multi-compartment storage box, and a seat. ### Claim 16 (depends on 1) A transport device according to claim 1, wherein the front end of the chassis has a generally vertical barrier, and wherein the barrier can be adjustably moved toward and away from the front end to extend a storage capacity of part of the worktop. ### Claim 17 (depends on 1) A transport device according to claim 1, wherein the worktop has an insulated chamber built into a portion of the chassis. ### Claim 18 A transport device comprising: a chassis having a front end, a rear end, and a worktop having a multilevel storage surface thereon, the multilevel storage surface comprising a first storage surface at a first elevation and a second storage surface at a second elevation different than the first elevation; a continuous track supporting the chassis above a surface and configured to move the chassis along the surface; a handle extending from the front end or rear end of the chassis and having a grip section positioned to be gripped by a user walking ahead of or behind the chassis; and a motor coupled and arranged to drive the continuous track and operable by a user manipulating the handle. ### Claim 19 (depends on 18) A transport device according to claim 18, wherein the handle extends rearward from the rear end and is pushed forward to operate the motor to move the transport device forward and is pulled rearward to operate the motor to move the transport device rearward. ### Claim 20 (depends on 18) A transport device according to claim 18, wherein the chassis is configured to removably accept a plurality of optionally different worktops thereon, the plurality of optionally different worktops including the worktop having the multilevel storage surface. ### Claim 21 (depends on 20) A transport device according to claim 20, wherein the plurality of optional worktops further includes one or more of a wheelbarrow tub, a generally planar platform, a reconfigurable storage surface, a multi-compartment storage box, and a seat. ### Claim 22 (depends on 18) A transport device according to claim 18, wherein the multilevel storage surface is pivotally connected to and tiltable forward about the front end of the chassis. ### Claim 23 (depends on 18) A transport device according to claim 18, further comprising two of the tracks, one arranged adjacent each side of the chassis.