# US 2014/0191484 A1 · Wheel Attachment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191484 A1 - Document ID: US20140191484A1 - Status: Published application - Kind: A1 - Application number: 14/149,699 - Filed: 2014-01-07 - Published: 2014-07-10 - Earliest claimed: 2013-01-08 - Inventors: MICHAEL JOHN MABE - Web page: https://patentgrep.com/patent/US20140191484A1 ## CPC - B62D 61/12: with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels (for manoeuvring purposes only B60S) - B62B 5/00: Accessories or details specially adapted for hand carts ({B62B3/1404} , B62B9/00 take precedence; wheels, axles, or axle bearings for vehicles B60B; castors for vehicles, castors in general B60B33/00) - B62M 6/00: Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor - B62M 7/16: {with wheel of unit driven by the engine} - B62B 5/003: {Combustion engines} - B62B 5/0033: {Electric motors} - B62K 2204/00: Adaptations for driving cycles by electric motor - 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) - B62B: HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES (characterised by animal propulsion B62C; propulsion of sledges by driver or engine B62M) - B62M: RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general B60K; transmission elements per se F16) - B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE ## Abstract An apparatus for adding a propulsion wheel to a land based vehicle. When the apparatus is attached to a land based vehicle the apparatus is operationally configured to bias a propulsion wheel attached thereto to a position of engagement with a travel surface supporting the land based vehicle thereon. ## Claims ### Claim 1 An apparatus for adding a propulsion wheel to a land based vehicle effective to move across a travel surface, when attached to the land based vehicle the apparatus is operationally configured to bias a propulsion wheel attached to the apparatus in an engagement position with the travel surface. ### Claim 2 An apparatus for adding a propulsion wheel to a land based vehicle effective to move across a travel surface, when attached to the land based vehicle the apparatus is operationally configured to adjust the amount of bias applied by a propulsion wheel attached to the apparatus against the travel surface. ### Claim 3 (depends on 2) The apparatus of claim 2 wherein the apparatus is operationally configured to direct the propulsion wheel between one or more engagement positions with the travel surface and one or more disengagement positions apart from the travel surface. ### Claim 4 (depends on 1) The apparatus of claim 1 wherein the apparatus includes a first part operationally configured to attach to the land based vehicle and a second part operationally configured to receive a propulsion wheel in attachment thereto, the second part being pivotally attached to the first part. ### Claim 5 (depends on 4) The apparatus of claim 4 wherein the apparatus includes a biasing member in communication with the second part. ### Claim 6 (depends on 5) The apparatus of claim 5 wherein the second part includes a pivot axle in communication with the biasing member. ### Claim 7 (depends on 5) The apparatus of claim 5 wherein the biasing member is an actuator. ### Claim 8 (depends on 5) The apparatus of claim 5 wherein the biasing member is a worm gear screw jack. ### Claim 9 (depends on 5) The apparatus of claim 5 further including a housing member operationally configured to secure a power source for the propulsion wheel to the land based vehicle. ### Claim 10 (depends on 4) The apparatus of claim 4 wherein the second part is a wheel stay. ### Claim 11 A method of biasing a propulsion wheel against a travel surface of a land based vehicle, the method comprising the following steps: attaching to a land based vehicle an apparatus and propulsion wheel rotatably attached thereto, the apparatus having a biasing member for pivoting at least part of the apparatus about the land based vehicle in a manner effective to direct the propulsion wheel between one or more engagement positions and one or more disengagement positions with the travel surface; and directing the propulsion wheel to a first biased position against the travel surface.