# US 7,610,972 B2 · Motorized transportation apparatus and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,610,972 B2 - Document ID: US7610972B2 - Status: Granted - Kind: B2 - Application number: 11/198,673 - Filed: 2005-08-04 - Published: 2006-02-09 - Granted: 2009-11-03 - Earliest claimed: 2004-08-04 - Assignees: Heeling Sports Limited - Inventors: Roger R. Adams; Patrick F. Hamner - Web page: https://patentgrep.com/patent/US7610972B2 ## CPC - A63C 17/22: Wheels for roller skates - A43B 3/34: with electrical or electronic arrangements - A43B 5/005: {for grinding, i.e. sliding on the sole or a part thereof} - A43B 5/1641: {characterised by the sole (skates with special foot-plates for the boot A63C1/22); characterised by the attachment of the skate (A43B5/1633 takes precedence; skates rigidly mounted to the sole of the boot A63C1/02)} - A63C 17/008: {with retractable wheel, i.e. movable relative to the chassis out of contact from surface} - A63C 17/02: with wheels arranged in two pairs {(for skateboards A63C17/015)} - A63C 17/06: single-track type - A63C 17/08: single-wheel type {with single axis} - A63C 17/12: with driving mechanisms - A63C 17/20: with fixable wheels permitting the skates to be used for walking - A63C 17/24: with ball-shaped or spherical running surfaces - A63C 2203/10: enabling folding, collapsing - A63C: SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE (water skis B63B32/00, B63B34/00) - A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR ## Abstract An exemplary motorized personal transportation apparatus is provided that may include a motorized heeling apparatus, a motorized heel bracket or a motorized wheel assembly. The motorized heeling apparatus may include a heeling apparatus and an electric motor mounted adjacent the heeling apparatus to impart forward rotation to at least one wheel adjacent the heel of a footwear to allow walking/running on forefoot, and transition to passive rolling and then electric powered rolling. The motorized heel bracket may include a heel support structure, which may be incorporated in footwear, for supporting at least a portion of the user's heel, wheel(s) mounted adjacent the heel bracket, and an electric motor positioned adjacent the heel support structure and operable to impart forward rotation to the wheel(s). The motorized wheel assembly includes an electric motor with a wheel around the motor such that the casing or external housing rotates to impart rotation to the wheel assembly. The wheel assembly may be used in virtually any transportation apparatus moving platforms, and footwear. ## Claims ### Claim 1 A motorized footwear for use on a surface, the motorized footwear comprising: a motorized wheel assembly operable to propel the motorized footwear in a forward direction when electrical power is provided, and operable to roll in a forward direction when power is not provided, the motorized wheel assembly includes: an electric motor that includes a housing that at least partially surrounds a motor coil, wherein the electric motor is operable to rotate at least a portion of the housing that is provided in a generally cylindrical shape in a forward rotational direction around the motor coil in response to applying electrical power to the electric motor, a wheel positioned around the at least a portion of the housing that is provided in a generally cylindrical shape, and operable to rotate with the housing in the forward rotational direction when electrical power is applied to the electric motor, and wherein the wheel and the housing that is a generally cylindrical shape are operable to serve as a roller to roll on the surface; a battery operable to provide electrical power to the electric motor of the motorized wheel assembly; a throttle operable to control the speed of the rotation of the roller by controlling the amount of electrical power provided to the electric motor of the motorized wheel assembly; a footwear that includes a sole with a forefoot portion, an arch portion and a heel portion, the heel portion having a bottom surface and an opening formed therein; and wherein the roller is positioned adjacent and within the opening in the bottom surface of the heel portion of the sole such that, in use, in an electric powered rolling mode, the roller provides contact with the surface to allow a user to roll in the forward direction on the surface while electrical power is applied to the electric motor to rotate the roller in the forward rotational direction, and wherein the roller, in a passive rolling mode, provides contact with the surface to allow the user to impart roll to the roller in the forward rotational direction on the surface while electrical power is not applied to the electric motor. ### Claim 2 (depends on 1) The motorized footwear of claim 1, further comprising: a second motorized wheel assembly that includes a second wheel positioned around at least a portion of a second motor housing, of a second electrical motor, that is provided in a generally cylindrical shape, and operable to rotate with the second motor housing in the forward rotational direction when electrical power is applied to the second electric motor, and wherein the second wheel and the second motor housing are operable to serve as a second roller to roll on the surface both when electrical power is applied to the second electric motor and when electrical power is not applied to the second electric motor; and wherein the second roller is positioned adjacent and within an opening in the bottom portion of the forefoot portion of the sole such that, in use, in an electric powered rolling mode, the second roller provides contact with the surface to allow the user to roll in the forward direction on the surface while the second electric motor is engaged to rotate the second roller in the forward rotational direction. ### Claim 3 (depends on 1) The motorized footwear of claim 1, further comprising: a second roller positioned adjacent and within an opening in a bottom surface of the forefoot portion of the sole of the footwear, and wherein the second roller is operable to rotate in the forward rotational direction to allow the user to roll in the forward direction on the surface. ### Claim 4 (depends on 1) The motorized footwear of claim 1, wherein the wheel contains urethane. ### Claim 5 (depends on 1) The motorized wheel assembly of claim 1, wherein the wheel contains plastic. ### Claim 6 (depends on 1) The motorized wheel assembly of claim 1, wherein the wheel contains rubber. ### Claim 7 (depends on 1) The motorized wheel assembly of claim 1, wherein the electric motor is a brushless dc motor.