# US 10,118,439 B1 · Wheel having a sinusoidal circumference > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,439 B1 - Document ID: US10118439B1 - Status: Granted - Kind: B1 - Application number: 14/953,218 - Filed: 2015-11-27 - Granted: 2018-11-06 - Earliest claimed: 2015-11-27 - Assignees: Shark Wheel, Inc. - Applicants: David Michael Patrick; Robert Steven Patrick - Inventors: David Michael Patrick; Robert Steven Patrick - Web page: https://patentgrep.com/patent/US10118439B1 ## CPC - B60B 15/025: {with non-cylindrical shape} - B60B 15/00: Wheels or wheel attachments designed for increasing traction (vehicle tyres B60C; non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels B60C27/00) - B60B 15/02: Wheels with spade lugs - B60B 15/023: {being of the broad form type} - B60B 21/00: Rims (non-metallic B60B5/00; of high resiliency B60B9/00; capable of carrying more than one tyre B60B11/04; multiple rims on a single wheel body B60B11/06; of multi-part type B60B25/00; metal tyres B60C) - B60B 21/02: characterised by transverse section - B60B 21/10: characterised by the form of tyre-seat or flange, e.g. corrugated (B60B21/02 takes precedence) - B60B 11/02: Units of separate wheels mounted for independent or coupled rotation - B60B 11/06: Wheels with more than one rim mounted on a single wheel body - B60B 25/006: {Rims split symmetrically} - B60B 2360/10: Metallic materials - B60B 2360/30: Synthetic materials - B60B 2900/1212: due to friction - B60B 2900/1216: due to air-drag - B60B 2900/311: Rigidity or stiffness - B60Y 2200/10: Road Vehicles - Y02T 10/86: Optimisation of rolling resistance, e.g. weight reduction - Y02T 10/88: Optimized components or subsystems, e.g. lighting, actively controlled glasses - B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A circular wheel is aligned in a rotational plane and has a peripheral outfacing surface symmetrical about the plane of rotational. A center line of the width of the peripheral outfacing surface is sinusoidal around the wheel. The wheel may have a central hub, a rim, a medial wheel structure between the hub and the rim, and a tire mounted on the rim. The outfacing surface may be that of the hub, the medial wheel structure, the rim, or the tire depending on the application. ## Claims ### Claim 1 A vehicular wheel for axial load bearing and load transfer to a supporting surface, said vehicular wheel has a wheel width, an axis of rotation, and orthogonal thereto, a plane of symmetry, said vehicular wheel comprising: a single peripheral surface encircling said axis of rotation, wherein said peripheral surface is sinusoidally and symmetrically divergent about said plane of symmetry in plural sinusoidal cycles, having a constant sinusoidal amplitude peak and a constant sinusoidal period; wherein, said peripheral surface is convex across a width of said peripheral surface, and is spaced apart from said plane of symmetry at each sinusoidal amplitude peak by a space equal to one-half of said width of said peripheral surface. ### Claim 2 (depends on 1) The vehicular wheel of claim 1 wherein said peripheral surface width is equal to one-third of a full width of said wheel width. ### Claim 3 (depends on 1) The vehicular wheel of claim 1 wherein a structure supporting said peripheral surface has spokes, wherein said spokes are aligned with said plane of symmetry. ### Claim 4 (depends on 1) The vehicular wheel of claim 1 wherein a structure supporting said peripheral surface is disc shaped. ### Claim 5 A pair of vehicular wheels for axial load bearing and load transfer to a supporting surface, wherein each one of said wheels has a wheel width, an axis of rotation, and orthogonal thereto, planes a plane of symmetry, said vehicular wheels each comprising: a single peripheral surface encircling said axis of rotation, wherein said peripheral surface is sinusoidally and symmetrically divergent about said plane of symmetry in plural sinusoidal cycles, having a constant sinusoidal amplitude peak and a constant sinusoidal period; wherein, said peripheral surface has is convex across a width of said peripheral surface, and is spaced apart from said plane of symmetry at each sinusoidal amplitude peak by a space equal to one-half of said width of said peripheral surface. ### Claim 6 (depends on 5) The vehicular wheels of claim 5 wherein each, said peripheral surface width is equal to one-third of said wheel width. ### Claim 7 (depends on 5) The vehicular wheels of claim 5 wherein at least one wheel of said pair of vehicular wheels has a spoked structure supporting said peripheral surface, wherein said spoked structure comprises spokes wherein said spokes are aligned with said plane of symmetry. ### Claim 8 (depends on 5) The vehicular wheels of claim 5 wherein at least one wheel of said pair of vehicular wheels has a disk structure supporting said peripheral surface. ### Claim 9 (depends on 5) The vehicular wheels of claim 5 wherein said sinusoidal amplitude peaks of said wheels are rotationally aligned and spaced apart by said width of said peripheral surface.