US4114952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel assembly for a skateboard or the like
Assignee: Mattel Inc
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Filing: 1976-11-05
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Granted: 1978-09-19
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Expires: 1996-11-05
Abstract
Abstract A wheel assembly for a skateboard or the like, the wheel assembly having a cylindrical hub with a central aperture having a bearing receiving end and an internally threaded end. A tire having a central aperture with a main portion and an enlarged recess adjacent one end thereof, the main portion and the outer surface of the hub being matingly configured to prevent relative rotation therebetween with the tire mounted on the hub. A hub cap is provided with a threaded body for matingly engaging the internally threaded end of the hub, and a cap portion configured for being received within the recess of the tire, the outer periphery of the cap portion and the inner periphery of the recess being matingly configured with coacting ridges and detents so that upon securing the wheel to the hub the hub cap is prevented from loosening.
Inventors
- 👤 Steven Donald Kimmell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:46
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/01; A63C17/22; A63C17/226
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
185 words
In a wheel assembly for a skateboard or the like, the combination comprising: a hub having a central aperture with a bearing receiving end and an internally threaded end, the outer surface of said hub being provided with a plurality of spaced longitudinally extending ribs and a flange adjacent said bearing receiving end; a tire of a generally flexible material having a central aperture with a main portion and an enlarged recess, said main portion having grooves slidably engaging the ribs on the outer surface of said hub to prevent relative rotation therebetween; and a hub cap having a threaded portion and a cap portion having generally the same diameter as said recess, said threaded portion engaging the threaded end of said hub, said recess being provided with radially inwardly extending integral detent means about the periphery thereof and said cap portion being provided with radially projecting ridge means of a length to engage and resiliently distort said detent means when rotating said threaded portion relative to said threaded end whereby to secure said tire to said hub and prevent loosening of said hub cap.
Claim 2
Dependent Claim
185 words
In a wheel assembly for a skateboard or the like, the combination comprising: a hub having a central aperture with a bearing receiving end and an internally threaded end, the outer surface of said hub being provided with a plurality of spaced longitudinally extending ribs and a flange adjacent said bearing receiving end; a tire of a generally flexible material having a central aperture with a main portion and an enlarged recess, said main portion having grooves slidably engaging the ribs on the outer surface of said hub to prevent relative rotation therebetween; and a hub cap having a threaded portion and a cap portion having generally the same diameter as said recess, said threaded portion engaging the threaded end of said hub, said recess being provided with radially inwardly extending integral detent means about the periphery thereof and said cap portion being provided with radially projecting ridge means of a length to engage and resiliently distort said detent means when rotating said threaded portion relative to said threaded end whereby to secure said tire to said hub and prevent loosening of said hub cap.
Claim 3
Dependent Claim
22 words
The combination according to claim 1 wherein said hub outer surface and said tire central aperture are generally circular in cross section.
Claim 4
Dependent Claim
22 words
The combination according to claim 2, further including ball bearings within said bearing receiving end of the central aperture of said hub.
Claim 5
Dependent Claim
42 words
The combination according to claim 3 wherein said cap portion of said hub cap is provided with at least two axially extending recesses on the outer surface thereof for receiving a tool for rotating said hub cap to assemble said wheel assembly.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |