US4070065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel for skateboards and roller skates
Assignee: Individual
•
Filing: 1976-07-08
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Granted: 1978-01-24
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Expires: 1996-07-08
Abstract
Abstract A molded plastic wheel is formed with a thin annular groove extending inwardly from its outboard end so as to provide a resiliently yieldable, radially thin peripheral tread portion backed up by a thick relatively rigid band of material on the radially inward side of the groove.
Inventors
- 👤 Vernon Heitfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:41
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/22
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
170 words
A wheel of molded plastic material having inboard and outboard end portions adapted to be inwardly and outwardly disposed on a vehicle and a central cylindrical aperture extending axially from end-to-end therethrough with a bearing member therein and a cylindrical tread surface around the outer periphery of the wheel, and annular groove means extending inwardly from the outboard end of the wheel for about three-eighths of the axial length of the wheel and providing a relatively thin flexible band of material between the groove means and the tread surface which in normal use will yield and flatten out against the ground to thereby increase the amount of tread upon the ground, the material between the groove means and the central aperture underlying the entire length of the thin flexible band of material and being substantially thicker, as measured radially, than the thin flexible band of material, the material of said wheel between said tread surface and said central aperture, save for said groove means and said central aperture, being solid.
Claim 2
Dependent Claim
170 words
A wheel of molded plastic material having inboard and outboard end portions adapted to be inwardly and outwardly disposed on a vehicle and a central cylindrical aperture extending axially from end-to-end therethrough with a bearing member therein and a cylindrical tread surface around the outer periphery of the wheel, and annular groove means extending inwardly from the outboard end of the wheel for about three-eighths of the axial length of the wheel and providing a relatively thin flexible band of material between the groove means and the tread surface which in normal use will yield and flatten out against the ground to thereby increase the amount of tread upon the ground, the material between the groove means and the central aperture underlying the entire length of the thin flexible band of material and being substantially thicker, as measured radially, than the thin flexible band of material, the material of said wheel between said tread surface and said central aperture, save for said groove means and said central aperture, being solid.
Claim 3
Dependent Claim
49 words
A wheel as claimed in claim 1, said bearing member comprising an annular flange affixed within said central aperture, said flange being disposed radially inward of that portion of the wheel material which lies between the inner end of the groove means and the inboard end of the wheel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |