US4143728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorized skateboard
Assignee: Individual
•
Filing: 1977-01-06
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Granted: 1979-03-13
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Expires: 1997-01-06
Abstract
Abstract A motorized skateboard having a drive axle with a drive wheel coupled to a prime mover and an idler wheel, wherein the drive wheel is made to support more weight than the idler wheel in order to improve the traction of the skateboard.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:52
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/01; A63C17/014; A63C17/015; A63C17/0073; A63C17/018; A63C17/12; A63C17/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A motorized skateboard, having a first end and a second end, comprising in combination: a skateboard board, an axle supporting a first end of said board, a drive axle supporting a second end of said board through a pivoting connection, said drive axle having a first end and a second end, a drive wheel rotateably supported on said first end of said drive axle, an idler wheel rotateably supported on said second end of said drive axle, and a prime mover coupled to said drive wheel, the improvement wherein the distance between said pivoting connection and said idler wheel is substantially longer than the distance between said pivoting connection and said drive wheel so that the weight supported by said drive wheel is substantially greater than the weight supported by said idler wheel for substantially increasing traction of said drive wheel.
Claim 2
Dependent Claim
141 words
A motorized skateboard, having a first end and a second end, comprising in combination: a skateboard board, an axle supporting a first end of said board, a drive axle supporting a second end of said board through a pivoting connection, said drive axle having a first end and a second end, a drive wheel rotateably supported on said first end of said drive axle, an idler wheel rotateably supported on said second end of said drive axle, and a prime mover coupled to said drive wheel, the improvement wherein the distance between said pivoting connection and said idler wheel is substantially longer than the distance between said pivoting connection and said drive wheel so that the weight supported by said drive wheel is substantially greater than the weight supported by said idler wheel for substantially increasing traction of said drive 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) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |