US4062557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eight wheel skateboard
Assignee: Individual
•
Filing: 1976-08-19
•
Granted: 1977-12-13
•
Expires: 1996-08-19
Abstract
Abstract A skateboard has front and rear trucks each supporting four wheels centrally pivoted to the axle on the undercarriages of the skateboard normally provided for the conventional type front and rear wheels. Each truck can rock about its central pivot on the axis and thereby reduce the amplitude of small bumps experienced by the board successively passed over by the leading and trailing wheels of each truck.
Inventors
- 👤 Harry F. Roden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:51
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/01; A63C17/011; A63C17/012; A63C17/014
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
An eight-wheel skateboard having front and rear under carriage structures supporting front and rear axles; and front and rear wheel trucks, each of said wheel trucks comprising a rectangular frame including longitudinal and transverse sides, and having four wheels rotatably mounted adjacent to its four corners, respectively, an intermediate point of each of the longitudinal sides of said rectangular frame being pivoted to the axle of an associated under carriage for rocking movement; and, stop means secured to the front and rear under carriage structures and passing over the innermost transverse sides of the rectangular frames to limit the rocking movement of the trucks to a given degree.
Claim 2
Dependent Claim
108 words
An eight-wheel skateboard having front and rear under carriage structures supporting front and rear axles; and front and rear wheel trucks, each of said wheel trucks comprising a rectangular frame including longitudinal and transverse sides, and having four wheels rotatably mounted adjacent to its four corners, respectively, an intermediate point of each of the longitudinal sides of said rectangular frame being pivoted to the axle of an associated under carriage for rocking movement; and, stop means secured to the front and rear under carriage structures and passing over the innermost transverse sides of the rectangular frames to limit the rocking movement of the trucks to a given degree.
Claim 3
Dependent Claim
59 words
A skateboard according to claim 1, in which each stop means comprises a hair-pin shaped wire having the ends of its arms secured to an associated under carriage and its loop portion receiving the innermost transverse side of the rectangular frame associated with said carriage, the length of the hair-pin shaped wire defining the given degree of rocking movement.
Claim 4
Dependent Claim
33 words
A skateboard according to claim 1, in which the trailing wheels on each truck are mounted further apart than the leading wheels to increase the stability of the skateboard in a transverse direction.
References Cited (Backward Citations)
US1247801A
Cited
US2581809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |