US4061350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skateboard
Assignee: Dayco Products LLC
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Filing: 1976-09-01
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Granted: 1977-12-06
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Expires: 1996-09-01
Abstract
Abstract A skateboard is provided which has a longitudinal axis and comprises a support member having a top support surface and a bottom surface, a pair of projections fixed to and extending from the member beneath the bottom surface, a pair of wheel assemblies each fastened to an associated projection, and fastening apparatus for fastening each of the wheel assemblies to an associated projection with each fastening apparatus being disposed entirely beneath the bottom surface and comprising components allowing resilient pivoting movement of its wheel assembly in a controlled manner for improved turning of the skateboard and the fastening apparatus includes a pair of resilient elastomeric strips disposed on opposite sides of an axle associated with each wheel assembly with the strips confining its axle within an elongate slot provided in an associated projection.
Inventors
- 👤 Ernest J. Schmidt, Jr.
- 👤 Michael G. Rinehart
- 👤 Bascom D. Blevins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:26
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/01; A63C17/011; A63C17/012; A63C17/014; A63C17/015
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
234 words
A skateboard having a longitudinal axis and comprising, a support member having a top support surface and a bottom surface, a pair of projections fixed to and extending from said member beneath said bottom surface, a pair of wheel assemblies each fastened to an associated projection, and fastening means for fastening each of said wheel assemblies to an associated projection with each fastening means being disposed entirely beneath said bottom surface and comprising means allowing resilient pivoting movements of its wheel assembly in a controlled manner for improved turning of said skateboard, each of said fastening means in each projection comprising an elongate slot extending transversely through its associated projection, said elongate slots being inclined in opposed directions, each of said slots being defined by a pair of spaced planar surfaces adjoined at opposite ends thereof by interconnecting surfaces, each of said wheel assemblies comprising an axle having a central portion provided with a cooperating surface which engages an associated planar surface of its projection, said associated planar surface engaging said cooperating surface holding the axle against rotation relative to its projection, said fastening means further comprising a pair of resilient elastomeric strips disposed on opposite sides of its axle confining its axle within its elongate slot, each strip having portions thereof compressed during turning of the skateboard with the compressed portions serving to restore the associated axle to its original position after turning.
Claim 2
Dependent Claim
234 words
A skateboard having a longitudinal axis and comprising, a support member having a top support surface and a bottom surface, a pair of projections fixed to and extending from said member beneath said bottom surface, a pair of wheel assemblies each fastened to an associated projection, and fastening means for fastening each of said wheel assemblies to an associated projection with each fastening means being disposed entirely beneath said bottom surface and comprising means allowing resilient pivoting movements of its wheel assembly in a controlled manner for improved turning of said skateboard, each of said fastening means in each projection comprising an elongate slot extending transversely through its associated projection, said elongate slots being inclined in opposed directions, each of said slots being defined by a pair of spaced planar surfaces adjoined at opposite ends thereof by interconnecting surfaces, each of said wheel assemblies comprising an axle having a central portion provided with a cooperating surface which engages an associated planar surface of its projection, said associated planar surface engaging said cooperating surface holding the axle against rotation relative to its projection, said fastening means further comprising a pair of resilient elastomeric strips disposed on opposite sides of its axle confining its axle within its elongate slot, each strip having portions thereof compressed during turning of the skateboard with the compressed portions serving to restore the associated axle to its original position after turning.
Claim 3
Dependent Claim
113 words
A skateboard as set forth in claim 1 in which each projection has a groove extending parallel to said axis bisecting the width of the projection and bisecting its slot, each of said axles has a portion provided with an annular groove defined by an outwardly concave annular surface, and said fastening means further comprises a fastening pin which is disposed in said groove and has a part thereof pierced through at least one of said strips and engaging said outwardly concave annular surface in point-to-point contact therewith enabling its axle to pivot in a substantially unobstructed manner during turning of said skateboard while preventing axial movement of the axle along its projection.
Claim 4
Dependent Claim
33 words
A skateboard as set forth in claim 2 in which the central portion of each axle has a hexagonal cross-sectional configuration and has said outwardly concave annular surface provided in the center thereof.
Claim 5
Dependent Claim
33 words
A skateboard as set forth in claim 2 in which the central portion of each axle has a square cross-sectional configuration and has said outwardly concave annular surface provided in the center thereof.
Claim 6
Dependent Claim
26 words
A skateboard as set forth in claim 2 in which each of said strips is made of a rubber material and has a rectangular cross-sectional configuration.
Claim 7
Dependent Claim
27 words
A skateboard as set forth in claim 2 in which each of said strips is made of a synthetic plastic material and has a rectangular cross-sectional configuration.
Claim 8
Dependent Claim
56 words
A skateboard as set forth in claim 2 in which said fastening pin is a staple-like member having a U-shaped configuration defined by a bight and a pair of parallel legs extending from opposite ends of said bight and said part of said fastening pin pierced through one of said strips is one of said legs.
Claim 9
Dependent Claim
34 words
A skateboard as set forth in claim 7 in which said fastening pin is made of metal and each of said legs has sharp pointed ends disposed within the peripheral outline of its projection.
Claim 10
Dependent Claim
31 words
A skateboard as set forth in claim 2 in which each of said wheel assemblies comprises a pair of wheels each rotatably supported on its axle by a roller bearing assembly.
Claim 11
Dependent Claim
20 words
A skateboard as set forth in claim 2 in which said support member is made of a synthetic plastic material.
Claim 12
Dependent Claim
44 words
A skateboard as set forth in claim 2 in which said support member is made of a synthetic plastic material, and said elongate slots are provided in said projections and inclined in opposite directions at substantially the same angle relative to said longitudinal axis.
Claim 13
Dependent Claim
28 words
A skateboard as set forth in claim 1 in which said pair of projections are defined as an integral part of said suppot member as a single-piece construction.
References Cited (Backward Citations)
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Cited
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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) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |