US4919490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle wheel
Assignee: Hed Cycling Products Inc
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Filing: 1988-10-12
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Granted: 1990-04-24
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Expires: 2008-10-12
Abstract
Abstract A wheel formed of a rim joined to a hub by a multi-spoke foam structure that is coated with a fiber reinforced resin material is defined by particular relationships between the spokes and the radiused sections joining the spokes to the hub and the rim.
Inventors
- 👤 Mark W. Hopkins
- 👤 Frank S. Principe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:44
CPC Classifications
B; B60; B60B; B60B3/00; B60B5/00; B60B5/02; B60B1/00; B60B1/003
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
60 words
A wheel comprising: a circular member, a hub concentric with said circular member, and a plurality of elongated spokes connected between said hub and said circular member, each of said spokes having a leading and a trailing edge, an aerodynamic profile, and an aspect ratio greater than about 3.0 said aspect ratio being constant throughout the length of the spoke.
Claim 2
Dependent Claim
60 words
A wheel comprising: a circular member, a hub concentric with said circular member, and a plurality of elongated spokes connected between said hub and said circular member, each of said spokes having a leading and a trailing edge, an aerodynamic profile, and an aspect ratio greater than about 3.0 said aspect ratio being constant throughout the length of the spoke.
Claim 3
Dependent Claim
27 words
The wheel as defined in claim 1, said circular member having an aerodynamic shaped edge directed toward said hub and an aspect ratio greater than about 2.6.
Claim 4
Dependent Claim
17 words
The wheel as defined in claim 1 wherein said aspect ratio of the spoke is about 3.8.
Claim 5
Dependent Claim
18 words
The wheel as defined in claim 2 wherein the aspect ratio of the circular member is about 2.9.
Claim 6
Dependent Claim
33 words
The wheel as defined in claim 2 wherein the spokes are joined to the circular member by radiused sections having a radius that is about equal to one-half the width of the spoke.
Claim 7
Dependent Claim
28 words
The wheel as defined in claims 1, 2, 3, 4 or 5 wherein said wheel is formed of a foam core coated with a fiber reinforced resin material.
Claim 8
Dependent Claim
19 words
The wheel as defined in claim 6 wherein said resin is a thermosetting resin, said fiber being carbon fiber.
Claim 9
Dependent Claim
31 words
The wheel as defined in claim 2 wherein the spoke is joined to the hub by radiused sections having a radius that is about equal to the width of the spoke.
Claim 10
Dependent Claim
17 words
The wheel as defined in claims 1, 2, 3, 4 or 5 wherein there are three spokes.
Claim 11
Dependent Claim
12 words
The wheel as defined in claim 6 wherein said fiber is glass.
Claim 12
Dependent Claim
18 words
The wheel as defined in claim 6 wherein said fiber is a combination of carbon and glass fibers.
Claim 13
Dependent Claim
14 words
The wheel as defined in claim 6 wherein said fiber is an aramid fiber.
Claim 14
Dependent Claim
23 words
The wheel as defined in claim 6 wherein said fiber is a blend of carbon, glass, polyethylene, extended chain polyethylene and aramid fibers.
Claim 15
Dependent Claim
22 words
The wheel as defined in claim 1 wherein the surface of said wheel has a surface finish less than about 16 rms.
Claim 16
Dependent Claim
12 words
The wheel as defined in claim 6 wherein said fiber is polyethylene.
Claim 17
Dependent Claim
14 words
The wheel as defined in claim 6 wherein the fiber is extended chain polyethylene.
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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) | 1993-04-23 | 1993-10-23 | 1994-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-23 | 1997-10-23 | 1998-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-23 | 2001-10-23 | 2002-04-24 | $7700.00 | Window Closed / Lapsed |