Patent US2786938A successfully refreshed from Google Patents.
US3590897A
Expired / Lapsed
US
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Spider wheel
Assignee: Individual
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Filing: 1969-10-21
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Granted: 1971-07-06
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Expires: 1989-10-21
Abstract
Abstract A soft resilient wheel having a multiple number of radial elements of springing material in order to cushion a vehicle and also properly support the vehicle upon various types of surfaces.
Inventors
- 👤 Edwin C Bragdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:52
CPC Classifications
B; B60; B60B; B60B9/00; B60B9/26; B60B19/00; B62; B62D; B62D57/00; B62D57/02; B62D57/022; B60B2900/00; B60B2900/10; B60B2900/112; B60B2900/131; B60B2900/30; B60B2900/313; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/24; B60Y2200/50; B60Y2200/51
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
72 words
A resilient spiderlike wheel comprising an axle having mounted thereon a central member and a pair of hub members, said hub members spaced from said central member, a plurality of radially spaced-apart leaf spring members attached at one end to and extending from said central member through said hub members, and ball members carried on free ends of said leaf spring members for engagement with the surface over which the wheel travels.
Claim 2
Dependent Claim
72 words
A resilient spiderlike wheel comprising an axle having mounted thereon a central member and a pair of hub members, said hub members spaced from said central member, a plurality of radially spaced-apart leaf spring members attached at one end to and extending from said central member through said hub members, and ball members carried on free ends of said leaf spring members for engagement with the surface over which the wheel travels.
Claim 3
Dependent Claim
32 words
The combination according to claim 1 wherein said balls are spaced radially and longitudinally apart along said axle in order to form a circular geometric pattern when wheel is not under load.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |