US3143377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel disks and disk wheel assemblies
Assignee: Bridgestone Firestone Inc
•
Filing: 1960-09-26
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Granted: 1964-08-04
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Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Walter W Bulgrin
- 👤 Mackusick Meredith Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:02
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/26; B21D53/265; B60; B60B; B60B3/00; B60B3/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49492; Y10T29/49496; Y10T29/49504
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METAL SPUN WHEEL DISK HAVING A CURVED BOWL SHAPE WITH A FLAT HUB PORTION AND A CYLINDRICAL RELATIVELY THIN RIM FLANGE CONNECTED BY AN OUTWARDLY CONVEX PARABOLICALLY CURVED INTERMEDIATE PORTION AND THE THICKNESS OF THE CURVED INTERMEDIATE PORTION TAPERING GRADUALLY FROM THE HUB PORTION OUTWARDLY TO THE PERIPHERAL CYLINDRICAL RIM FLANGE, THE THICKNESS OF SAID DISK TAPERING IN PROPORTION TO THE SINE OF THE ANGLE FORMED BY THE TANGENT AT ANY POINT ON SAID PARABOLICALLY CURVED INTERMEDIATE PORTION WITH RESPECT TO THE AXIS OF SAID CURVED BOWL SHAPE.
Claim 2
Dependent Claim
89 words
A METAL SPUN WHEEL DISK HAVING A CURVED BOWL SHAPE WITH A FLAT HUB PORTION AND A CYLINDRICAL RELATIVELY THIN RIM FLANGE CONNECTED BY AN OUTWARDLY CONVEX PARABOLICALLY CURVED INTERMEDIATE PORTION AND THE THICKNESS OF THE CURVED INTERMEDIATE PORTION TAPERING GRADUALLY FROM THE HUB PORTION OUTWARDLY TO THE PERIPHERAL CYLINDRICAL RIM FLANGE, THE THICKNESS OF SAID DISK TAPERING IN PROPORTION TO THE SINE OF THE ANGLE FORMED BY THE TANGENT AT ANY POINT ON SAID PARABOLICALLY CURVED INTERMEDIATE PORTION WITH RESPECT TO THE AXIS OF SAID CURVED BOWL SHAPE.
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |