US2755138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel construction
Assignee: Bridgestone Firestone Inc
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Filing: 1954-01-28
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Granted: 1956-07-17
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Expires: 1974-01-28
Abstract
No abstract record available.
Inventors
- 👤 Winfield S Brink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:06
CPC Classifications
B; B60; B60B; B60B23/00; B60B23/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A WHEEL CONSTRUCTION ADAPTED TO PROVIDE A VARIABLE WHEEL SPACING FOR AN AGRICULTURAL TRACTOR AND THE LIKE, A DISC PORTION AND A RIM PORTION MOUNTED THEREON, SAID DISC PORTION COMPRISING A HUB ADAPTED TO REMOVABLY MOUNT SAID WHEEL ON THE AXLE OF SAID TRACTOR AND A STAMPED METAL BODY SECURED TO SAID HUB AND TERMINATING IN AN OUTER EDGE, SAID STAMPED BODY BEING SPLIT IN A RADIAL DIRECTION AND SAID SPLIT EDGE BEING UNIFORMLY DISPLACED AXIALLY AROUND ITS PERIPHERY TO DEFINE A HELICAL PATH, AND MEANS SECURED TO SAID RIM AND ADAPTED TO COOPERATE WITH SAID DISC EDGE WHEREBY RELATIVE ROTATION OF SAID DISC AND RIM PORTIONS RESULTS IN AXIAL MOVEMENT OF
Claim 2
Dependent Claim
113 words
IN A WHEEL CONSTRUCTION ADAPTED TO PROVIDE A VARIABLE WHEEL SPACING FOR AN AGRICULTURAL TRACTOR AND THE LIKE, A DISC PORTION AND A RIM PORTION MOUNTED THEREON, SAID DISC PORTION COMPRISING A HUB ADAPTED TO REMOVABLY MOUNT SAID WHEEL ON THE AXLE OF SAID TRACTOR AND A STAMPED METAL BODY SECURED TO SAID HUB AND TERMINATING IN AN OUTER EDGE, SAID STAMPED BODY BEING SPLIT IN A RADIAL DIRECTION AND SAID SPLIT EDGE BEING UNIFORMLY DISPLACED AXIALLY AROUND ITS PERIPHERY TO DEFINE A HELICAL PATH, AND MEANS SECURED TO SAID RIM AND ADAPTED TO COOPERATE WITH SAID DISC EDGE WHEREBY RELATIVE ROTATION OF SAID DISC AND RIM PORTIONS RESULTS IN AXIAL MOVEMENT OF
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) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |