Patent DE303587C successfully refreshed from Google Patents.
Patent US3303723A successfully refreshed from Google Patents.
US3303723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steering gear for tracked vehicles
Assignee: Individual
•
Filing: 1963-11-29
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Granted: 1967-02-14
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Ruf Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:34
CPC Classifications
B; B62; B62D; B62D11/00; B62D11/02; B62D11/06; B62D11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A STEERING GEAR FOR TRACKED VEHICLES AND TANKS FOUR COAXIALLY ARRANGED GEAR WHEELS, TWO OUTPUT SHAFTS, EACH CONNECTED WITH ONE OF SAID GEAR WHEELS, ONE INPUT SHAFT, TRANSMISSION MEANS, SO LOCATED BETWEEN THE INPUT SHAFT AND THE TWO REMAINING OF SAID FOUR GEAR WHEELS THAT THESE LAST MENTIONED TWO GEAR WHEELS ARE DRIVEN BY THE INPUT SHAFT IN THE OPPOSITE SENSE OF ROTATION, TWO SHIFT SLEEVES DISPLACEABLE IN THE AXIAL DIRECTION OF SAID GEAR WHEELS INTO SEVERAL ENGAGING POSITIONS, IN WHICH THEY ALWAYS POSITIVELY CONNECTED TWO OF SAID GEAR WHEELS, AND AN ACTUATING DEVICE BY MEANS OF WHICH THESE TWO SHIFT SLEEVES MAY BE MOVED INTO THEIR DIFFERENT ENGAGING POSITIONS, AND CONTROLLED BY A PRESSURE MEDIUM.
Claim 2
Dependent Claim
117 words
IN A STEERING GEAR FOR TRACKED VEHICLES AND TANKS FOUR COAXIALLY ARRANGED GEAR WHEELS, TWO OUTPUT SHAFTS, EACH CONNECTED WITH ONE OF SAID GEAR WHEELS, ONE INPUT SHAFT, TRANSMISSION MEANS, SO LOCATED BETWEEN THE INPUT SHAFT AND THE TWO REMAINING OF SAID FOUR GEAR WHEELS THAT THESE LAST MENTIONED TWO GEAR WHEELS ARE DRIVEN BY THE INPUT SHAFT IN THE OPPOSITE SENSE OF ROTATION, TWO SHIFT SLEEVES DISPLACEABLE IN THE AXIAL DIRECTION OF SAID GEAR WHEELS INTO SEVERAL ENGAGING POSITIONS, IN WHICH THEY ALWAYS POSITIVELY CONNECTED TWO OF SAID GEAR WHEELS, AND AN ACTUATING DEVICE BY MEANS OF WHICH THESE TWO SHIFT SLEEVES MAY BE MOVED INTO THEIR DIFFERENT ENGAGING POSITIONS, AND CONTROLLED BY A PRESSURE MEDIUM.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |