US3253475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear with hydraulic speed selection
Assignee: Individual
•
Filing: 1963-09-11
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Granted: 1966-05-31
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Expires: 1983-09-11
Abstract
No abstract record available.
Inventors
- 👤 Papst Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/089; B; B60; B60W; B60W30/00; B60W30/18; B60W30/1819; B60K; B60K2702/00; B60K2702/08; B60K2702/10; B60K2702/14; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433; Y10T74/20; Y10T74/20207; Y10T74/20238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A GEAR TRANSMISSION, IN COMBINATION, A SHAFT; A PAIR OF COUPLING MEMBERS SECURED TO SAID SHAFT AXIALLY SPACED FROM EACH OTHER; AT LEAST ONE GEAR ELEMENT MOUNTED ON SAID SHAFT FOR FREE ROTATION AND LOCATED BETWEEN SAID COUPLING MEMBERS AT LEAST ONE PISTON ELEMENT MOUNTED IN SAID GEAR ELEMENT AND FORMING A CHAMBER WITH THE SAME; MEANS ON SAID GEAR ELEMENT AND PISTON ELEMENT CONNECTING THE SAME RELATIVE AXIAL MOVEMENT AND FOR TURNING MOVEMENT WITH EACH OTHER; AND MEANS FOR SUPPLY ING A PRESSURE FLUID INTO SAID CHAMBER WHEREBY AT LEAST ONE OF SAID ELEMENTS IS MOVED IN AXIAL DIRECTION TO ENGAGE THE ADJACENT COUPLING MEMBERS SO THAT SAID GEAR ELEMENT IS COUPLED WITH SAID SHAFT.
Claim 2
Dependent Claim
117 words
IN A GEAR TRANSMISSION, IN COMBINATION, A SHAFT; A PAIR OF COUPLING MEMBERS SECURED TO SAID SHAFT AXIALLY SPACED FROM EACH OTHER; AT LEAST ONE GEAR ELEMENT MOUNTED ON SAID SHAFT FOR FREE ROTATION AND LOCATED BETWEEN SAID COUPLING MEMBERS AT LEAST ONE PISTON ELEMENT MOUNTED IN SAID GEAR ELEMENT AND FORMING A CHAMBER WITH THE SAME; MEANS ON SAID GEAR ELEMENT AND PISTON ELEMENT CONNECTING THE SAME RELATIVE AXIAL MOVEMENT AND FOR TURNING MOVEMENT WITH EACH OTHER; AND MEANS FOR SUPPLY ING A PRESSURE FLUID INTO SAID CHAMBER WHEREBY AT LEAST ONE OF SAID ELEMENTS IS MOVED IN AXIAL DIRECTION TO ENGAGE THE ADJACENT COUPLING MEMBERS SO THAT SAID GEAR ELEMENT IS COUPLED WITH SAID SHAFT.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |