US3213617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic transmission anti-stall valve
Assignee: Borg Warner Corp
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Filing: 1964-02-24
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Granted: 1965-10-26
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Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Irving H Hallberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/478; Y; Y10; Y10S; Y10S60/00; Y10S60/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A HYDROSTATIC TRANSMISSION ADAPTED TO BE CONNECTED TO A DRIVING ENGINE INCLUDING A FLUID PUMP HAVING A VARIABLE ANGLE SWASH PLATE; A CONTROL SYSTEM COMPRISING A FLUID PRESSURE OPERATED MEANS CONNECTED TO SAID SWASH PLATE; MANUAL MEANS CONNECTED TO SAID FLUID PRESSURE OPERATED MEANS AND MOVABLE TO ACTUATE SAID FLUID PRESSURE OPERATED MEANS AND THEREGY VARY THE ANGLE OF SAID SWASH PLATE TO VARY THE TRANSMISSION RATIO; A VALVE CONNECTED TO SAID FLUID PRESSURE OPERATED MEANS AND TO SAID MANUAL MEANS, SAID VALVE BEING RESPONSIVE TO THE FLUID PRESSURE DEVELOPED WITHIN THE TRANSMISSION AND THE ANGLE OF THE SWASH PLATE TO PREVENT ENGINE OVERLOAD THROUGH ACTUATION OF SAID FLUID PRESSURE OPERATED MEANS
Claim 2
Dependent Claim
113 words
IN A HYDROSTATIC TRANSMISSION ADAPTED TO BE CONNECTED TO A DRIVING ENGINE INCLUDING A FLUID PUMP HAVING A VARIABLE ANGLE SWASH PLATE; A CONTROL SYSTEM COMPRISING A FLUID PRESSURE OPERATED MEANS CONNECTED TO SAID SWASH PLATE; MANUAL MEANS CONNECTED TO SAID FLUID PRESSURE OPERATED MEANS AND MOVABLE TO ACTUATE SAID FLUID PRESSURE OPERATED MEANS AND THEREGY VARY THE ANGLE OF SAID SWASH PLATE TO VARY THE TRANSMISSION RATIO; A VALVE CONNECTED TO SAID FLUID PRESSURE OPERATED MEANS AND TO SAID MANUAL MEANS, SAID VALVE BEING RESPONSIVE TO THE FLUID PRESSURE DEVELOPED WITHIN THE TRANSMISSION AND THE ANGLE OF THE SWASH PLATE TO PREVENT ENGINE OVERLOAD THROUGH ACTUATION OF SAID FLUID PRESSURE OPERATED MEANS
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |