US3138971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission
Assignee: —
•
Filing: —
•
Granted: 1964-06-30
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:23
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/02; F16H47/04; F16H2306/00; Y; Y10; Y10S; Y10S74/00; Y10S74/01
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
183 words
IN A TRANSMISSION, DRIVE MEANS INCLUDING AN INPUT, AN OUTPUT AND DRIVE ESTABLISHING MEANS CONNECTING THE INPUT AND OUTPUT AND HAVING FLUID OPERATED MEANS OPERATIVE TO ESTABLISH A DRIVE, A SOURCE OF FLUID UNDER PRESSURE, SHIFT VALVE MEANS CONNECTING SAID SOURCE AND FLUID OPERATED MEANS HAVING BIASING MEANS URGING SAID SHIFT VALVE MEANS TOWARD A FIRST POSITION TO CONTROL THE SUPPLY OF FLUID FROM SAID SOURCE TO DISENGAGE SAID DRIVE, GOVERNOR MEANS OPERATIVELY CONNECTED TO SAID DRIVE MEANS PROVIDING A FLUID PRESSURE PROPORTIONAL TO THE SPEED OF AN ELEMENT OF SAID DRIVE MEANS AND CONNECTED TO SAID SHIFT VALVE MEANS URGING SAID SHIFT VALVE MEANS TOWARD A SECOND POSITION TO CONTROL THE CONNECTION BETWEEN SAID SOURCE AND FLUID OPERATED MEANS TO ESTABLISH SAID DRIVE, MEANS OPERATIVELY CONNECTED TO SAID FLUID OPERATED MEANS RESPONSIVE TO THE ENGAGEMENT OF SAID DRIVE MEANS AND CONNECTED TO SAID GOVERNOR MEANS OPERATIVE TO TEMPORARILY INCREASE THE FORCE OF SAID GOVERNOR MEANS OPERATING ON SAID SHIFT VALVE MEANS TO INSURE HOLDING SAID SHIFT VALVE MEANS IN SAID SECOND POSITION TO INSURE THE COMPLETION OF THE ESTABLISHMENT OF SAID DRIVE.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |