Patent US3146637A successfully refreshed from Google Patents.
US3146637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control means for epicyclic power transmission mechanisms
Assignee: Auto Transmissions Ltd
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Filing: 1962-01-03
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Granted: 1964-09-01
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Expires: 1982-01-03
Abstract
No abstract record available.
Inventors
- 👤 Whateley Eric Albert
- 👤 Ashby Sydney Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:48
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0293; F16H2716/00; F16H2716/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
CONTROL MEANS FOR A VARIABLE SPEED EPICYCLIC POWER TRANSMISSION MECHANISM, COMPRISING THE COMBINATION OF TWO COAXIAL CLUTCH MEMBERS CONNECTED IN THE DRIVE SENSE TO ONE EPICYCLIC ELEMENT OF THE ASSOCIATED MECHANISM AND RESPECTIVELY PRESENTING TWO FACING CLUTCH SURFACES, SPRING MEANS ACTING ON SAID CLUTCH MEMBERS, AN ASSOCIATED CLUTCH MEMBER CONNECTED IN THE DRIVE SENSE TO A FURTHER EPICYCLIC ELEMENT PRESENTING TWO CLUTCH SURFACES AND ADAPTED TO BE GRIPPED BETWEEN SAID FACING CLUTCH SURFACES UNDER THE ACTION OF THE SPRING MEANS ACTING ON SAID TWO CLUTCH MEMBERS TO PROVIDE ONE DRIVE RATIO, AN ANNULAR BRAKE MEMBER WHICH IS SLIDABLY AND NON-ROTATABLY MOUNTED FOR BRAKING ENGAGEMENT WITH ONE OF SAID TWO CLUTCH MEMBERS TO PROVIDE AN ALTERNATIVE DRIVE RATIO, AND MEANS FOR IMPARTING AXIAL MOVEMENT TO SAID BRAKE MEMBER AND THE OTHER OF SAID TWO CLUTCH MEMBERS AT THE SAME TIME IN A MANNER WHICH RELIEVES SAID ASSOCIATED CLUTCH MEMBER FROM CLUTCHING ENGAGEMENT WITH SAID TWO CLUTCH MEMBERS AND ENGAGES THE ANNULAR BRAKE MEMBER WITH SAID ONE CLUTCH MEMBER.
Claim 2
Dependent Claim
167 words
CONTROL MEANS FOR A VARIABLE SPEED EPICYCLIC POWER TRANSMISSION MECHANISM, COMPRISING THE COMBINATION OF TWO COAXIAL CLUTCH MEMBERS CONNECTED IN THE DRIVE SENSE TO ONE EPICYCLIC ELEMENT OF THE ASSOCIATED MECHANISM AND RESPECTIVELY PRESENTING TWO FACING CLUTCH SURFACES, SPRING MEANS ACTING ON SAID CLUTCH MEMBERS, AN ASSOCIATED CLUTCH MEMBER CONNECTED IN THE DRIVE SENSE TO A FURTHER EPICYCLIC ELEMENT PRESENTING TWO CLUTCH SURFACES AND ADAPTED TO BE GRIPPED BETWEEN SAID FACING CLUTCH SURFACES UNDER THE ACTION OF THE SPRING MEANS ACTING ON SAID TWO CLUTCH MEMBERS TO PROVIDE ONE DRIVE RATIO, AN ANNULAR BRAKE MEMBER WHICH IS SLIDABLY AND NON-ROTATABLY MOUNTED FOR BRAKING ENGAGEMENT WITH ONE OF SAID TWO CLUTCH MEMBERS TO PROVIDE AN ALTERNATIVE DRIVE RATIO, AND MEANS FOR IMPARTING AXIAL MOVEMENT TO SAID BRAKE MEMBER AND THE OTHER OF SAID TWO CLUTCH MEMBERS AT THE SAME TIME IN A MANNER WHICH RELIEVES SAID ASSOCIATED CLUTCH MEMBER FROM CLUTCHING ENGAGEMENT WITH SAID TWO CLUTCH MEMBERS AND ENGAGES THE ANNULAR BRAKE MEMBER WITH SAID ONE CLUTCH MEMBER.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |