US3228503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic clutches or like transmissions and in their control elements
Assignee: Valeo SE
•
Filing: 1962-04-05
•
Granted: 1966-01-11
•
Expires: 1982-04-05
Abstract
No abstract record available.
Inventors
- 👤 Maurice Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:25
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/02; F16D25/00; F16D25/12; F16D25/14; F16D48/04; F16H; F16H45/00; F16H61/00; F16H61/14; F16H61/143; F16D2048/0209; F16D2500/00; F16D2500/30; F16D2500/302; F16D2500/3024; F16D2500/304; F16D2500/30406; F16D2500/70; F16D2500/704; F16D2500/70422; F16D2500/70432; F16D2500/70436; F16D2500/70438; F16D2500/70442; F16D2500/70444; F16H2045/005; F16H45/02; F16H2045/0273; F16H2045/0278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SYNCHRONIZING CONTROL FOR THE DRIVING MEMBER AND THE DRIVE MEMBER OF A TRASMISSION COMPRISING A CLUTCH HAVING A HYDRAULIC CHAMBER, COMPRISING: A SOURCE OF HYRDAULIC PRESSURE, A FIRST HYDRAULIC MEANS FOR COUPLING SAID CLUTCH CHAMBER TO SAID SOURCE, A DISTRIBUTOR IN SAID FIRST COUPLING MEANS FOR EFFECTING SELECTIVELY THE ENGAGEMENT AND DISENGAGEMENT OF SAID CLUTCH, A DEVICE HAVING A HYDRAULIC CYLINDER FOR PRODUCING A MODIFICATION OF THE SPEED OF ROTATION OF ONE OF THE MEMBERS OF SAID CLUTCH, A SECOND HYDRAULIC MEANS FOR COUPLING SAID SPEEDMODIFYING DEVICE TO SAID SOURCE, AND A GATE IN SAID SECOND COUPLING MEANS, REPSONSIVE TO THE SENSE OF ANY SLIP BETWEEN THE TWO MEMBERS OF SAID CLUTCH.
Claim 2
Dependent Claim
113 words
A SYNCHRONIZING CONTROL FOR THE DRIVING MEMBER AND THE DRIVE MEMBER OF A TRASMISSION COMPRISING A CLUTCH HAVING A HYDRAULIC CHAMBER, COMPRISING: A SOURCE OF HYRDAULIC PRESSURE, A FIRST HYDRAULIC MEANS FOR COUPLING SAID CLUTCH CHAMBER TO SAID SOURCE, A DISTRIBUTOR IN SAID FIRST COUPLING MEANS FOR EFFECTING SELECTIVELY THE ENGAGEMENT AND DISENGAGEMENT OF SAID CLUTCH, A DEVICE HAVING A HYDRAULIC CYLINDER FOR PRODUCING A MODIFICATION OF THE SPEED OF ROTATION OF ONE OF THE MEMBERS OF SAID CLUTCH, A SECOND HYDRAULIC MEANS FOR COUPLING SAID SPEEDMODIFYING DEVICE TO SAID SOURCE, AND A GATE IN SAID SECOND COUPLING MEANS, REPSONSIVE TO THE SENSE OF ANY SLIP BETWEEN THE TWO MEMBERS OF SAID CLUTCH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |