US3213983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid actuated transmission device
Assignee: Borg Warner Corp
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Filing: 1963-08-26
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Granted: 1965-10-26
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Expires: 1983-08-26
Abstract
No abstract record available.
Inventors
- 👤 Richard L Smirl
- 👤 Miczyslaw J Waclawek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:06
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/14; F16H45/00; F16H45/02; F16H2045/0273; F16H2045/0278
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
A WET-TYPE HYDRAULIC CLUTCH COMPRISING: ROTATABLE INPUT AND OUTPUT MEMBERS, A HOUSING DRIVINGLY CONNECTED TO SAID INPUT MEMBER AND HAVING AN ELEMENT DIVIDING SAID HOUSING INTO AT LEAST TWO DHAMBERS, MEMBERS DISPOSED IN AT LEAST ONE OF SAID CHAMBERS CAPABLE OF ROTATING AT DIFFERENT SPEEDS THAN SAID HOUSING, ACTUATING MEANS ADAPTED TO PROVIDE ENGAGEMENT AND DISENGAGEMENT OF SAID CLUTCH PLATE WITH SAID INPUT MEMBER AND BEING RESPONSIVE TO FLUID PRESSURE IN BOTH OF SAID CHAMBERS, MEANS DISPOSED WITHIN SAID HOUSING AND ADAPTED TO EQUALIZE THE TOTAL FLUID FORCES ACTINMG AGAINST SAID ACTUATING MEANS IRRESPECTIVE OF THE ROTATIVE SPEEDS OR SAID HOUSING OR SAID MEMBERS DISPOSED IN SAID CHAMBERS.
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 |