US3215235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid actuated servo clutch
Assignee: NUMERICAL CONTROL CORP
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Filing: 1962-06-11
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Granted: 1965-11-02
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Kamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:46
CPC Classifications
F; F16; F16D; F16D35/00; F16D35/02; F16D35/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A CLUTCH COMPRISING, IN COMBINATION: (A) MEANS INCLUDING A FIRST ROTOR ADAPTED TO BE ROTATED BY A SOURCE OF POWER, (A) SAID ROTOR FORMING A FIRST CHAMBER AND A SECOND CHAMBER, (B) AND HAVING A PASSAGEWAY INTER-CONNECTING SAID CHANBERS, (C) A DRIVING LIQUID IN SAID CHAMBERS AND PASSAGEWAY, (D) SAID MEANS FORMING A DUCT CONNECTED WITH THE FIRST CHAMBER AND FROMING A DUCT CONNECTED WITH THE SECOND CHAMBER, (E) SAID DUCTS BEING CONNECTED, RESPECTIVELY, TO INDEPENDENT SOURCES OF PRESSURES FOR CASUING DISPLACEMENT OF LIQUID BETWEEN SAID CHAMBERS UPON VARIATIONOF DIFFERENTIAL OF PRESSURES IN SAID DUCTS; (B) AND A SECOND ROTOR EXTENDING INTO THE FIRST MEMTIONED CHAMBER A SUFFICIENT DISTANCE TO B E SUBJECTED TO THE LIQUID IN SAID FIRST CHAMBER TO BE DRIVEN THEREBY.
Claim 2
Dependent Claim
124 words
A CLUTCH COMPRISING, IN COMBINATION: (A) MEANS INCLUDING A FIRST ROTOR ADAPTED TO BE ROTATED BY A SOURCE OF POWER, (A) SAID ROTOR FORMING A FIRST CHAMBER AND A SECOND CHAMBER, (B) AND HAVING A PASSAGEWAY INTER-CONNECTING SAID CHANBERS, (C) A DRIVING LIQUID IN SAID CHAMBERS AND PASSAGEWAY, (D) SAID MEANS FORMING A DUCT CONNECTED WITH THE FIRST CHAMBER AND FROMING A DUCT CONNECTED WITH THE SECOND CHAMBER, (E) SAID DUCTS BEING CONNECTED, RESPECTIVELY, TO INDEPENDENT SOURCES OF PRESSURES FOR CASUING DISPLACEMENT OF LIQUID BETWEEN SAID CHAMBERS UPON VARIATIONOF DIFFERENTIAL OF PRESSURES IN SAID DUCTS; (B) AND A SECOND ROTOR EXTENDING INTO THE FIRST MEMTIONED CHAMBER A SUFFICIENT DISTANCE TO B E SUBJECTED TO THE LIQUID IN SAID FIRST CHAMBER TO BE DRIVEN THEREBY.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |