US3237408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed hydrokinetic coupling
Assignee: FMC Corp
•
Filing: 1964-04-01
•
Granted: 1966-03-01
•
Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Philip R Bunnelle
- 👤 Wendell S Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:24
CPC Classifications
F; F16; F16D; F16D33/00; F16D33/06; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/479; Y10T137/8593; Y10T137/877; Y10T137/87788; Y10T137/87796
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A HYDRAULIC COUPLING COMPRISING A STATIONARY LIQUID HOUSING INCLUDING A SUMP, IMPELLER AND RUNNER COUPLING ELEMENTS, SHAFTS ROTATABLY MOUNTING SAID ELEMENTS IN SAID HOUSING, SAID COUPLING ELEMENTS COOPERATING TO FORM AN ACTIVE LIQUID CHAMBER, BLEED PORT MEANS FOR CENTRIFUGALLY DISCHARGING LIQUID FROM SAID ACTIVE LIQUID CHAMBER INTO SAID SUMP, MEANS ON ONE OF SAID COUPLING ELEMENTS AND WITHIN SAID HOUSING FORMING A CHARGING MOUTH SURROUNDING ONE OF SAID SHAFTS, A LIQUID RESERVOIR MOUNTED ON SAID HOUSING ABOVE SAID COUPLING ELEMENTS, SAID RESERVOIR HAVING AN UPPER, LIQUID RECEIVING OPENING, AND A LOWER GRAVITY FLOW DISCHARGE OPENING DISPOSED ABOVE SAID CHARGING MOUTH, FLOW CONTROL MEANS BETWEEN SAID RESERVOIR DISCHARGE OPENING AND SAID CHARGING MOUTH FOR DIVIDING THE FLOW OF CHARGING LIQUID FROM SAID RESERVOIR BETWEEN SAID CHARGING MOUTH AND SAID HOUSING SUMP, SAID HOUSING HAVING A SIDE WALL PORTION THAT EXTENDS GENERALLY UPWARDLY FROM AND TANGENTIALLY TO SAID COUPLING ELEMENTS AND A TOP WALL PORTION THAT EXTENDS FROM SIDE WALL PORTION OVER THE LIQUID RECEIVING OPENING IN SAID RESERVOIR, A GENERALLY RADIAL DISC-LIKE LIQUID SLINGER MOUNTED ON ONE OF SAID COUPLING ELEMENTS AND DIPPING INTO LIQUID IN SAID SUMP, LIQUID PASSAGEWAY MEANS IN SAID HOUSING EXTENDING ALONG
Claim 2
Dependent Claim
195 words
A HYDRAULIC COUPLING COMPRISING A STATIONARY LIQUID HOUSING INCLUDING A SUMP, IMPELLER AND RUNNER COUPLING ELEMENTS, SHAFTS ROTATABLY MOUNTING SAID ELEMENTS IN SAID HOUSING, SAID COUPLING ELEMENTS COOPERATING TO FORM AN ACTIVE LIQUID CHAMBER, BLEED PORT MEANS FOR CENTRIFUGALLY DISCHARGING LIQUID FROM SAID ACTIVE LIQUID CHAMBER INTO SAID SUMP, MEANS ON ONE OF SAID COUPLING ELEMENTS AND WITHIN SAID HOUSING FORMING A CHARGING MOUTH SURROUNDING ONE OF SAID SHAFTS, A LIQUID RESERVOIR MOUNTED ON SAID HOUSING ABOVE SAID COUPLING ELEMENTS, SAID RESERVOIR HAVING AN UPPER, LIQUID RECEIVING OPENING, AND A LOWER GRAVITY FLOW DISCHARGE OPENING DISPOSED ABOVE SAID CHARGING MOUTH, FLOW CONTROL MEANS BETWEEN SAID RESERVOIR DISCHARGE OPENING AND SAID CHARGING MOUTH FOR DIVIDING THE FLOW OF CHARGING LIQUID FROM SAID RESERVOIR BETWEEN SAID CHARGING MOUTH AND SAID HOUSING SUMP, SAID HOUSING HAVING A SIDE WALL PORTION THAT EXTENDS GENERALLY UPWARDLY FROM AND TANGENTIALLY TO SAID COUPLING ELEMENTS AND A TOP WALL PORTION THAT EXTENDS FROM SIDE WALL PORTION OVER THE LIQUID RECEIVING OPENING IN SAID RESERVOIR, A GENERALLY RADIAL DISC-LIKE LIQUID SLINGER MOUNTED ON ONE OF SAID COUPLING ELEMENTS AND DIPPING INTO LIQUID IN SAID SUMP, LIQUID PASSAGEWAY MEANS IN SAID HOUSING EXTENDING ALONG
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |