Patent US3245220A successfully refreshed from Google Patents.
US3245220A
Expired / Lapsed
US
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Hydraulic turbo couplings
Assignee: Fluidrive Engineering Co Ltd
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Filing: 1964-10-09
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Granted: 1966-04-12
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Expires: 1984-10-09
Abstract
No abstract record available.
Inventors
- 👤 Bilton John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:33
CPC Classifications
F; F16; F16D; F16D33/00; F16D33/06; F16D33/08; F16D33/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A SCOOP-TRIMMED HYDRAULIC TURBO-COUPLING COMPRISING: IMPELLER AND RUNNER ELEMENTS, SAID IMPELLER AND SAID RUNNER ELEMENTS TOGETHER DEFINING A TOROIDAL WORKING CIRCUIT FOR LIQUID; AN IMPELLER CASING CONNECTED TO SAID IMPELLER FOR ROTATION THEREWITH SAID CASING EXTENDING AROUND SAID RUNNER; A SCOOP CHAMBER CONNECTED FOR ROTATION WITH SAID IMPELLER, THE RADIALLY OUTER PARTION OF SAID WORKING CIRCUIT BEING IN FREE COMMUNICATION WITH SAID SCOOP CHAMBER; AN ADJUSTABLE SCOOP TUBE EXTENDING INTO SAID SCOOP CHAMBER AND POSITIONED TO TRIM OFF LIQUID FROM SAID SCOOP CHAMBER;
Claim 2
Dependent Claim
83 words
A SCOOP-TRIMMED HYDRAULIC TURBO-COUPLING COMPRISING: IMPELLER AND RUNNER ELEMENTS, SAID IMPELLER AND SAID RUNNER ELEMENTS TOGETHER DEFINING A TOROIDAL WORKING CIRCUIT FOR LIQUID; AN IMPELLER CASING CONNECTED TO SAID IMPELLER FOR ROTATION THEREWITH SAID CASING EXTENDING AROUND SAID RUNNER; A SCOOP CHAMBER CONNECTED FOR ROTATION WITH SAID IMPELLER, THE RADIALLY OUTER PARTION OF SAID WORKING CIRCUIT BEING IN FREE COMMUNICATION WITH SAID SCOOP CHAMBER; AN ADJUSTABLE SCOOP TUBE EXTENDING INTO SAID SCOOP CHAMBER AND POSITIONED TO TRIM OFF LIQUID FROM SAID SCOOP CHAMBER;
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |