US3250069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid take-off from turbine pump for cooling systems
Assignee: Berkeley Pump Co
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Filing: 1963-11-04
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Granted: 1966-05-10
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Rhoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:49
CPC Classifications
B; B63; B63J; B63J2/00; B63J2/02; B63J2/06; F; F01; F01P; F01P5/00; F01P5/10; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/426; F04D29/70; F04D29/708; Y; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A WATER CRAFT AND PROPULSION UNIT COMPRISING: (A) A WATER-COOLED ENGINE MOUNTED TO SAID CRAFT; (B) A TURBINE PUMP MOUNTED TO SAID CRAFT, SAID TURBINE PUMP COMPRISING: (1) AN IMPELLER BOWL HAVING AN INNER CIRCULAR SEAL LOCATED AT THE INTAKE END THEREOF; (2) AN IMPELLER DISPOSED WITHIN SAID BOWL, SAID IMPELLER HAVING RADIAL VANES EXTENDING INTO PROXIMATE RELATION TO SAID INNER SEAL AND A SHROUD ON THE OUTER RADIAL ENS OF SAID VANES, SAID SHROUD BEING SUPPORTED FOR ROTATION BY SAID INNER SEAL AND FLARING RADIALLY OUTWARDLY FROM THE LEADING EDGE OF SAID VANES IN PROXIMATE RELATION TO SAID INNER SEAL, TO THE TRAILING EDGE OF SAID VANES; (3) SAID IMPELLER BOWL DEFINING A FLUID PASSAGEWAY EXTENDING THERETHROUGH, SAID PASSAGEWAY OPENING INTO SAID BOWL AT A POINT ON THE DOWNSTREAM SIDE OF SAID INNER SEAL IN PROXIMATE RELATION TO SAID INNER SEAL AND SAID SHROUD, RADIALLY INWARDLY FROM SAID TRAILING EDGES; AND (C) MEANS COMMUNICATION FROM SAID PASSAGEWAY TO SAID WATER-COOLED ENGINE.
Claim 2
Dependent Claim
162 words
A WATER CRAFT AND PROPULSION UNIT COMPRISING: (A) A WATER-COOLED ENGINE MOUNTED TO SAID CRAFT; (B) A TURBINE PUMP MOUNTED TO SAID CRAFT, SAID TURBINE PUMP COMPRISING: (1) AN IMPELLER BOWL HAVING AN INNER CIRCULAR SEAL LOCATED AT THE INTAKE END THEREOF; (2) AN IMPELLER DISPOSED WITHIN SAID BOWL, SAID IMPELLER HAVING RADIAL VANES EXTENDING INTO PROXIMATE RELATION TO SAID INNER SEAL AND A SHROUD ON THE OUTER RADIAL ENS OF SAID VANES, SAID SHROUD BEING SUPPORTED FOR ROTATION BY SAID INNER SEAL AND FLARING RADIALLY OUTWARDLY FROM THE LEADING EDGE OF SAID VANES IN PROXIMATE RELATION TO SAID INNER SEAL, TO THE TRAILING EDGE OF SAID VANES; (3) SAID IMPELLER BOWL DEFINING A FLUID PASSAGEWAY EXTENDING THERETHROUGH, SAID PASSAGEWAY OPENING INTO SAID BOWL AT A POINT ON THE DOWNSTREAM SIDE OF SAID INNER SEAL IN PROXIMATE RELATION TO SAID INNER SEAL AND SAID SHROUD, RADIALLY INWARDLY FROM SAID TRAILING EDGES; AND (C) MEANS COMMUNICATION FROM SAID PASSAGEWAY TO SAID WATER-COOLED ENGINE.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |