US3200755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Bendix Corp
•
Filing: 1962-09-10
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Granted: 1965-08-17
•
Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Mileti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:48
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2261; F04D29/2277; F04D9/00; F04D9/001; F04D9/002; F04D9/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A CENTRIFUGAL PUMP COMPRISING: A HOUSING HAVING AN INTERNAL CAVITY FED BY AN AXIAL INLET AND A PERIPHERAL OUTLET; A FLUID COLLECTING POCKET IN THE INLET ADJACENT THE CAVITY; A FIRST PUMP IMPELLER ROTATABLY MOUNTED IN SAID HOUSING CAVITY RECEIVING FLUID FROM SAID INLET AND DISCHARGING SAME THROUGH SAID PERIPHERAL OUTLET; A SECOND PUMP IMPELLER ADAPTED TO BE DRIVEN CONCURRENTLY WITH SAID FIRST PUMP IMPELLER AND FACING IN AN OPPOSITE DIRECTION TO THAT OF SAID FIRST IMPELLER IN SAID CAVITY; A RESILIENT MEANS INTERPOSED WITH SAID FIRST AND SECOND IMPELLERS TO PROJECT SAID SECOND IMPELLER OUTWARDLY OF SAID FIRST IMPELLER WHEREUPON RUNNING CONTACT IS MAINTAINED BETWEEN SAID SECOND IMPELLER AND A HOUSING CAVITY WALL; AND AN INTERNAL PASSAGE CONNECTING SAID FLUID COLLECTING POCKET TO AN OPENING IN THE WALL IN RUBBING CONTACT WITH SAID SECOND IMPELLER.
Claim 2
Dependent Claim
136 words
A CENTRIFUGAL PUMP COMPRISING: A HOUSING HAVING AN INTERNAL CAVITY FED BY AN AXIAL INLET AND A PERIPHERAL OUTLET; A FLUID COLLECTING POCKET IN THE INLET ADJACENT THE CAVITY; A FIRST PUMP IMPELLER ROTATABLY MOUNTED IN SAID HOUSING CAVITY RECEIVING FLUID FROM SAID INLET AND DISCHARGING SAME THROUGH SAID PERIPHERAL OUTLET; A SECOND PUMP IMPELLER ADAPTED TO BE DRIVEN CONCURRENTLY WITH SAID FIRST PUMP IMPELLER AND FACING IN AN OPPOSITE DIRECTION TO THAT OF SAID FIRST IMPELLER IN SAID CAVITY; A RESILIENT MEANS INTERPOSED WITH SAID FIRST AND SECOND IMPELLERS TO PROJECT SAID SECOND IMPELLER OUTWARDLY OF SAID FIRST IMPELLER WHEREUPON RUNNING CONTACT IS MAINTAINED BETWEEN SAID SECOND IMPELLER AND A HOUSING CAVITY WALL; AND AN INTERNAL PASSAGE CONNECTING SAID FLUID COLLECTING POCKET TO AN OPENING IN THE WALL IN RUBBING CONTACT WITH SAID SECOND IMPELLER.
References Cited (Backward Citations)
US2166530A
Cited
US2358744A
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US2500227A
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US3045602A
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US2875696A
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US2927536A
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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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |