Patent US3082694A successfully refreshed from Google Patents.
US3082694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-priming centrifugal pump
Assignee: Ingersoll Rand Co
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Filing: 1960-05-24
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Granted: 1963-03-26
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Expires: 1980-05-24
Abstract
No abstract record available.
Inventors
- 👤 Brkich Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:11
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04; F04D9/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A SELF-PRIMING CENTRIFUGAL PUMP ASSEMBLY COMPRISING A CASING, A MAIN ROTOR MOUNTED IN SAID CASING FOR ROTATION, ROTARY POWER MEANS CONNECTED TO SAID MAIN ROTOR FOR ROTATING THE LATTER, SAID CASING HAVING AN INLET TO RECEIVE FLUID TO BE PUMPED AND PASS THE SAME TO SAID MAIN ROTOR AND A DISCHARGE PASSAGEWAY FOR RECEIVING PUMPED FLUID FROM SAID MAIN ROTOR, A DISCHARGE CONDUIT COMMUNICATING WITH SAID DISCHARGE PASSAGEWAY TO RECEIVE PUMPED FLUID FROM THE LATTER, A CHECK VALVE DISPOSED IN SAID DISCHARGE CONDUIT TO CONTROL FLOW OF FLUID FROM SAID DISCHARGE PASSAGEWAY THROUGH SAID DISCHARGE CONDUIT, AND A PRIMING PUMP IN SAID CASING ADAPTED TO HANDLE GAS AND LIQUID, SAID PRIMING PUMP COMPRISING A CYLINDRICAL CHAMBER FORMED IN SAID CASING, A RADIALLY BLADED ROTARY IMPELLER ECCENTRICALLY MOUNTED IN SAID CYLINDRICAL CHAMBER WITH ITS AXIS OF ROTATION SUBSTANTIALLY HORIZONTAL, SAID IMPELLER BEING CONNECTED TO SAID ROTARY POWER MEANS FOR ROTATION, AN INLET MEANS COMMUNICATING WITH SAID CYLINDRICAL CHAMBER AND SAID CASING
Claim 2
Dependent Claim
160 words
A SELF-PRIMING CENTRIFUGAL PUMP ASSEMBLY COMPRISING A CASING, A MAIN ROTOR MOUNTED IN SAID CASING FOR ROTATION, ROTARY POWER MEANS CONNECTED TO SAID MAIN ROTOR FOR ROTATING THE LATTER, SAID CASING HAVING AN INLET TO RECEIVE FLUID TO BE PUMPED AND PASS THE SAME TO SAID MAIN ROTOR AND A DISCHARGE PASSAGEWAY FOR RECEIVING PUMPED FLUID FROM SAID MAIN ROTOR, A DISCHARGE CONDUIT COMMUNICATING WITH SAID DISCHARGE PASSAGEWAY TO RECEIVE PUMPED FLUID FROM THE LATTER, A CHECK VALVE DISPOSED IN SAID DISCHARGE CONDUIT TO CONTROL FLOW OF FLUID FROM SAID DISCHARGE PASSAGEWAY THROUGH SAID DISCHARGE CONDUIT, AND A PRIMING PUMP IN SAID CASING ADAPTED TO HANDLE GAS AND LIQUID, SAID PRIMING PUMP COMPRISING A CYLINDRICAL CHAMBER FORMED IN SAID CASING, A RADIALLY BLADED ROTARY IMPELLER ECCENTRICALLY MOUNTED IN SAID CYLINDRICAL CHAMBER WITH ITS AXIS OF ROTATION SUBSTANTIALLY HORIZONTAL, SAID IMPELLER BEING CONNECTED TO SAID ROTARY POWER MEANS FOR ROTATION, AN INLET MEANS COMMUNICATING WITH SAID CYLINDRICAL CHAMBER AND SAID CASING
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |