Patent US3560106A successfully refreshed from Google Patents.
US3560106A
Expired / Lapsed
US
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Slurry handling pump
Assignee: Sahlstrom Manufacturing Co
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Filing: 1969-02-13
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Granted: 1971-02-02
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Expires: 1989-02-13
Abstract
Abstract A SLURRY HANDLING PUMP INCLUDING A SCROOL CASING AND A CENTRIFUGRAL IMPELLER HAVING ANGULARLY SPACED BLADES WITH THEIR INNER EDGES BEING RADIALLY SPACED FROM THE AXIS OF ROTATION OF THE IMPELLER. PORTIONS OF THE FREE ENDS OF THE BLADES TOWARDS THE AXIS OF ROTATION EXTEND OUTWARDLY OF THE PUMP INLET. THE PUMP INLET INCLUDES A PAIR OF SLOTS EXTENDING RADIALLY FROM THE EDGE THEREOF.
Inventors
- 👤 Nils-Johan Sahlstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:36
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2261; F04D29/2288; F04D29/2205; F04D29/2216; F04D7/00; F04D7/02; F04D7/04; F04D7/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |