Axial flow pump
Abstract
Abstract A MULTI-STAGE AXIAL FLOW PUMP DESIGNED TO PUMP FLUIDS WHICH MAY CONTAIN SOLID PARTICLES, WITHOUT JAMMING OR DAMAGE TO THE WORKING PARTS THEREOF. THE PUMP COMPRISES A PLURALITY OF STAGES EACH INCLUDING A STATOR ELEMENT AND A ROTOR ELEMENT CONTAINED WITHIN THE STATOR ELEMENT. THE STAGES, IN TURN, ARE LOCATED WITHIN A CYLINDRICAL HOUSING. A COMPRESSION TYPE SPRING IS LOCATED WITHIN THE HOUSING AND NORMALLY URGES THE STATOR MEMBERS AGAINST ONE ANOTHER AND AGAINST ONE END OF THE HOUSING SO THAT THEY REMAIN STATIONARY DURING NORMAL OPERATION. HOWEVER, IN THE EVENT A FOREIGN PARTICLE BECOMES LODGED BETWEEN THE ROTOR AND THE STATOR, THE STATOR IS PERMITTED TO MOVE OR SHIFT IN AXIAL POSITION SUCH THAT THE FOREIGN PARTICLE MAY PASS THERETHROUGH.
Inventors
- 👤 Robert V Albertson
Bibliographic Details
Claims Analysis
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |