US3093084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Individual
•
Filing: 1961-02-21
•
Granted: 1963-06-11
•
Expires: 1981-02-21
Abstract
No abstract record available.
Inventors
- 👤 Derderian George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:00
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/04; F04D13/043; F04D29/00; F04D29/18; F04D29/22; F04D29/2238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A PUMP COMPRISING A ROTATABLE HOUSING HAVING AXIALLY SPACED END WALLS FACING EACH OTHER AND A CONNECTING PERIPHERAL WALL, IMPELLER BLADES FIXED TO ONE OF THE END WALLS WITH INNER ENDS ADJACENT THE CENTER OF THE HOUSING AND OUTER ENDS OR DISCHARGE TIPS ADJACENT SAID PERIPHERAL WALL OF THE HOUSING, A STATIONARY CENTRAL INLET STRUCTURE CONDUCTING FLUID TO THE INNER ENDS OF THE BLADES, A STATIONARY DIFFUSER SECTION HAVING A SHROUD ADJACENT THE OTHER OF THE END WALLS AND ANGULARLY SPACED DIFFUSER VANES ADJACENT SAID CENTRAL INLET STRUCTURE AND EXTENDING FROM ADJACENT SAID PERIPHERAL WALL BACK TOWARD THE CENTER OF THE HOUSING, THE OUTER TIPS OF THE DIFFUSER VANES BEING PRESENTED TO THE DISCHARGE TIPS OF THE BLADES, A STATIONARY OUTLET STRUCTURE CONDUCTING FLUID FROM THE CENTER OF THE DIFFUSER SECTION, OTHER BLADES FIXED ON SAID OTHER END WALL FOR RETURNING TOWARD SAID PERIPHERAL WALL FLUID WHICH MAY LEAK BETWEEN SAID OTHER END WALL AND THE ADJACENT SHROUD OF THE DIFFUSER SECTION, AND MEANS FOR ROTATING THE HOUSING.
Claim 2
Dependent Claim
168 words
A PUMP COMPRISING A ROTATABLE HOUSING HAVING AXIALLY SPACED END WALLS FACING EACH OTHER AND A CONNECTING PERIPHERAL WALL, IMPELLER BLADES FIXED TO ONE OF THE END WALLS WITH INNER ENDS ADJACENT THE CENTER OF THE HOUSING AND OUTER ENDS OR DISCHARGE TIPS ADJACENT SAID PERIPHERAL WALL OF THE HOUSING, A STATIONARY CENTRAL INLET STRUCTURE CONDUCTING FLUID TO THE INNER ENDS OF THE BLADES, A STATIONARY DIFFUSER SECTION HAVING A SHROUD ADJACENT THE OTHER OF THE END WALLS AND ANGULARLY SPACED DIFFUSER VANES ADJACENT SAID CENTRAL INLET STRUCTURE AND EXTENDING FROM ADJACENT SAID PERIPHERAL WALL BACK TOWARD THE CENTER OF THE HOUSING, THE OUTER TIPS OF THE DIFFUSER VANES BEING PRESENTED TO THE DISCHARGE TIPS OF THE BLADES, A STATIONARY OUTLET STRUCTURE CONDUCTING FLUID FROM THE CENTER OF THE DIFFUSER SECTION, OTHER BLADES FIXED ON SAID OTHER END WALL FOR RETURNING TOWARD SAID PERIPHERAL WALL FLUID WHICH MAY LEAK BETWEEN SAID OTHER END WALL AND THE ADJACENT SHROUD OF THE DIFFUSER SECTION, AND MEANS FOR ROTATING THE HOUSING.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |