US3373690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically driven power pump
Assignee: Individual
•
Filing: 1966-08-01
•
Granted: 1968-03-19
•
Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Unger Ladislaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:54
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0057; F04C15/008; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0606; F04D13/064; H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN ELECTRICALLY DRIVEN PUMP FOR LIQUID OR GASEOUS FLUIDS COMPRISING AN ELECTRIC MOTOR HAVING A STATOR, A PIPE POSITIONED WITHIN THE STATOR YOKE, A ROTOR POSITIONED CONCENTRICALLY WITHIN THE PIPE AND AXIALLY DISPLACEABLE THEREIN, THE ROTOR AND PIPE DEFINING A FLUID PASSAGEWAY THEREBETWEEN, EACH END OF THE PIPE BEING CLOSED WITH A CAP MEANS, A POSITIVE DISPLACEMENT ROTARY PUMP MEANS BEING POSITIONED BETWEEN ONE END OF THE ROTOR AND THE CAP MEANS RESPECTIVE THERETO, THE ROTARY PUMP MEANS COMPRISING A PUMP SEALING SURFACE MOUNTED ON THE ROTOR FOR ROTATION THEREWITH WITH A PUMP ROTOR MEANS FIXEDLY ATTACHED THERETO, AND A STATIONARY PUMP ELEMENT ATTACHED TO THE RESPECTIVE CAP MEANS AND POSITIONED FOR PUMPING COOPERATION WITH THE PUMP ROTOR MEANS.
Claim 2
Dependent Claim
119 words
AN ELECTRICALLY DRIVEN PUMP FOR LIQUID OR GASEOUS FLUIDS COMPRISING AN ELECTRIC MOTOR HAVING A STATOR, A PIPE POSITIONED WITHIN THE STATOR YOKE, A ROTOR POSITIONED CONCENTRICALLY WITHIN THE PIPE AND AXIALLY DISPLACEABLE THEREIN, THE ROTOR AND PIPE DEFINING A FLUID PASSAGEWAY THEREBETWEEN, EACH END OF THE PIPE BEING CLOSED WITH A CAP MEANS, A POSITIVE DISPLACEMENT ROTARY PUMP MEANS BEING POSITIONED BETWEEN ONE END OF THE ROTOR AND THE CAP MEANS RESPECTIVE THERETO, THE ROTARY PUMP MEANS COMPRISING A PUMP SEALING SURFACE MOUNTED ON THE ROTOR FOR ROTATION THEREWITH WITH A PUMP ROTOR MEANS FIXEDLY ATTACHED THERETO, AND A STATIONARY PUMP ELEMENT ATTACHED TO THE RESPECTIVE CAP MEANS AND POSITIONED FOR PUMPING COOPERATION WITH THE PUMP ROTOR MEANS.
References Cited (Backward Citations)
US1819228A
Cited
US2958296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |