Patent US3212450A successfully refreshed from Google Patents.
US3212450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector type pumping apparatus
Assignee: Individual
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Filing: 1962-12-17
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Granted: 1965-10-19
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Castellot Antonio Echeverria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:04
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04; F04D9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
AN EJECTOR TYPE PUMPING APPARATUS FOR RAISING FLUIDS COMPRISING A FLUID PASSAGE MEANS HAVING AT LEAST ONE OPENING IN A LOWER PORTION THEREOF, A CLOSED JACKET MEMBER SURROUNDING AND SECURED TO A LOWER END OF SAID FLUID PASSAGE MEANS DEFINING A SUCTION CHAMBER COMMUNICATING WITH SAID OPENING IN SAID FLUID PASSAGE MEANS, SAID CLOSED JACKET MEMBER HAVING INTAKE OPENINGS, ONE WAY VALVE MEANS DISPOSED IN SAID SUCTION CHAMBER BETWEEN SAID INTAKE OPENINGS AND SAID OPENING IN SAID FLUID PASSAGE MEANS, AND EJECTOR TYPE IMPELLER HAVING AN ENTRAINING ZONE DISPOSED IN SAID FLUID PASSAGE MEANS AND DISPLACEABLE ALONG A PREDETERMINED LENGTH THEREOF, SAID IMPELLER HAV-ING AT LEAST ONE INLET PORT CCOMMUNICATING WITH THE ENTRAINING ZONE THEREOF, MEANS DISPOSED IN SAID FLUID PASSAGE MEANS AT ONE END OF SAID PREDETERMINED LENGTH FOR SEATING SAID IMPELLER SO THAT THE INLET PORT THEREIN REGISTERS WITH SAID OPENING IN SAID FLUID PASSAGE MEANS AND FLUID MEANS FOR DISPLACING SAID IMPELLER ALONG SAID PREDETERMINED LENGTH OF SAID FLUID PASSAGE MEANS.
Claim 2
Dependent Claim
164 words
AN EJECTOR TYPE PUMPING APPARATUS FOR RAISING FLUIDS COMPRISING A FLUID PASSAGE MEANS HAVING AT LEAST ONE OPENING IN A LOWER PORTION THEREOF, A CLOSED JACKET MEMBER SURROUNDING AND SECURED TO A LOWER END OF SAID FLUID PASSAGE MEANS DEFINING A SUCTION CHAMBER COMMUNICATING WITH SAID OPENING IN SAID FLUID PASSAGE MEANS, SAID CLOSED JACKET MEMBER HAVING INTAKE OPENINGS, ONE WAY VALVE MEANS DISPOSED IN SAID SUCTION CHAMBER BETWEEN SAID INTAKE OPENINGS AND SAID OPENING IN SAID FLUID PASSAGE MEANS, AND EJECTOR TYPE IMPELLER HAVING AN ENTRAINING ZONE DISPOSED IN SAID FLUID PASSAGE MEANS AND DISPLACEABLE ALONG A PREDETERMINED LENGTH THEREOF, SAID IMPELLER HAV-ING AT LEAST ONE INLET PORT CCOMMUNICATING WITH THE ENTRAINING ZONE THEREOF, MEANS DISPOSED IN SAID FLUID PASSAGE MEANS AT ONE END OF SAID PREDETERMINED LENGTH FOR SEATING SAID IMPELLER SO THAT THE INLET PORT THEREIN REGISTERS WITH SAID OPENING IN SAID FLUID PASSAGE MEANS AND FLUID MEANS FOR DISPLACING SAID IMPELLER ALONG SAID PREDETERMINED LENGTH OF SAID FLUID PASSAGE MEANS.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |