Patent US3213807A successfully refreshed from Google Patents.
US3213807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet pump assembly
Assignee: PACIFIC COAST ENG CO
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Filing: 1963-09-20
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Granted: 1965-10-26
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Charles D Ramsden
- 👤 Russell J Robertson
- 👤 William G Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:47
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A JET PUMP ASSEMBLY COMPRISING AN OPEN END HOUSING INCLUDING AN ENLARGED SECTION FORMING A PRESSURE CHAMBER HAVING END WALLS, AND AN OUTER CONNECTING WALL, SAID OUTER CONNECTING WALL HAVING PERIPHERALLY SPACED OPENINGS FOR CONNECTION OF A PRESSURE LINE TO EACH, AND A JET NOZZLE ASSEMBLY REMOVABLY INSTALLED IN SAID HOUSING, SAID JET NOZZLE ASSEMBLY INCLUDING A SLEEVE REMOVABLY INSERTABLE THROUGH AN END OF SAID HOUSING AND ADAPTED TO BE SUPPORTED THEREIN, SAID SLEEVE HAVING A PLURALITY OF INWARDLY DIRECTED NOZZLES SPACED CIRCUMFERENTIALLY THEREABOUT IN THE REGION OF SAID PRESSURE CHAMBER, TO PLACE SAID NOZZLES IN FLOW COMMUNICATION WITH SAID PRESSURE LINE OPENINGS, EACH OF SAID NOZZLES HAVING ITS AXIS AT AN ANGLE OF THE ORDER OF 20 DEGREES TO THE LONGITUDINAL AXIS OF SAID SLEEVE, AND AN EFFECTIVE LENGTH APPROXIMATELY ONEHALF THE DIAMTER OF THE NOZZLE, AND MEANS SUBSTANTIALLY SEALING THE NOZZLE REGION OF THE SLEEVE TO SAID PRESSURE CHAMBER.
Claim 2
Dependent Claim
151 words
A JET PUMP ASSEMBLY COMPRISING AN OPEN END HOUSING INCLUDING AN ENLARGED SECTION FORMING A PRESSURE CHAMBER HAVING END WALLS, AND AN OUTER CONNECTING WALL, SAID OUTER CONNECTING WALL HAVING PERIPHERALLY SPACED OPENINGS FOR CONNECTION OF A PRESSURE LINE TO EACH, AND A JET NOZZLE ASSEMBLY REMOVABLY INSTALLED IN SAID HOUSING, SAID JET NOZZLE ASSEMBLY INCLUDING A SLEEVE REMOVABLY INSERTABLE THROUGH AN END OF SAID HOUSING AND ADAPTED TO BE SUPPORTED THEREIN, SAID SLEEVE HAVING A PLURALITY OF INWARDLY DIRECTED NOZZLES SPACED CIRCUMFERENTIALLY THEREABOUT IN THE REGION OF SAID PRESSURE CHAMBER, TO PLACE SAID NOZZLES IN FLOW COMMUNICATION WITH SAID PRESSURE LINE OPENINGS, EACH OF SAID NOZZLES HAVING ITS AXIS AT AN ANGLE OF THE ORDER OF 20 DEGREES TO THE LONGITUDINAL AXIS OF SAID SLEEVE, AND AN EFFECTIVE LENGTH APPROXIMATELY ONEHALF THE DIAMTER OF THE NOZZLE, AND MEANS SUBSTANTIALLY SEALING THE NOZZLE REGION OF THE SLEEVE TO SAID PRESSURE CHAMBER.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |