US3200752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stack-up slipper pump with integral flow control valve
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1963-05-16
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Granted: 1965-08-17
•
Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Hubert M Clark
- 👤 Gilbert H Drutchas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:32
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F04C15/00; F04C2/00; F04C2/30; F04C2/34; F04C2/344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A PUMP, A STACK-UP OF PARTS INCLUDING A RING PART HAVING A CONTOURD BORE FORMING A PUMPING CHAMBER, FIRST AND SECOND PORTED PRESSURE PLATE PARS ON OPPOSITE SIDES OF SAID RING AND FORMING INLET AND OUTLET AREAS COMMUNICATING WITH THE INTERIOR OF SAID RING PART, A VALVE PLATE PART CARRYING A FLOW CONTROL VALVE INTEGRALLY THEREWITH AND HAVING A DISCHARGE PASSAGE FOR RECEIVING THE DISCHARGE OF THE PUMP AND DIRECTING A CONTROLLED FLOW OUTWARDLY, SAID VALVE PLATE PART AND SAID FLOW CONTROL VALVE FORMING A SINGLE UNIT, A SEPARATOR PLATE PART BETWEEN SAID VALVE PLATE PART AND ONE OF SAID PRESSURE PLATE PARTS TO REGULATE THE INLET AND OUTLET AREAS, AND RETAINING MEANS ALIGNING AND RETAINING SAID PARTS IN ASSEMBLY WITH ONE ANOTHER, A NOTCHED ROTOR IN SAID RING PART HAVING A SLIPPER MEANS
Claim 2
Dependent Claim
135 words
IN A PUMP, A STACK-UP OF PARTS INCLUDING A RING PART HAVING A CONTOURD BORE FORMING A PUMPING CHAMBER, FIRST AND SECOND PORTED PRESSURE PLATE PARS ON OPPOSITE SIDES OF SAID RING AND FORMING INLET AND OUTLET AREAS COMMUNICATING WITH THE INTERIOR OF SAID RING PART, A VALVE PLATE PART CARRYING A FLOW CONTROL VALVE INTEGRALLY THEREWITH AND HAVING A DISCHARGE PASSAGE FOR RECEIVING THE DISCHARGE OF THE PUMP AND DIRECTING A CONTROLLED FLOW OUTWARDLY, SAID VALVE PLATE PART AND SAID FLOW CONTROL VALVE FORMING A SINGLE UNIT, A SEPARATOR PLATE PART BETWEEN SAID VALVE PLATE PART AND ONE OF SAID PRESSURE PLATE PARTS TO REGULATE THE INLET AND OUTLET AREAS, AND RETAINING MEANS ALIGNING AND RETAINING SAID PARTS IN ASSEMBLY WITH ONE ANOTHER, A NOTCHED ROTOR IN SAID RING PART HAVING A SLIPPER MEANS
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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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |