US3248876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid and vehicle propelling device
Assignee: F E PARSONS CORP
•
Filing: 1962-11-07
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Granted: 1966-05-03
•
Expires: 1982-11-07
Abstract
No abstract record available.
Inventors
- 👤 Fred E Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:01
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/10; B63H11/107; B63H11/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A LIQUID PROPELLING DEVICE, A FORWARD HOUSING SECTION HAVING A ROTOR CAVITY CONTAINING A SMALL INLET AND A LARGE OUTLET END,A REARWARD HOUSING SECTION HAVING A LARGE INLET AND A SMALL OUTLET END, MEANS SECURING THE LARGE ENDS OF SAID SECTIONS TOGETHER, A SUBSTANTIALLY TRUNCATED CONICAL STATOR IN SAID REAR HOUSING SECTION HAVING OUTWARDLY EXTENDING LONGITUDINALLY CURVED VANES AND A CENTRAL HUB, SAID CONICAL STATOR CURVING INWARDLY AT THE LARGE END TO BE SUBSTANTIALLY PARALLEL TO THE STATOR AXIS, A SUBSTANTIALLY TRUNCATED CONICAL ROTOR WITHIN SAID ROTOR CAVITY HAVING RADIAL VANES EXTENDING OUTWARDLY THEREON, SAID CONICAL ROTOR CURVING INWARDLY AT THE LARGE END TO BE SUBSTANTIALLY PARALLEL TO THE ROTOR AXIS, SAID LARGE ENDS BEING ALIGNED AND FORMING WITH THE HOUSING SECTIONS A PASSAGEWAY POR-
Claim 2
Dependent Claim
126 words
IN A LIQUID PROPELLING DEVICE, A FORWARD HOUSING SECTION HAVING A ROTOR CAVITY CONTAINING A SMALL INLET AND A LARGE OUTLET END,A REARWARD HOUSING SECTION HAVING A LARGE INLET AND A SMALL OUTLET END, MEANS SECURING THE LARGE ENDS OF SAID SECTIONS TOGETHER, A SUBSTANTIALLY TRUNCATED CONICAL STATOR IN SAID REAR HOUSING SECTION HAVING OUTWARDLY EXTENDING LONGITUDINALLY CURVED VANES AND A CENTRAL HUB, SAID CONICAL STATOR CURVING INWARDLY AT THE LARGE END TO BE SUBSTANTIALLY PARALLEL TO THE STATOR AXIS, A SUBSTANTIALLY TRUNCATED CONICAL ROTOR WITHIN SAID ROTOR CAVITY HAVING RADIAL VANES EXTENDING OUTWARDLY THEREON, SAID CONICAL ROTOR CURVING INWARDLY AT THE LARGE END TO BE SUBSTANTIALLY PARALLEL TO THE ROTOR AXIS, SAID LARGE ENDS BEING ALIGNED AND FORMING WITH THE HOUSING SECTIONS A PASSAGEWAY POR-
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |