Patent US3187708A successfully refreshed from Google Patents.
US3187708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propulsion device
Assignee: PROPULSION RES Inc
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Filing: 1961-06-07
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Granted: 1965-06-08
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Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 Fox Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:37
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/10; B63H11/107; B63H11/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A WATER JET PROPULSION UNIT COMPRISING A HOUSING, AN IMPELLER ROTATABLY MOUNTED IN SAID HOUSING, A SOCKET PORTION IN SAID HOUSING TO THE REAR OF SAID IMPELLER, A DISCHARGE NOZZLE PIVOTALLY MOUNTED ON A VERTICAL AXIS IN SAID SOCKET, A DISCHARGE PORT IN THE REAR OF SAID DISCHARGE NOZZLE, A REVERSE PORT NEAR SAID DISCHARGE PORT, AND A DEFLECTION DAMPER PIVOTALLY MOUNTED ON A HORIZONTAL AXIS WITHIN SAID DISCHARGE NOZZLE PORT AREA WHEREBY WATER BEING DISCHARGED THROUGH SAID DISCHARGE NOZZLE MAY BE DEFLECTED THROUGH SAID DISCHARGE AND REVERSE PORTS SELECTIVELY AND PROPORTIONATELY AT WILL, SAID DEFLECTION DAMPER INCLUDING A PLATE NOTCHED AT ITS SIDES AND A SPLIT YOKE JOURNALED IN SAID DISCHARGE NOZZLE AND HAVING BIFURCATED ENDS ENGAGING THE NOTCHES IN SAID DEFLECTION DAMPER PLATE.
Claim 2
Dependent Claim
125 words
A WATER JET PROPULSION UNIT COMPRISING A HOUSING, AN IMPELLER ROTATABLY MOUNTED IN SAID HOUSING, A SOCKET PORTION IN SAID HOUSING TO THE REAR OF SAID IMPELLER, A DISCHARGE NOZZLE PIVOTALLY MOUNTED ON A VERTICAL AXIS IN SAID SOCKET, A DISCHARGE PORT IN THE REAR OF SAID DISCHARGE NOZZLE, A REVERSE PORT NEAR SAID DISCHARGE PORT, AND A DEFLECTION DAMPER PIVOTALLY MOUNTED ON A HORIZONTAL AXIS WITHIN SAID DISCHARGE NOZZLE PORT AREA WHEREBY WATER BEING DISCHARGED THROUGH SAID DISCHARGE NOZZLE MAY BE DEFLECTED THROUGH SAID DISCHARGE AND REVERSE PORTS SELECTIVELY AND PROPORTIONATELY AT WILL, SAID DEFLECTION DAMPER INCLUDING A PLATE NOTCHED AT ITS SIDES AND A SPLIT YOKE JOURNALED IN SAID DISCHARGE NOZZLE AND HAVING BIFURCATED ENDS ENGAGING THE NOTCHES IN SAID DEFLECTION DAMPER PLATE.
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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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |