US3288100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat and jet propulsion means therefor
Assignee: JOE M VALDESPINO
•
Filing: 1964-06-26
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Granted: 1966-11-29
•
Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Clifford B Cox
- 👤 Joe M Valdespino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:40
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/32; B63B1/34; B63B1/38; B63H; B63H11/00; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
THE COMBINATION OF A BOAT HAVING A TUNNEL ALONG THE LENGTH THEREOF, SAID TUNNEL BEING RELATIVELY SHALLOW AT THE BOW AND INCREASING SHARPLY TO A RELATIVELY DEEP INTERMEDIATE PORTION AND THEN TAPERING GRADUALLY TO A RELATIVELY SHALLOW PORTION AT THE STERN, JET PROPULSION MEANS MOUNTED ON SAID BOAT AND INCLUDING A PUMP WITHIN THE FORWARD PORTION OF SAID BOAT, MEANS FOR ADMITTING WATER TO SAID PUMP FROM THE EXTERIOR OF SAID BOAT, A SOURCE OF POWER FOR DRIVNG SAID PUMP, A VENTURI TYPE ASPIRATOR NOZZLE LOCATED WITHIN THE RELATIVELY DEEP PORTION OF SAID TUNNEL CONSTRUCTED TO RECEIVE WATER UNDER PRESSURE FROM SAID PUMP, SAID NOZZLE HAVING A BORE AT ONE END CONNECTED TO A REDUCED THROAT AND A DIVERGING DISCHARGE FROM SAID THROAT, AN OPENING LOCATED IN SAID DIVERGING PORTION IN SPACED RELATION TO SAID THROAT FOR ADMITTING AIR INTO THE WATER PASSING THROUGH SAID NOZZLE WHEREBY SAID AIR WOULD BE ENTRAINED IN THE WATER AND CAUSE ACCELERATED THRUST THEREOF.
Claim 2
Dependent Claim
160 words
THE COMBINATION OF A BOAT HAVING A TUNNEL ALONG THE LENGTH THEREOF, SAID TUNNEL BEING RELATIVELY SHALLOW AT THE BOW AND INCREASING SHARPLY TO A RELATIVELY DEEP INTERMEDIATE PORTION AND THEN TAPERING GRADUALLY TO A RELATIVELY SHALLOW PORTION AT THE STERN, JET PROPULSION MEANS MOUNTED ON SAID BOAT AND INCLUDING A PUMP WITHIN THE FORWARD PORTION OF SAID BOAT, MEANS FOR ADMITTING WATER TO SAID PUMP FROM THE EXTERIOR OF SAID BOAT, A SOURCE OF POWER FOR DRIVNG SAID PUMP, A VENTURI TYPE ASPIRATOR NOZZLE LOCATED WITHIN THE RELATIVELY DEEP PORTION OF SAID TUNNEL CONSTRUCTED TO RECEIVE WATER UNDER PRESSURE FROM SAID PUMP, SAID NOZZLE HAVING A BORE AT ONE END CONNECTED TO A REDUCED THROAT AND A DIVERGING DISCHARGE FROM SAID THROAT, AN OPENING LOCATED IN SAID DIVERGING PORTION IN SPACED RELATION TO SAID THROAT FOR ADMITTING AIR INTO THE WATER PASSING THROUGH SAID NOZZLE WHEREBY SAID AIR WOULD BE ENTRAINED IN THE WATER AND CAUSE ACCELERATED THRUST THEREOF.
References Cited (Backward Citations)
US215842A
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US793944A
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US2285023A
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US2322790A
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US3183663A
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |