Patent US3109407A successfully refreshed from Google Patents.
US3109407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet drive mounting mechanism for power boat
Assignee: Textron Inc
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Filing: 1961-11-27
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Granted: 1963-11-05
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Expires: 1981-11-27
Abstract
No abstract record available.
Inventors
- 👤 Richard W Dorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:52
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/08; B63H2011/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN A JET DRIVE BOAT, A HULL HAVING AN INDENTED RECESS IN THE STERN THEREOF AND OPENING ONTO THE BOTTOM AND AFTER END OF THE HULL, THE SIDES AND TOP OF THE RECESS BEING SEALED TO EACH OTHER AND TO THE HULL, THE ONLY OPENING FROM THE INTERIOR OF THE HULL INTO THE RECESS BEING A SHAFT HOLE IN THE FORWARD END OF THE RECESS, AN INSERT FOR INSERTION INTO SUCH RECESS FLUSH WITH THE BOTTOM OF THE HULL, MEANS FOR REMOVABLY SECURING THE INSERT IN SUCH RECESS, A WATER PASSAGE THROUGH SAID INSERT OPENLY COMMUNICATING FROM THE BOTTOM THROUGH THE AFTER END OF THE INSERT, MEANS FOR MOUNTING A POWER DRIVEN PUMP ON THE INSERT OVER THE AFTER END OF THE PASSAGE FOR DRAWING WATER IN WHICH THE HULL IS FLOATING FROM BENEATH THE INSERT AND DISCHARGING IT IN A HIGH VELOCITY JET REARWARDLY FROM THE HULL, AND SEALING MEANS FOR SEALING TO THE HULL A DRIVE SHAFT EXTENDING FROM THE INTERIOR OF THE HULL THROUGH SUCH SHAFT HOLE TO THE PUMP.
Claim 2
Dependent Claim
173 words
IN A JET DRIVE BOAT, A HULL HAVING AN INDENTED RECESS IN THE STERN THEREOF AND OPENING ONTO THE BOTTOM AND AFTER END OF THE HULL, THE SIDES AND TOP OF THE RECESS BEING SEALED TO EACH OTHER AND TO THE HULL, THE ONLY OPENING FROM THE INTERIOR OF THE HULL INTO THE RECESS BEING A SHAFT HOLE IN THE FORWARD END OF THE RECESS, AN INSERT FOR INSERTION INTO SUCH RECESS FLUSH WITH THE BOTTOM OF THE HULL, MEANS FOR REMOVABLY SECURING THE INSERT IN SUCH RECESS, A WATER PASSAGE THROUGH SAID INSERT OPENLY COMMUNICATING FROM THE BOTTOM THROUGH THE AFTER END OF THE INSERT, MEANS FOR MOUNTING A POWER DRIVEN PUMP ON THE INSERT OVER THE AFTER END OF THE PASSAGE FOR DRAWING WATER IN WHICH THE HULL IS FLOATING FROM BENEATH THE INSERT AND DISCHARGING IT IN A HIGH VELOCITY JET REARWARDLY FROM THE HULL, AND SEALING MEANS FOR SEALING TO THE HULL A DRIVE SHAFT EXTENDING FROM THE INTERIOR OF THE HULL THROUGH SUCH SHAFT HOLE TO THE PUMP.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |