Patent US3238911A successfully refreshed from Google Patents.
US3238911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary sail boat
Assignee: Individual
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Filing: 1964-06-11
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Granted: 1966-03-08
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Pazulski Lucian
- 👤 Sts Elmwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:44
CPC Classifications
B; B63; B63H; B63H21/00; B63H21/12; B63H21/17; B63B; B63B3/00; B63B3/14; B63B3/38; B63B43/00; B63B43/02; B63B43/04; B63H3/00; B63H3/008; B63J; B63J3/00; B63J3/04; F; F03; F03B; F03B3/00; F03B3/04; B63B2003/382; B63B2003/387; B63B35/00; B63B2035/009; B63J2003/001; B63J2003/002; F05; F05B; F05B2260/00; F05B2260/87
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN AUXILIARY SAILBOAT COMPRISING A HULL, MAST MEANS SUPPORTED BY SAID HULL, SAID MEANS SUPPORTED BY SAID MAST, SAID MAST MEANS AND SAIL MEANS COOPERATING TO PROPEL SAID HULL USING WIND ENERGY, A HOLLOW STABILIZING KEEL INTEGRAL WITH SAID HULL, ELECTRICAL BATTERY MEANS WITHIN SAID KEEL, A PROPELLER MOUNTED ON SAID HULL AND KEEL, SAID PROPELLER HAVING A ROTATABLE SHAFT EXTENDING THEREFROM, MOTOR GENERATOR MEANS COUPLED TO SAID PROPELLER SHAFT, MEANS FOR ELECTRICALLY CONNECTING SAID MOTOR-GENERATOR MEANS WITH SAID BATTERY MEANS, SAID ELECTRICAL CONNECTING MEANS INCLUDING VELOCITY RESPONSIVE SWITCH MEANS COUPLED TO THE ROTOR OF SAID MOTOR-GENERATOR, SAID VELOCITY RESPONSIVE SWITCH MEANS BEING ADAPTED TO SWITCH SAID MOTOR-GENERATOR MEANS TO BATTERY CHARGING OPERATION WHEN THE WIND PROPELS THE SAILBOAT ABOVE A PREDETERMINED VELOCITY AND TO SWITCH SAID MOTOR-GENERATOR MEANS TO PROPELLER DRIVING OPERATION WHEN THE WIND PROPELS THE SAILBOAT BELOW A PREDETERMINED VELOCITY.
Claim 2
Dependent Claim
143 words
AN AUXILIARY SAILBOAT COMPRISING A HULL, MAST MEANS SUPPORTED BY SAID HULL, SAID MEANS SUPPORTED BY SAID MAST, SAID MAST MEANS AND SAIL MEANS COOPERATING TO PROPEL SAID HULL USING WIND ENERGY, A HOLLOW STABILIZING KEEL INTEGRAL WITH SAID HULL, ELECTRICAL BATTERY MEANS WITHIN SAID KEEL, A PROPELLER MOUNTED ON SAID HULL AND KEEL, SAID PROPELLER HAVING A ROTATABLE SHAFT EXTENDING THEREFROM, MOTOR GENERATOR MEANS COUPLED TO SAID PROPELLER SHAFT, MEANS FOR ELECTRICALLY CONNECTING SAID MOTOR-GENERATOR MEANS WITH SAID BATTERY MEANS, SAID ELECTRICAL CONNECTING MEANS INCLUDING VELOCITY RESPONSIVE SWITCH MEANS COUPLED TO THE ROTOR OF SAID MOTOR-GENERATOR, SAID VELOCITY RESPONSIVE SWITCH MEANS BEING ADAPTED TO SWITCH SAID MOTOR-GENERATOR MEANS TO BATTERY CHARGING OPERATION WHEN THE WIND PROPELS THE SAILBOAT ABOVE A PREDETERMINED VELOCITY AND TO SWITCH SAID MOTOR-GENERATOR MEANS TO PROPELLER DRIVING OPERATION WHEN THE WIND PROPELS THE SAILBOAT BELOW A PREDETERMINED VELOCITY.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |