US3812379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline engine and electric motor system for boats or the like
Assignee: Individual
•
Filing: 1972-08-04
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Granted: 1974-05-21
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Expires: 1992-08-04
Abstract
Abstract A combination propulsion system for boats or the like is provided comprising a first, gasoline engine, a second, electric motor and means for coupling the motor to the engine whereby the electric motor may be reversed and used as a generator when the gasoline engine is running for recharging a battery.
Inventors
- 👤 B Kaufman
- 👤 W Kitovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:57
CPC Classifications
B; B63; B63H; B63H21/00; B63H21/20; B63H23/00; B63H23/02; B63H23/10; B63H23/18; B63J; B63J3/00; B63J3/02; F; F02; F02B; F02B63/00; F02B63/04; B63H20/00; B63H20/36; B63H2021/202; B63H2021/205; B63H21/12; B63H21/14; B63H21/17; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T70/00; Y02T70/50; Y02T70/5218; Y02T70/5236
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
A combined boat propulsion and battery charging system comprising: a. a propeller; b. a drive shaft coupled to said propeller; c. an internal combustion engine provided with an output shaft adapted to be selectively and removably coupled to said drive shaft; d. a reversible, electrically energizable motor means having an output shaft adapted to be selectively and removably coupled to said drive shaft when said output shaft of said engine is not coupled to said drive shaft; e. first coupling means adapted for securing said output shaft of said engine and said motor means to each other for driving said motor means with said engine for generating electrical energy; and f. second coupling means for securing either said engine or said motor means to said drive shaft in order to provide means for propelling the boat when said first coupling means is not being used.
Claim 2
Dependent Claim
145 words
A combined boat propulsion and battery charging system comprising: a. a propeller; b. a drive shaft coupled to said propeller; c. an internal combustion engine provided with an output shaft adapted to be selectively and removably coupled to said drive shaft; d. a reversible, electrically energizable motor means having an output shaft adapted to be selectively and removably coupled to said drive shaft when said output shaft of said engine is not coupled to said drive shaft; e. first coupling means adapted for securing said output shaft of said engine and said motor means to each other for driving said motor means with said engine for generating electrical energy; and f. second coupling means for securing either said engine or said motor means to said drive shaft in order to provide means for propelling the boat when said first coupling means is not being used.
Claim 3
Dependent Claim
24 words
The system in accordance with claim 1 wherein there is further included support means for mounting said motor and engine in a coupled relationship.
Claim 4
Dependent Claim
32 words
The system in accordance with claim 1 wherein said coupliNg means comprises a tubular column for receiving said output shafts of said engine and said motor means at the opposite ends thereof.
Claim 5
Dependent Claim
29 words
The system in accordance with claim 1 wherein there is further included means for keying said output shafts of said engine and said motor means to said coupling means.
Claim 6
Dependent Claim
37 words
The system in accordance with claim 3 wherein said output shafts of said engine and said motor means are at least partially D-shaped and said tubular column includes mating D-shaped bores at least at the ends thereof.
Claim 7
Dependent Claim
23 words
The system in accordance with claim 1 wherein there is further included a stand for supporting said engine and motor when coupled together.
Claim 8
Dependent Claim
27 words
The system in accordance with claim 6 wherein said stand comprises a plate and leg means depending from said plate, said coupling means extending through said plate.
Claim 9
Dependent Claim
17 words
The system in accordance with claim 7 wherein said leg means are foldably secured to said plate.
Claim 10
Dependent Claim
15 words
The system in accordance with claim 1 wherein said internal combustion engine is gasoline fueled.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |