Patent US3845835A successfully refreshed from Google Patents.
US3845835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric power plant for land vehicles
Assignee: Individual
•
Filing: 1973-03-14
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Granted: 1974-11-05
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Expires: 1993-03-14
Abstract
Abstract An electric power plant for a land vehicle which includes: an electric motor; two alternators driven by the motor; a voltage regulator for the alternators; and two sets of batteries charged alternately through the regulator. The battery that is not being charged energizes the motor. The alternators are on the drive axle of the vehicle.
Inventors
- 👤 E Petit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:56
CPC Classifications
B; B60; B60K; B60K1/00; B60L; B60L50/00; B60L50/50; B60L50/52; B60L58/00; B60L58/10; B60L58/18; B60L58/21; B60K1/02; B60K2001/001; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
In a vehicle having vehicle-propelling wheels, drive axle means for driving said wheels, an electric drive motor for driving said drive axle means, two sets of batteries for energizing the motor alternately, two voltage generating machines mounted on said drive axle means to be driven therewith for alternately charging said sets of batteries through a regulator, and selective means for connecting the set of batteries which is not being charged to the motor for energizing the motor while disconnecting from the motor the other set of batteries and connecting the said other set to the regulator to be charged, the improvement comprising: first relay means for selectively coupling one said voltage generating machine or the other to the regulator for charging the selected battery, and operating circuit means for operating said relay means and said selective means.
Claim 2
Dependent Claim
137 words
In a vehicle having vehicle-propelling wheels, drive axle means for driving said wheels, an electric drive motor for driving said drive axle means, two sets of batteries for energizing the motor alternately, two voltage generating machines mounted on said drive axle means to be driven therewith for alternately charging said sets of batteries through a regulator, and selective means for connecting the set of batteries which is not being charged to the motor for energizing the motor while disconnecting from the motor the other set of batteries and connecting the said other set to the regulator to be charged, the improvement comprising: first relay means for selectively coupling one said voltage generating machine or the other to the regulator for charging the selected battery, and operating circuit means for operating said relay means and said selective means.
Claim 3
Dependent Claim
16 words
The combination as claimed in claim 1 in which said selective means comprises second relay means.
Claim 4
Dependent Claim
44 words
The combination as claimed in claim 2 in which said operating circuit means includes first and second timer means respectively coupled to said first annd second relay means for controlling the times at which said first and second relay means are energized and de-energized.
Claim 5
Dependent Claim
38 words
The combination as claimed in claim 3 in which said drive axle means includes apertured housings respectively enclosing said two voltage generating machines, and seals for said housings for sealing each voltage generating machine in a ventilated enclosure.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |