US4135593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically driven vehicles
Assignee: ZF International UK Ltd
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Filing: 1976-08-31
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Granted: 1979-01-23
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Expires: 1996-08-31
Abstract
Abstract An electrically driven vehicle has a battery pack containing batteries in a support structure, there being defined a compartment in which the battery tops are located and a further compartment in which are the battery lower casings, said structure having inlet and outlet openings for the respective compartments, for through flow of cooling air lengthwise of the vehicle.
Inventors
- 👤 Ronald Fowkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:37
CPC Classifications
B; B60; B60K; B60K1/00; B60K1/04; B60K11/00; B60K11/06; B60L; B60L50/00; B60L50/50; B60L50/60; B60L50/64; B60L50/66; B60L53/00; B60L53/10; B60L53/14; B60L58/00; B60L58/10; B60L58/18; B60L58/24; B60L58/26; B60L8/00; B60L8/006; B60K2001/003; B60K2001/005; B60K2001/0405; B60K2001/0438; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072; Y02T90/00; Y02T90/10; Y02T90/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
An electrically driven vehicle including a support structure, a plurality of rechargeable batteries mounted in the support structure and each having a battery top and a lower casing, an electric motor unit carried on the vehicle, a driver control whereby the electric motor can be regulated, connection means between the batteries and the electric motor unit for transmitting power from the batteries to run the electric motor unit, two separate compartments defined in the support structure, the battery tops being disposed in one of the compartments and the lower casings of the batteries being disposed in the other of the compartments, ventilation openings provided in said structure for allowing cooling air to flow through both said compartments, and fan means to force air through said compartment in which the battery tops are disposed.
Claim 2
Dependent Claim
133 words
An electrically driven vehicle including a support structure, a plurality of rechargeable batteries mounted in the support structure and each having a battery top and a lower casing, an electric motor unit carried on the vehicle, a driver control whereby the electric motor can be regulated, connection means between the batteries and the electric motor unit for transmitting power from the batteries to run the electric motor unit, two separate compartments defined in the support structure, the battery tops being disposed in one of the compartments and the lower casings of the batteries being disposed in the other of the compartments, ventilation openings provided in said structure for allowing cooling air to flow through both said compartments, and fan means to force air through said compartment in which the battery tops are disposed.
Claim 3
Dependent Claim
25 words
An electrically driven vehicle as claimed in claim 1 in which the compartments have respective inlet and outlet openings for flow of air through them.
Claim 4
Dependent Claim
45 words
An electrically driven vehicle as claimed in claim 1 in which the batteries are arranged in lines extending longitudinally of the vehicle, the lines being spaced apart to define ducts through which air can flow in said compartment in which the lower casings are disposed.
Claim 5
Dependent Claim
46 words
An electrically driven vehicle as claimed in claim 1 in which there is sealing means between the battery support structure and part of the vehicle, to prevent escape of gas from the compartment in which the battery tops are disposed, at the sides of said compartment.
Claim 6
Dependent Claim
29 words
An electrically driven vehicle as claimed in claim 1 in which the batteries are supported in their support structure by releasable fastenings which pass through spaces between the batteries.
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) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |