US3264546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control of batteries
Assignee: ZF International UK Ltd
•
Filing: 1963-11-13
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Granted: 1966-08-02
•
Expires: 1983-11-13
Abstract
No abstract record available.
Inventors
- 👤 Foster Robert Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:14
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; H01; H01H; H01H37/00; H01H37/02; H01H37/12; H01H37/32; H01H37/52; H01H37/54; H01M; H01M10/00; H01M10/60; H01M10/61; H01M10/615; H01M10/63; H01M10/637; H01M10/65; H01M10/658; H01M50/00; H01M50/50; H01M50/572; H01M50/574; H01M50/581; H01H1/00; H01H1/58; H01H2001/5877; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
MEANS FOR CONTROLLING AN A.C. HEATING CURRENT TO A PAIR OF BATTERIES, COMPRISING AN A.C. HEATING CIRCUIT HAVING SAID BATTERIES IN SERIES THEREIN, A CONDUCTOR IN SERIES WITH SAID BATTERIES, SAID CONDUCTOR HAVING PHYSICAL CHARACTERISTICS SUCH THAT ALTERNATING CURRENT FLOWING THROUGH THE CONDUCTOR TO THE BATTERIES WILL CAUSE THE TEMPERATURE OF THE CONDUCTOR TO VARY IN SUBSTANTIALLY THE SAME MANNER AS THE TEMPERATURE OF THE ELECTROLYTE OF THE BATTERIES, AND A NORMALLY CLOSED THERMALLY SENSITIVE SWITCH IN THERMAL CONTACT WITH SAID CONDUCTOR AND ARRANGED TO OPEN ABOVE A PREDETERMINED TEMPERATURE OF SAID CONDUCTOR, SAID SWITCH BEING CONNECTED IN THE A.C. CIRCUIT.
Claim 2
Dependent Claim
101 words
MEANS FOR CONTROLLING AN A.C. HEATING CURRENT TO A PAIR OF BATTERIES, COMPRISING AN A.C. HEATING CIRCUIT HAVING SAID BATTERIES IN SERIES THEREIN, A CONDUCTOR IN SERIES WITH SAID BATTERIES, SAID CONDUCTOR HAVING PHYSICAL CHARACTERISTICS SUCH THAT ALTERNATING CURRENT FLOWING THROUGH THE CONDUCTOR TO THE BATTERIES WILL CAUSE THE TEMPERATURE OF THE CONDUCTOR TO VARY IN SUBSTANTIALLY THE SAME MANNER AS THE TEMPERATURE OF THE ELECTROLYTE OF THE BATTERIES, AND A NORMALLY CLOSED THERMALLY SENSITIVE SWITCH IN THERMAL CONTACT WITH SAID CONDUCTOR AND ARRANGED TO OPEN ABOVE A PREDETERMINED TEMPERATURE OF SAID CONDUCTOR, SAID SWITCH BEING CONNECTED IN THE A.C. CIRCUIT.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |