US4431713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for adapting high voltage cells or batteries for lower volt rated applications
Assignee: Duracell Inc USA
•
Filing: 1982-04-15
•
Granted: 1984-02-14
•
Expires: 2002-04-15
Abstract
Abstract A high voltage cell or battery has its voltage reduced for lower voltage applications by means of volt lowering diodes i.e. p-n junction and resistive elements placed in series with the cells and the appliance to be electrically powered.
Inventors
- 👤 John R. Fehling
- 👤 John P. Mathews
- 👤 Thomas Yatabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:44
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H05; H05B; H05B47/00; H05B47/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
A method for adapting a high voltage battery for lower voltage applications comprising the step of reducing the voltage of said battery by placing one or more p-n junctions and one or more resistive elements in series with cells of said battery whereby the cumulative voltage drop caused by said p-n junctions and resistive elements results in a voltage suitable for said lower voltage application.
Claim 2
Independent Claim
65 words
A method for adapting a high voltage battery for lower voltage applications comprising the step of reducing the voltage of said battery by placing one or more p-n junctions and one or more resistive elements in series with cells of said battery whereby the cumulative voltage drop caused by said p-n junctions and resistive elements results in a voltage suitable for said lower voltage application.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein said p-n junction is embodied in a diode.
Claim 4
Dependent Claim
17 words
The method of claim 1 or 2 wherein said resistive elements are comprised of resistive metal tabs.
Claim 5
Dependent Claim
18 words
The method of claim 3 wherein said tabs provide at least one intercell electrical connection within said battery.
Claim 6
Dependent Claim
48 words
A battery comprising one or more cells having a high output voltage in that said battery further contains one or more p-n junctions and one or more resistive elements in series with said cells whereby said output voltage of said battery is lowered thereby by a predetermined amount.
Claim 7
Dependent Claim
48 words
A battery comprising one or more cells having a high output voltage in that said battery further contains one or more p-n junctions and one or more resistive elements in series with said cells whereby said output voltage of said battery is lowered thereby by a predetermined amount.
Claim 8
Dependent Claim
14 words
The battery of claim 5 wherein said p-n junction is embodied in a diode.
Claim 9
Dependent Claim
17 words
The battery of claims 5 or 6 wherein said resistive elements are comprised of resistive metal tabs.
Claim 10
Dependent Claim
26 words
The battery of claim 5 wherein said resistive elements are comprised of resistive metal tabs which provide at least one intercell electrical connection within said battery.
References Cited (Backward Citations)
GB482550A
Cited
US2672498A
Cited
GB973304A
Cited
US3811944A
Cited
US3941135A
Cited
US3885991A
Cited
SU815797A1
Cited
US4306001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-13 | 1987-08-15 | 1988-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-13 | 1991-08-15 | 1992-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-13 | 1995-08-15 | 1996-02-14 | $7700.00 | Window Closed / Lapsed |