Patent US5352966A successfully refreshed from Google Patents.
US5352966A
Expired / Lapsed
US
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Battery charging device
Assignee: Iron Chargers Inc
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Filing: 1992-09-11
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Granted: 1994-10-04
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Expires: 2012-09-11
Abstract
Abstract A battery charging device uses a primary battery source which is preferably a rechargeable lead acid battery, connected to a secondary battery source, which is preferably a pair of parallel battery circuits each using series-connected non-rechargeable batteries in series with a diode, the primary and secondary battery sources providing a charging voltage output. A switch has a first position in which the charging voltage output can be supplied to an external battery which is to be charged and a second position in which a recharging voltage can be supplied from an external source to recharge the primary battery source, and a third, or off, position in which charging and recharging operations cannot occur.
Inventors
- 👤 James W. Irons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:48
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H01M6/5033; H01M16/00; H02; H02J; H02J7/00; H02J7/34; H02J7/342; H02J7/50; H01M6/5044
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
101 words
A battery charging device comprising a first low-amperage rechargeable battery source providing a first voltage output; a second low-amperage non-rechargeable battery source circuit removably connected in series with said first battery source and providing a second voltage output, said first and second voltage outputs providing a charging voltage output; switching means connected to said charging voltage output, said switching means having a first position for supplying said charging voltage output to an external battery which is to be charged, and a second position for supplying a recharging voltage from an external source to said device for recharging said first battery source.
Claim 2
Dependent Claim
101 words
A battery charging device comprising a first low-amperage rechargeable battery source providing a first voltage output; a second low-amperage non-rechargeable battery source circuit removably connected in series with said first battery source and providing a second voltage output, said first and second voltage outputs providing a charging voltage output; switching means connected to said charging voltage output, said switching means having a first position for supplying said charging voltage output to an external battery which is to be charged, and a second position for supplying a recharging voltage from an external source to said device for recharging said first battery source.
Claim 3
Dependent Claim
59 words
A battery charging device in accordance with claim 1 and further including indicator means for indicating the charging status of the external battery which is to be charged when said switching means is in said first position and for indicating the status of the charging voltage output of said device when said switching means is in said second position.
Claim 4
Dependent Claim
21 words
A battery charging device in accordance with claim 1 where said first battery source is a rechargeable lead acid battery source.
Claim 5
Dependent Claim
48 words
A battery charging device in accordance with claim 1 when said second battery source circuit comprises at least two parallel-connected circuits each including a plurality of series-connected low-amperage non-rechargeable batteries and diode means connected in series with said non-rechargeable batteries for preventing back charging of said series-connected batteries.
Claim 6
Dependent Claim
30 words
A battery charging device in accordance with claim 4, wherein said first battery source is a rechargeable lead acid battery source and said series-connected batteries are zinc-carbide, or alkali, batteries.
Claim 7
Dependent Claim
41 words
A battery charging device in accordance with claim 5, wherein said lead acid battery source is a 12 volt battery source and each of said series-connected batteries comprise three 1.5 volt batteries whereby said charging voltage output is about 16 volts.
Claim 8
Dependent Claim
19 words
A battery charging device in accordance with claim 1 wherein said switching means further includes a third non-operative position.
Claim 9
Dependent Claim
115 words
A battery charging device in accordance with claim 2 wherein said indicator means includes three indicator lights each having a different color whereby when said switching means is in said first position, a first color indicates that the external battery which is to be charged has a voltage output which is less than about 50% of its fully charged voltage output, a second color indicates that the battery which is to be charged has a voltage output greater than about 50% of its fully charged voltage output but less than its fully charged voltage output, and a third color indicator that the battery which is to be charged has a substantially fully charged voltage output.
Claim 10
Dependent Claim
92 words
A battery charging device in accordance with claim 8 wherein when said switching means is in said second position, the first color indicates that the charging voltage output of said device is less than about 50% of its full charging voltage output, the second color indicates that the charging voltage output of said device is greater than about 50% of its charging voltage output but less than its full charging voltage output, and the third color indicator that the charging voltage output of said device is a substantially full charging voltage output.
Claim 11
Dependent Claim
33 words
A battery charging device in accordance with claim 1 and further including plug connector means connected to said switching means for connecting said device to an external battery which is to be charged.
Claim 12
Dependent Claim
65 words
A battery charging device in accordance with claim 10 wherein said battery to be charged is a storage battery in a vehicle, said vehicle having a cigarette lighter receptacle connected to charging system connections for said storage battery, said plug connector means being connectable to said receptacle for permitting said device to charge said storage battery when said switching means is in said first position.
Claim 13
Dependent Claim
53 words
A battery charging device in accordance with claim 11 wherein said plug connector means is connectable to the cigarette lighter receptacle of a vehicle having a substantially fully charged storage battery for permitting the rechargeable first battery source of said device to be recharged when said switching means is in said second position.
Claim 14
Dependent Claim
17 words
A battery charging device in accordance with claim 8 wherein said indicator lights are light emitting diodes.
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) | 1997-10-03 | 1998-04-04 | 1998-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-03 | 2002-04-04 | 2002-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-03 | 2006-04-04 | 2006-10-04 | $7700.00 | Window Closed / Lapsed |