US4551666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick charging apparatus
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1983-06-09
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Granted: 1985-11-05
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Expires: 2003-06-09
Abstract
Abstract A quick charging apparatus capable of performing, in addition to normal charging operation for a secondary battery, a quick charging in the battery only a relatively small amount of energy required for performing desired N operations of an electric appliance to which the apparatus is applied, in a very short time. The apparatus comprises means for feeding a first average charging current of a relatively high level in a relatively short time, and means for feeding a second average charging current of a relatively low level in a relatively long time, said relatively small amount of energy being quickly charged with said first high average charging current.
Inventors
- 👤 Sumio Wada
- 👤 Satoru Inakagata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:13
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33507; H02J2207/00; H02J2207/20; Y; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/21; Y10S320/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
A quick charging apparatus comprising means for feeding power from a apower source to a substantially dead secondary battery, a charge controlling means associated with said power feeding means and including means for adjusting fed power energy, means associated with said charge controlling means for feeding to said secondary battery a first average charging current of a relatively high level in a relatively short time so as to charge the battery with a required amount of energy for performing a single operation of an electric appliance to which said apparatus is applied, and means associated with the charge controlling emans for feeding to the battery a second average charging current of a relatively low level in a relatively long time so as to charge the battery to a level at least 80% of a fully chargeable amount of energy; said means for feeding said first average charging current including a first sensor for detecting said required amount of energy for said single operation in said secondary battery, and said means for feeding said second average charging current including a second sensor for detecting the amount of charge in the secondary battery.
Claim 2
Dependent Claim
191 words
A quick charging apparatus comprising means for feeding power from a apower source to a substantially dead secondary battery, a charge controlling means associated with said power feeding means and including means for adjusting fed power energy, means associated with said charge controlling means for feeding to said secondary battery a first average charging current of a relatively high level in a relatively short time so as to charge the battery with a required amount of energy for performing a single operation of an electric appliance to which said apparatus is applied, and means associated with the charge controlling emans for feeding to the battery a second average charging current of a relatively low level in a relatively long time so as to charge the battery to a level at least 80% of a fully chargeable amount of energy; said means for feeding said first average charging current including a first sensor for detecting said required amount of energy for said single operation in said secondary battery, and said means for feeding said second average charging current including a second sensor for detecting the amount of charge in the secondary battery.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1 wherein said first sensor is a timer and said second sensor is a battery voltage detector.
Claim 4
Dependent Claim
17 words
An apparatus according to claim 2 wherein said timer has a set time of about 1 minute.
Claim 5
Dependent Claim
42 words
An apparatus according to claim 1 which further comprises a first means for informing completion of said charge by means of said first average charging current, and a second means for informing charged state by means of said second average charging current.
Claim 6
Dependent Claim
42 words
An apparatus according to claim 4 wherein said first and second informing means comprise respectively a light emitting diode, said diode forming the first informing means emitting a green light and said diode forming the second informing means emitting a red light.
References Cited (Backward Citations)
US3869657A
Cited
US4136311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |