Patent US3733533A successfully refreshed from Google Patents.
US3733533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D. c. charging system
Assignee: Individual
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Filing: 1972-04-24
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Granted: 1973-05-15
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Expires: 1992-04-24
Abstract
Abstract A battery charging system which consists of a probe having opposite-facing conductive surfaces. The probe is insertable between the batteries. Charging current applied to the probe conductive surfaces will charge the battery. The probe can be attached to a bracket to provide a mounting for the batteryoperated device.
Inventors
- 👤 C Fulkerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:09
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/08; F21L4/085; H; H02; H02J; H02J7/00; H02J7/70; H02J7/751; Y; Y10; Y10S; Y10S320/00; Y10S320/22; Y10S320/27
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
166 words
A charging and holding apparatus for a flashlight having a case, first and second batteries positioned in said case in series, and in voltage addition relationship, each battery having a positive pole and a negative surface, a bulb mounted in a reflection holder at one end of said case, spring means at the other end urging said batteries in electrical contact with each other, the bulb and the case, a switch means positioned to selectively interupt the series connection between said batteries and said bulb, comprising: a. a probe having a first and second conductive surface on opposite sides of said probe electrically insulated from each other; b. an opEning through said case positioned in a plane with junction of the positive pole and the negative surface of said batteries and adapted to receive said probe therein; c. means for mounting said probe on a surface; and d. a D.C. source electrically communicating with the conductive surfaces on said probe and poled to charge said battery.
Claim 2
Dependent Claim
166 words
A charging and holding apparatus for a flashlight having a case, first and second batteries positioned in said case in series, and in voltage addition relationship, each battery having a positive pole and a negative surface, a bulb mounted in a reflection holder at one end of said case, spring means at the other end urging said batteries in electrical contact with each other, the bulb and the case, a switch means positioned to selectively interupt the series connection between said batteries and said bulb, comprising: a. a probe having a first and second conductive surface on opposite sides of said probe electrically insulated from each other; b. an opEning through said case positioned in a plane with junction of the positive pole and the negative surface of said batteries and adapted to receive said probe therein; c. means for mounting said probe on a surface; and d. a D.C. source electrically communicating with the conductive surfaces on said probe and poled to charge said battery.
Claim 3
Dependent Claim
37 words
An apparatus as described in claim 1 wherein said probe comprises an L-shapped member, one leg of said member having said conductive surfaces therein, said remaining member having means for mounting said probe to a suitable surface.
Claim 4
Dependent Claim
26 words
An apparatus as described in claim 1 wherein said probe has a sharpened end adapted to separate the battery poles to facilitate insertion between said batteries.
Claim 5
Dependent Claim
28 words
An apparatus as described in claim 1 wherein said switch has an extension of sufficient length to cover said opening when said switch is in the ''''off'''' position.
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) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |