Charge device for secondary batteries

Details Charge device for secondary batteries Charge device for secondary batteries

Filed on

1979-04-10

Date issued

1981-04-07

Examiner

Hix, L. T.

Patent Class

Electricity: battery or capacitor charging or discharging

SubClass

Serially connected batteries or cells

SubSubClass

With discharge of cells or batteries

Other Related Categories

354 60R, 354234, 354266, 320 39, G03B 2900, G03B 726, H02J 704

Type

Patent

Status

active

Patent number

042602300

Description

ABSTRACT:
The present invention relates to a charge device for charging secondary batteries, particularly for a camera to which a system for charging secondary batteries by means of electromagnetic coupling is applied. In the charge system in accordance with the present invention, the shutter curtain control magnet at the side of the camera is used as the secondary coil in such a manner that the above charging system can be applied to the camera by means of a simple construction. The purpose of such construction is to prevent over-charging by automatically stopping the charging when the secondary battery has been charged up to a certain determined level or controlling the charging time by means of a timer.

REFERENCES:
patent: 3215922 (1965-11-01), Olsen et al.
patent: 3321691 (1967-05-01), Walsh
patent: 4136310 (1979-01-01), Foster
patent: 4137493 (1979-01-01), Smith
"Sanyo Technical Review", vol. 9, No. 2, Aug. 1977.

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