Portable battery charger having a separate battery pack

Details Portable battery charger having a separate battery pack Portable battery charger having a separate battery pack

2000-05-25

2001-07-24

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

For battery pack

Reexamination Certificate

active

06265845

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a battery charger for recharging a battery pack mounted on a mobile station or a separate battery pack.
2. Description of the Related Art
Generally, a battery charger for a mobile station is used to recharge a battery pack mounted on a mobile station, including a housing having charging pockets for holding a mobile station attached with a battery pack or separate battery pack and electrical contacts formed in the charging pockets for connecting the battery pack to a power supply. For example, U.S. Pat. No. 5,656,914 granted to Albert L. Nagele discloses a battery charger having two charging pockets, one of which is used for recharging a battery pack mounted on a mobile station, and the other for separate large and small battery packs.
However, such battery chargers cannot accommodate battery packs of different forms and designs from those fit for them. This causes the user to obtain a new battery charger designed to fit each newly bought mobile station of a different model. Further, as the life cycle of the mobile station tends to be shortened, various battery chargers are required to accommodate different models of the mobile station. Besides, a traveler's battery charger has been developed in order to enable a traveler to readily recharge the battery mounted on the mobile station during the journey. Hence, the user, if necessary, must buy two kinds of battery chargers, namely, a desktop battery charger usually used in his home and a traveler's battery charger.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a portable battery charger for accommodating varieties of battery packs and various mobile stations attached with such battery packs.
It is another object of the present invention to provide a traveler's battery charging unit for readily recharging a battery pack mounted on a mobile station during a journey.
It is still another object of the present invention to provide a battery charging unit compatibly used for various electronic instruments such as mobile station, notebook computer, electric shaver, etc.
According to an aspect of the present invention, a portable battery charger having at least one charging pocket for recharging a battery pack mounted on a mobile station or a separate battery pack, comprises: a charger housing including a pair of inside walls facing each other, a ceiling connecting the inside walls, at least one opening side, a mounting space enclosed by the inside walls and ceiling, and a printed circuit board providing at least a pair of electrical contacts; a charging unit having front and rear surfaces, a pair of side surfaces, and at least a top surface detachably mounted in the mounting housing for independently recharging the mobile station while traveling; a guide structure for mounting the charging unit in the charger housing in a vertical fashion, a horizontal fashion, or at any angle between the horizontal and vertical; and an electrical connection device for electrically connecting the charging unit with the charger housing.
The present invention will now be described more specifically with reference to the drawings attached only by way of example.


REFERENCES:
patent: 5229701 (1993-07-01), Léman et al.
patent: 5280229 (1994-01-01), Faude et al.
patent: 5656914 (1997-08-01), Nagele et al.
patent: 5659236 (1997-08-01), Hahn
patent: 6049192 (2000-04-01), Kfoury et al.

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