Electrical connectors – With insulation other than conductor sheath – Plural-contact coupling part
Reexamination Certificate
2002-02-05
2003-09-30
Ta, Tho D. (Department: 2833)
Electrical connectors
With insulation other than conductor sheath
Plural-contact coupling part
C439S076100, C439S500000
Reexamination Certificate
active
06626703
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a multipurpose adaptor with a universal serial bus (USB) connector. More particularly, the present invention relates to a portable adaptor with a USB connector for charging batteries. In use, the portable adaptor with a USB connector may be electrically connected to a notebook or a dry battery.
2. Description of the Prior Art
As the information technology has been developed, there are many kinds of portable electric apparatuses such as notebooks, cell phones, and personal digital assistant (PDA) are widely used by people in this information age. In use, these portable apparatuses are powered by chargeable batteries such as lithium battery, NiMH battery, Ni-Cd battery. Typically, when the electric power of the batteries is low, these chargeable batteries are charged by using a charger to recover their power. However, the conventional chargers are not user friendly and big in size. Also, one specific charger is often suitable only for one of these kinds of commercial batteries.
Consequently, there is a strong need to provide a multipurpose adaptor with a USB connector for charging batteries of various portable electric apparatuses.
SUMMARY OF THE INVENTION
It is a primary object of the present invention to provide a multipurpose adaptor with a USB connector that is capable of connecting with a notebook or a dry battery. In use, the notebook or dry battery connected with the connector provides an electric apparatus to be charged with electric power. It is advantageous to use the present invention since the connector according to this invention provides more flexible charging options. Further, the adaptor according to the present invention is small in size, and therefore, it is more convenient to use and carry.
According to the claimed invention, the multipurpose adaptor with a universal serial bus (USB) connector, comprising a main body having a chamber therein; a circuit unit disposed in the chamber, the circuit unit comprises a circuit board; and an input connector, an output port, and a battery connecting base that are electrically connected with the circuit board, wherein the input connector is a universal serial bus (USB) connector.
It is to be understood that both the forgoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the invention as claimed. Other advantages and features of the invention will be apparent from the following description, drawings and claims.
REFERENCES:
patent: 5910025 (1999-06-01), Mendolia
patent: 6253183 (2001-06-01), Boucard
patent: 6375057 (2002-04-01), Gorchian
patent: 6424522 (2002-07-01), Lin et al.
patent: 6488545 (2002-12-01), Meyer
Rosenberg , Klein & Lee
Ta Tho D.
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