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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0536490 (1974-12-26) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 30 인용 특허 : 0 |
Disclosed is a battery operated hand tool which has incorporated directly into its housing a novel battery charging circuit. The charger normally operates off a conventional household power outlet and comprises a solid state switching circuit for recharging the battery with a series of electrical im
A battery operated hand tool comprising a housing, an electrical motor in said housing for operating said tool, means in said housing for coupling said motor to a rechargeable battery, a battery charging circuit in said housing coupled to said motor for charging a battery in said housing in series w
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