Tool with battery pack

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7176656
APP PUB NO 20050280393A1
SERIAL NO

10873050

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A handheld tool has an attached position in which the tool is removably attached to a battery pack. The battery pack has an auxiliary battery and output terminals for outputting electricity from the auxiliary battery. The tool includes a load and a primary battery. Input terminals of the tool are configured to connect to the battery output terminals when the tool is in the attached position. A circuit is connected to the load, the primary battery and the input terminals. The circuit is configured to power the load solely from the primary battery when the housing is not in the attached position, and to power the load from both the primary and auxiliary batteries in series when the housing is in the attached position.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
CAMPBELL HAUSFELD/SCOTT FETZER COMPANYA CORPORATION OF DE 100 PRODUCTION DRIVE HARRISON OH 45030

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feldmann, William Mark Fairfield, OH 12 262

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