Cordless electric devices having rechargeable battery pack

Details Cordless electric devices having rechargeable battery pack Cordless electric devices having rechargeable battery pack

H - Electricity

02

J

320/2.5

H02J 7/00 (2006.01)

Patent

CA 1047106

ABSTRACT OF THE DISCLOSURE The present invention relates to a rechargeable battery pack for use with a family of cordless electric tools and devices. The tools are adapted to use one or more identical rechargeable battery packs and each pack is adapted to inter- changeably fit into a pocket or any one of a plurality of pockets in the tool or device in which the pack is employed. The battery pack is positively but releasable retained in the respective pocket of the tool or device with which it is used. A pair of standard AC prongs extend from a flat sidewall of the battery pack which is of a relatively flat, rectangular box- like shape. The prongs are adapted for insertion into a standard AC receptacle for charging the battery pack through rectifier means contained in the pack thus eliminating the need for a separate charger. When the battery pack is positioned in the respective pocket of the tool or device, a mechanical switch is actuated by mating formations on the pack and pocket and connects the battery pack in a discharge mode so that the par- ticular tool or device can be powered from the pack battery through the same set of AC prongs. Heavy duty tools or devices are provided with multiple pockets for the reception of a corresponding number of identical battery packs. Cordless hedge and shrub trimmers, grass shears, sprayers, screwdrivers, and lanterns exemplify tools and devices suited to the invention.

305026

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