Modular cordless tools

Details Modular cordless tools Modular cordless tools

1974-08-23

1976-08-03

Miller, J D

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

200157, 310 50, 339 58, 339 88R, 339 91R, B25F 300, H01R 1354, H01M 1046

Patent

active

039731790

ABSTRACT:
Cordless electric tools or the like comprising a power handle and a plurality of diverse tool heads detachably securable thereto. The power handle includes battery means therein and operator controlled switch means, whereas each of the diverse tool heads may include an electric motor and an output means. The tool heads and power handle include interengageable means constructed for quick mechanical and electrical interconnection therebetween facilitating quick connection and disconnection of the power handle from the various tool heads without requiring any special tools or implements. Electrical interconnection is made automatically upon mechanical interconnection. In addition, a battery charger for the battery means may include similar mechanical and electrical connection means operatively engageable with the power handle to afford ready and easy charging of the battery means between uses of the power handle.

REFERENCES:
patent: 3533119 (1970-10-01), Dokos
patent: 3550280 (1970-12-01), Palm
patent: 3796984 (1974-03-01), Selinko

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