Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1975-08-25
1978-04-11
Hickey, Robert J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
30DIG1, 310 50, H02J 700, H01M 4500
Patent
active
040841235
ABSTRACT:
A family of cordless electric tools and devices is adapted to use one or more identical rechargeable battery packs and each pack is adapted to interchangeably 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 releasably 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 particular 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.
REFERENCES:
patent: 3728664 (1973-04-01), Hurst
patent: 3734207 (1973-05-01), Fishbein
patent: 3757194 (1973-09-01), Weber et al.
Operating Manual for "Uher 4000 Report-S" Tape Recorder (portable), p. 2.
"Uher 4000-Report" Tape Recorder (Battery Compartment), Mfd. by Uher, W. Germany.
Edgell James E.
Lineback Lynn D.
Disston, Inc.
Hickey Robert J.
Olive B. B.
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