Apparatus for controlling battery discharge
AssigneeBraun GmbH
InventorsGerhard Lang, Jurgen Wolf
Life of this patent
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Abstract
The invention is directed to an electrical device in which an electrical load is powered by a battery via an electronic switching device. A display means serves the function of indicating the charge status of the battery, and a time measurement means determines the connection time of the load to the battery. Following expiration of a predetermined connection time of the load to the battery, when the display means indicates the charge status "zero", the time measurement means will disconnect the electrical load from the battery by means of the electronic switching device.
Claims6
Battery powered electrical shaver or hair cutter comprising cutter apparatus, a motor for driving said cutter apparatus, said motor being adapted to be powered by a battery, and circuitry operative upon detection of a defined discharging condition of said battery for reducing power to said motor in multiple steps or continually so that its rotational frequency is reduced down to zero in steps or continually to limit risk that hairs can be snagged.
Dependencies are inferred from the claim text.