Cash register power supply system

Details Cash register power supply system Cash register power supply system

1980-01-21

1981-03-10

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

307 66, 320 14, 320 38, 365229, H02J 700, H02J 900

Patent

active

042556970

ABSTRACT:
A cash register power supply system is disclosed which isolates the work system from the battery charging system. A battery charger charges one of two batteries while the other battery drives a cash register. A timer and switching mechanism switch the batteries between charge and work systems at regular time intervals. Thus, the work system is isolated from the house current and the possibility of power surges which can affect the cash register memory.

REFERENCES:
patent: 401255 (1889-04-01), Currie
patent: 979155 (1910-12-01), Gugler
patent: 3845835 (1974-11-01), Petit
patent: 3909685 (1975-09-01), Baker et al.
patent: 4109161 (1978-08-01), Iijima
patent: 4122359 (1978-10-01), Breikss
patent: 4143283 (1979-03-01), Graf et al.
patent: 4214172 (1980-07-01), See

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