Electronic non-volatile elapsed time meter

Details Electronic non-volatile elapsed time meter Electronic non-volatile elapsed time meter

1986-04-16

1987-03-24

Miska, Vit W.

Horology: time measuring systems or devices

Controlled by a disparate device

Electrical device

368107, 368113, G04F 800

Patent

active

046521399

ABSTRACT:
An electronic non-volatile elapsed time meter useful for generating elapsed time information when connected in parallel with an input supply voltage supplying power to a power driven device. Visual readouts are continuously generated during time of use of the input supply voltage and accumulated intervals of time of use are stored in a non-volatile memory when power is removed from the device. Upon a later resumption of power usage, the stored non-volatile data is retrieved, displayed and summed with the new generated elapsed time information. This meter is applicable to both AC and DC operations.

REFERENCES:
patent: 3351910 (1967-11-01), Miller et al.
patent: 3689839 (1972-09-01), Gother
patent: 3706036 (1972-12-01), Marwell et al.
patent: 4376995 (1983-03-01), Shimizu
patent: 4571692 (1986-02-01), Germer

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