Electrical efficiency meter

Details Electrical efficiency meter Electrical efficiency meter

1978-11-17

1983-08-30

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Combined

235 85R, 324115, G01R 108, G01R 1508

Patent

active

044019432

ABSTRACT:
A device for determining the operational costs of electrical devices. A case encloses a measuring instrument including a circuit which is connectable to a power source and to the device being checked. The instrument has a dial calibrated to give readings directly related to current consumption. The user applies the applicable energy rate at computation means on the case to determine the operational cost in a period of time.

REFERENCES:
patent: 964695 (1910-07-01), Rickman
patent: 2268105 (1941-12-01), Bing
patent: 2461930 (1949-02-01), Simpson

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