Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Meter protection or fraud combatting
Patent
1980-05-06
1982-04-27
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Meter protection or fraud combatting
188139, 324137, G01R 1124, G01R 1102, B60T 712
Patent
active
043273246
ABSTRACT:
A watthour meter with a rotatable metering movement responsive to the flow of energy through the meter includes a gravity activatable contact or stop element to engage the metering movement when the meter is inverted for preventing deregistration of consumed energy. Latching means can lock the element in a position showing that the meter had been inverted.
REFERENCES:
patent: 3915112 (1975-10-01), Forester
patent: 4034290 (1977-07-01), Warren
patent: 4039943 (1977-08-01), Tapscott
patent: 4104588 (1978-08-01), Westberry
Westinghouse Catalog 42-300; pp. 1 & 2, Dec., 1976.
Westinghouse Brochure SA-6794D4S, "High Security Meter", 4 pages.
Karlsen Ernest F.
Southern California Edison Company
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