G - Physics – 01 – R
Patent
G - Physics
01
R
324/70
G01R 11/32 (2006.01) G01R 11/66 (2006.01) G01R 13/02 (2006.01) G01R 21/133 (2006.01) G06F 17/40 (2006.01)
Patent
CA 1135340
Abstract of the Disclosure An A.C. electric power usage measuring and display system using microcomputer based digital processing. Power usage pulses optically sensed from a watthour meter rotary disc and time pulses sensed from the 60 Hz A.C. power line are input to a microprocessor that is programmed to calculate and display the day of the week 1 to 7, the time of day on a 24-hour clock basis, the total watthours and kilowatthours since the start of a billing period on a decimal basis, the peak interval watthours and kilowatthours on a decimal basis, the peak interval start time and end time on a 24-hour clock basis for a peak interval of predetermined time, the peak power demand in kilowatts on a decimal basis, the day of the peak demand on a weekly 1 to 7 basis, the time of the peak demand on a 24-hour clock basis, and the present demand in kilowatts on a decimal basis. This data is displayed in sequence along with a reference decimal number 1 to 12 on an electronic display built into the meter and visible through the glass cover thereof.
338900
Anderson John A.
Born Richard C.
Knopf Frank A.
Sabroff Richard R.
Schutten Herman P.
Corporation Eaton
Ridout & Maybee Llp
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