Meter for measuring accumulated power consumption of an electrical appliance during operation of the appliance
DCFirst Claim
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1. An electric power meter, comprising:
- a body member;
prongs on said body member for insertion into an electric socket;
a second socket on said body member for receiving the plug of an electric appliance, said second socket being in electrical communication with said prongs for transferring electric power from said prongs to said second socket;
current measuring means in said body member for measuring the total accumulated electric current flow between said prongs and said second socket on said body member during actual operation of said electrical appliance;
a timer for measuring the duration of said electric current flow;
processing means associated with said body member for receiving data from said current measuring means to calculate electric power consumed from said data; and
display means associated with said body member for displaying measurement results of the power meter thereon;
said displayed measurement results comprising electric power consumed and the time period during which the appliance is in actual operation and said power has been so consumed.
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Abstract
A power meter (10) is provided which can plug into an electric wall socket and it is provided with its own socket (16) for receiving the plug of an electrical appliance. The power meter has means for measuring electric current flow to an electrical appliance and indicates the amount of electrical power consumed by an appliance. In alternative embodiments, the meter is provided as an integral part of an electric wall switch (30) or wall socket (40) or it is built into an electrical appliance (50). In another embodiment, the power meter has a plurality of sockets for receiving the plugs of a number of electrical appliances for separately indicating the power consumption of each appliance.
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Citations
8 Claims
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1. An electric power meter, comprising:
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a body member; prongs on said body member for insertion into an electric socket; a second socket on said body member for receiving the plug of an electric appliance, said second socket being in electrical communication with said prongs for transferring electric power from said prongs to said second socket; current measuring means in said body member for measuring the total accumulated electric current flow between said prongs and said second socket on said body member during actual operation of said electrical appliance; a timer for measuring the duration of said electric current flow; processing means associated with said body member for receiving data from said current measuring means to calculate electric power consumed from said data; and display means associated with said body member for displaying measurement results of the power meter thereon;
said displayed measurement results comprising electric power consumed and the time period during which the appliance is in actual operation and said power has been so consumed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification