# US 9,882,382 B2 · Power monitoring master load strip with triple slave loads > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,882,382 B2 - Document ID: US9882382B2 - Status: Granted - Kind: B2 - Application number: 14/193,225 - Filed: 2014-02-28 - Published: 2015-01-01 - Granted: 2018-01-30 - Earliest claimed: 2013-03-25 - Applicants: Michel Balthazar - Inventors: Michel Balthazar - Web page: https://patentgrep.com/patent/US9882382B2 ## CPC - H02J 7/575: {Parallel/serial switching of connection of batteries to charge or load circuit} - G06F 1/266: {Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips} - H02J 3/00: Circuit arrangements for AC mains or AC distribution networks - H02J 7/342: {The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68)} - H02J 9/005: {using a power saving mode (for copiers G03G15/5004)} - H01R 24/68: mounted on directly pluggable apparatus - H01R 25/006: {the coupling part being secured to apparatus or structure, e.g. duplex wall receptacle} - H01R 31/065: {with built-in electric apparatus} - H02J 2207/40: adapted for charging from various sources, e.g. AC, DC or multivoltage - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A horizontal electrical power strip device including a built in power plug, one master power outlet and triple slave power outlets controlled independently and simultaneously from each other through a master outlet. A power-sensing device (relay element) is coupled to a switch that allows the slave power outlets to be automatically turned on or off (controlled by the master outlet drawing sufficient current) and having different states simultaneously. Thus when current is being drawn from the master outlet the first slave is switched to an on (closed circuit) state, the second slave is switched to an off (open circuit) state while the third slave stays uninterrupted in an indefinite on (closed circuit) state. Having both simultaneously similar and opposite states of that to the master, the slave outlets offer a wide range of uses from power tools to home appliances including sharing of the same electrical power circuit. ## Claims ### Claim 1 A power strip device comprising: a power plug including a line input and a neutral input; a relay electrically coupled between the line input and the neutral input of the power plug; a master power outlet including a line output and a neutral output, the line output of the master power outlet being electrically coupled to the line input of the power plug through the relay; a plurality of slave power outlets each having a neutral output electrically coupled to the neutral input of the power plug, the plurality of slave power outlets including a first slave power outlet, a second slave power outlet, and a third slave power outlet; and a switch having a switch input and two switch outputs, the switch input being electrically coupled to the relay and the two switch outputs being electrically coupled to the line outputs of the first slave power outlet and the second slave power outlets; and outlet, respectively, wherein the relay is configured to cause the switch to switch the first slave power outlet to an on state or an off state and to switch the second slave power outlet to a state opposite the state of the first slave power outlet based upon the amount of current being supplied to the master power outlet, wherein the master power outlet is maintained in an on state so that a first external device electrically connected to the master power outlet can continuously draw current through the relay from the power plug, and when the first external device electrically connected to the master power outlet draws a current greater than a predetermined current level through the relay from the power plug, the relay causes the first slave power outlet to switch to an on state so that a second external device set to an on state and electrically coupled to the first slave power outlet is placed in a fully operational state at the same time the first external device is placed in a fully operational state, and the relay causes the second slave power outlet to switch to an off state so that a third external device set to an on state and electrically coupled to the second slave power outlet cannot draw current from the power plug at the same time the first external device is placed in a fully operational state thereby preventing the first, second, and third external devices from operating at the same time to cause overloading of an electrical system to which the power plug is electrically connected, and wherein the third slave power outlet is maintained in an on state whether or not the first external device connected to the master power outlet draws current greater than a predetermined current through the relay from the power plug. ### Claim 2 (depends on 1) The power strip device of claim 1, wherein the relay is an electromechanical relay device. ### Claim 3 (depends on 1) The power strip device of claim 1, wherein the relay is an optical relay device. ### Claim 4 (depends on 1) The power strip device of claim 1, wherein the relay is a solid-state relay device. ### Claim 5 (depends on 1) The power strip device of claim 1, wherein the relay is a reed switch device. ### Claim 6 (depends on 1) The power strip device of claim 1, wherein the relay has a maximum rating of 25 amperes at 120 volts A.C. ### Claim 7 (depends on 1) The power strip device of claim 1, wherein the switch is a single-pull double-throw (SPDT) switch. ### Claim 8 (depends on 7) The power strip device of claim 7, wherein the SPDT switch has a maximum rating of 25 amperes at 120 volts A.C. ### Claim 9 (depends on 1) The power strip device of claim 1, further comprising a body including a first side and a second side different from the first side, wherein the master power outlet and the plurality of slave power outlets are disposed side by side on the first side; and wherein the power plug is disposed on the second side. ### Claim 10 (depends on 9) The power strip device of claim 9, wherein the body further includes a third side, and wherein the power strip device further comprises a plurality of diode lights disposed on the third side. ### Claim 11 (depends on 10) The power strip device of claim 10, wherein the plurality of diode lights have different colors; and wherein each of the plurality of diode lights are configured to switch between a solid display state and a flashing display state. ### Claim 12 (depends on 9) The power strip device of claim 9, further comprising at least two removable metal brackets disposed on the body. ### Claim 13 (depends on 1) The power strip device of claim 1, wherein, when the first external device connected to the master power outlet draws current less than a predetermined current through the relay from the power plug, the relay causes the first slave power outlet to switch to an off state and the second slave power outlet to switch to an on state. ### Claim 14 (depends on 9) The power strip device of claim 9, wherein the first side is perpendicular to or substantially perpendicular to the second side. ### Claim 15 (depends on 1) The power strip device of claim 1, wherein the first external device is an electrical saw, the second external device is an electric vacuum cleaner, and the third external device is an air compressor. ### Claim 16 (depends on 1) The power strip device of claim 1, wherein the first external device is a microwave oven, the second external device is a buzzer or night-light, and the third external device is a refrigerator. ### Claim 17 (depends on 1) The power strip device of claim 1, wherein the first external device is a television and the third external device is an air conditioner. ### Claim 18 (depends on 1) The power strip device of claim 1, wherein the first external device is a humidifier and the third external device is a heater. ### Claim 19 (depends on 1) The power strip device of claim 1, wherein the first external device is a potable water pump and the third external device is a sump pump. ### Claim 20 (depends on 1) The power strip device of claim 1, wherein the first external device is a sump pump, the second external device is an alarm, and the third external device is a potable water pump.