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Class Information
Number: 340/635
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Condition of electrical apparatus
Description: Subject matter wherein the monitored condition is an electrical property of a specific electrical device or circuit.










Sub-classes under this class:

Class Number Class Name Patents
340/636.1 Battery 557
340/652 Breaking of circuit continuity 377
340/654 Circuit energization 167
340/649 Condition of intentional grounding circuit 148
340/653 Electronic circuit or component 258
340/638 Fuse or circuit breaker 260
340/640 Heater element 55
340/647 Insulation 66
340/648 Motor 215
340/645 Rectifier 55
340/641 Signalling light element 194
340/644 Switch or relay 314
340/646 Transformer 76
340/650 Undesired circuit ground or short 301
340/637 Watt-hour meter 50


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Patent Number Title Of Patent Date Issued
8710995 Lighting apparatus Apr. 29, 2014
8692679 Tower elevator alarm system Apr. 8, 2014
8686670 Method and apparatus for calibrating and testing brake holding torque Apr. 1, 2014
8682612 Trend analysis methods and system for incipient fault prediction Mar. 25, 2014
8682600 Pipeline leak detection and location system through pressure and cathodic protection soil Mar. 25, 2014
8674843 System and method for detecting and localizing abnormal conditions and electrical faults in an electrical grid Mar. 18, 2014
8669879 Medical device readiness alert including power conservation Mar. 11, 2014
8666560 Power control system and method Mar. 4, 2014
8659440 Meter disconnection detection system and method Feb. 25, 2014
8659441 Method and apparatus of sensing and indicating an open current transformer secondary Feb. 25, 2014
8653980 Alarm for detecting radiation and/or air pollutants Feb. 18, 2014
8643501 Metering apparatus Feb. 4, 2014
8633824 Charger Jan. 21, 2014
8624706 Control circuit for indicator light Jan. 7, 2014
8624748 Floating roof monitoring system Jan. 7, 2014
8624749 Bathing system controller having abnormal operational condition identification capabilities Jan. 7, 2014
8619412 Power distribution unit and methods of making and use including modular construction and assemblies Dec. 31, 2013
8618944 Coaxial cable connector parameter monitoring system Dec. 31, 2013
8618943 Brush holder assembly monitoring apparatus, assembly, system and method Dec. 31, 2013
8610589 Noise suppression techniques in high precision long-term frequency/timing measurements Dec. 17, 2013
8610601 Kitchen hood assembly with fire suppression control system and built-in redundancy Dec. 17, 2013
8604936 Coaxial cable connector, system and method of use thereof Dec. 10, 2013
8604933 System and method for safe handling of information handling resources by monitoring thermal properties of resources Dec. 10, 2013
8604938 User interface cable clamp-on device Dec. 10, 2013
8599031 Systems and methods for stray voltage detection Dec. 3, 2013
8593291 Component RFID tag with non-volatile display of component use including the use of energy harvesting Nov. 26, 2013
8593292 Household electrical appliance Nov. 26, 2013
8595639 Ventilator-initiated prompt regarding detection of fluctuations in resistance Nov. 26, 2013
8587445 Monitoring electrical assets for fault and efficiency correction Nov. 19, 2013
8581596 Current leakage detector of construction machine Nov. 12, 2013
8581723 Fault detection using phase comparison Nov. 12, 2013
8581735 Warning and preparatory system for a portable device Nov. 12, 2013
8576086 Limit signal indicator and method for operating a limit signal indicator Nov. 5, 2013
8570179 Integrated condition or actuation monitoring and control component for switches, circuit breakers, panel boards, and other items for electrical control and circuit protection Oct. 29, 2013
8570170 Electronic device and method for noise alerting Oct. 29, 2013
8570178 Coaxial cable connector with internal floating ground circuitry and method of use thereof Oct. 29, 2013
8570180 Rack server system Oct. 29, 2013
8565079 Home appliance and home appliance system Oct. 22, 2013
8558708 Supplemental alert generation device with speaker enclosure assembly Oct. 15, 2013
8552875 Efficient and safe door locking control in power-off and power-on conditions Oct. 8, 2013
8552859 Self adapting alert device Oct. 8, 2013
8552876 Intelligent wire connectors Oct. 8, 2013
8542125 System for verifying the integrity of an electrical union Sep. 24, 2013
8537024 Sanitary rotary valve Sep. 17, 2013
8537023 Method and apparatus pertaining to automatic electrical-fault detection Sep. 17, 2013
8537022 Method and device for configurable ground monitoring of a workbench Sep. 17, 2013
8537021 Apparatus, method, and system for improved control and monitoring of electrical systems Sep. 17, 2013
8531305 Method of measuring electrical resistance of joints Sep. 10, 2013
8525691 Electric equipment with digital interface and method for controlling the same Sep. 3, 2013
8519678 Solar battery charging controller Aug. 27, 2013

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