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6549387 |
Power breaker
A reset knob 20 is mounted to a tip end of a shaft 16 . A torsion spring 21 and a returning motion-preventing lock 22 are bent and accommodated in the reset knob 20 . The returning...
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6542846 |
Thermal management system for a portable ultrasound imaging device
A thermal management system for a portable battery powered electronic device, and particularly, a portable battery powered ultrasound device, which controls the temperature of the device such that...
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6538872 |
Electrostatic chuck having heater and method
An electrostatic chuck 55 for holding a substrate 30 comprises an electrostatic member 100 made from a dielectric 115 covering an electrode 105 that is chargeable to electrostatically...
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6538552 |
Thermostat, in particular for electric household appliances
A thermostat, in particular for electric household appliances, including a mechanical switch and an analog regulating circuit having a variable-ratio reference divider. The reference divider...
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6522514 |
Photocoupler and connecting system using the same
A photocoupler ( 100 ) includes a light emitting unit ( 120 ) which emits an input light (P); a first path ( 114 ) connecting a first terminal ( 110 ) and a second terminal ( 112 ); a switching...
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6504697 |
Arrangement and method for measuring a temperature
An arrangement for overload protection of a switch to which a load circuit and a control circuit are connected, wherein: the control circuit includes at least one logic circuit, a gate drive...
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6501634 |
High voltage transient voltage surge suppression fuse link system
A high voltage transient surge suppression system which provides an improved fusing to greatly reduce or eliminate the chance of secondary combustion during an excess power situation. The invention...
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6498770 |
Timer circuit utilizing thermal effect
A timer circuit that utilizes the thermal runaway effect, and includes a switch, a resistor, a transistor and a protective device. The temperature of the transistor rises due to a phenomenon known...
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6496346 |
Automatic system shutdown following processor thermal condition
Power to a processor-based system is automatically disabled following a thermal condition detected by the processor. A predetermined thermal condition identified by the processor is coupled to a...
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6490146 |
Electrostatic chuck bonded to base with a bond layer and method
An electrostatic chuck for holding a substrate has an electrostatic member having a dielectric covering an electrode that is chargeable to electrostatically hold the substrate. The bond layer has a...
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6477025 |
Surge protection device with thermal protection, current limiting, and failure indication
The disclosure describes a surge protection device that makes use of metal oxide varistors (MOVs) to limit the magnitude of electrical surges in single phase or multi-phase power distribution...
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6466424 |
Circuit protective device with temperature sensing
A temperature sensor for use in a circuit breaker is disclosed. The temperature sensor is included in the circuit breaker and detects temperature of a target within the current path of the breaker....
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6462925 |
Excess current interrupting structure
An excess current interrupting structure comprising a conductive wire rod which generates heat by an excess current connected between a pair of electric conductors, a circumference of the...
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6462926 |
Low loss diode-oring circuit
A low loss diode ORing circuit has a feed input connected in series with a diode/transistor parallel network and the ouput. Heat is generated by the transistor when the transistor is turned on. A...
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6456476 |
Circuit protection relay having bimetal wiper
An electrical protection device for protecting an operating circuit from overcurrent and having relay contacts in series between an electrical power supply and an electrical power load and having a...
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6456470 |
Starting device for compressors incorporating a start or run capacitor
A starting device for compressors has a PTC resistor and a protection device, both of which are inserted in a casing fitted with couplings for connection to the standard coupling pins present on...
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6445563 |
Power circuit breaker using temperature-sensive fuse
A power circuit breaker has a housing, a fuse element placed in the housing, and a temperature sensitive fuse attached to the fuse element. The fuse element has tab terminals extending from both...
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6439905 |
Electrical connector with a loop and helical turn
An electronic device comprising at least a first part and a second part, the first part and second part being movable between a first closed position and a second open position. The device has a...
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6437959 |
Electrical and/or electronic system integrated with an isolating device and method that isolates a functional module
The invention relates to an integrated electrical and/or electronic system having at least one functional module connected to a supply voltage and connected via a pin external to the functional...
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6437960 |
Current limiting circuit breaker with positive temperature coefficient resistivity (PTC) element and insertable insulating object
The present invention provides a current limiting circuit breaker having a plurality of current responsive devices for opening a pair of contacts upon short circuit conditions. One such device is a...
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6430019 |
Circuit protection device
A voltage suppression device for suppressing voltage surges in an electrical circuit, comprised of a voltage sensitive element having a predetermined voltage rating, the voltage sensitive element...
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6426867 |
Protection device having tapered ribs and method of assembling a battery with a protection device and an electrical component
A protection device for an electrical component that has a protective housing and a terminal cap. The protective housing has a base with a contact hole therethrough for accommodating an electrical...
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6424057 |
Uninterruptible power supply (UPS) system with primary air cooling
An uninterruptible power supply (UPS) system ( 3 ) is to be inserted between a alternating current (AC) power supply ( 4 ), interruptions of which are to be compensated for, and at least one load (...
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6421216 |
Resetable overcurrent protection arrangement
An overcurrent protection system giving rapid response to relatively small overcurrents has a sensor element and an interruption element in series between a power source and a load. The sensor...
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6411484 |
VLSI circuit with temperature monitoring
The VLSI circuit has one or more integrated semiconductor chips disposed in a housing and connected via connecting lines to contact terminals that are accessible from outside the housing. A...
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6411487 |
Coaxial surge protector having thermal fail-safe shunt
A coaxial surge protector includes a housing in which is situated a transmission line in the form of a two-sided printed circuit board. The surge protector includes input and output signal...
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6404610 |
Device for detecting and method for conditioning temperature inside notebook computer
A temperature sensing system for monitoring and controlling temperatures of various peripheral devices inside a notebook type of computer. The temperature sensing system uses thermistor as...
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6404609 |
Circuit that reduces the numbers of components needed to transmit data from intrinsically safe to non-intrinsically safe circuits using opto-couplers
The described circuit is an intrinsically safe circuit configured for supplying intrinsically safe power from a power supply in a hazardous environment. The intrinsically safe circuit reduces a...
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6400545 |
Fuseless dc-dc converter
A fuseless DC-DC converter is provided to protect a circuit from overcurrent without involvement of a protective fuse. This is accomplished by providing a load circuit in the converter that...
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6396675 |
Computer power supply device having dual adjustment temperature controlled air flow device
A high-efficiency, automatic detecting, and self-adjustable temperature controlled air flow device, more particularly a computer power supply having dual adjustment temperature controlled air flow...
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6392551 |
Synthetic fiber cable with temperature sensor
A synthetic fiber cable, preferably of polyamide material, consists of a bundle of load-bearing synthetic material fibers and at least one conductive temperature sensor element extending a length...
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6381111 |
Safety device for a number of electrical loads
A safety device for a number of electrical loads that are connected to a supply line between a high-side path and a low-side path. The loads are activatable individually by way of drivers provided...
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6377432 |
Fuse and battery pack containing the fuse
A fuse is melted and cut off when an overcurrent flows through the fuse. The fuse has a different thermal expansion coefficient metal laminate obtained by laminating a plurality of different...
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6377429 |
Protective circuit for battery
The invention concerns a protective circuit ( 10 ) for protecting a rechargeable battery ( 1 ) against currents of too high intensity. The protective circuit ( 10 ) includes detection and...
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6373671 |
Apparatus with an over-current shutdown means and an over-temperature shutdown means
A control apparatus for controlling multiple power loads in a vehicle includes a circuit for detecting a current abnormality of a power element and a circuit for monitoring a temperature...
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6368734 |
NTC thermistors and NTC thermistor chips
An NTC thermistor has an electrically insulating substrate, a temperature-sensitive film on a surface of the substrate containing oxide of rare earth elements such as LaCoO 3 as its principal...
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6356425 |
Timer-thermal-overload shutoff apparatus
A timer-thermal shutoff apparatus can control and protect an electrical appliance. The timer-thermal shutoff apparatus comprises a housing; male connector extending from the housing; female...
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6351360 |
Apparatus for selective shutdown of devices of an integrated circuit in response to thermal fault detection
An integrated circuit including one or more power devices, and circuitry which reliably (and independently) shuts down each power device that is detected to be in an undesired operating condition...
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6351361 |
Overcurrent protection device
An electrical current protection device capable of highly safe and rapid shutoff or suppression of electric current is disclosed. In addition to internal electrical current protection capabilities,...
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6349023 |
Power control system for illumination array
A power control system, which serves to protect a dissipative/resistive load from exceeding a predetermined temperature limit. The power control system accurately models the temperature of the load...
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6342997 |
High sensitivity diode temperature sensor with adjustable current source
A temperature control circuit provides for optical isolation, dry start protection, dedicated load control, manual reset, and relay control in hot water heaters and related applications. The...
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6340878 |
Silicon equivalent PTC circuit
This invention is a series current regulator with an on-silicon temperature sensing means which forms an improved over current battery protection device. The invention regulates current in a pass...
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6339310 |
Motor driving control device
A motor driving control device that achieves as high as possible phase coil energization level while preventing thermal destruction of the power switching element by using precise thermal detection...
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6335853 |
Protective device for non-contact feeder system
A thermosensitive wire ( 15 ), including a pair of phosphor bronze round wires which cause a short-circuit when the ambient temperature exceeds a predetermined temperature, is laid along an...
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6324043 |
Residual current detector with fail safe lockout device
This invention provides a residual current detector comprising a trip circuit; a magnetic lock assembly including a solenoid that operates in response to a signal from the trip circuit, causing...
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6320734 |
Communication device
A communication device includes a number of transmitter/receiver/modem blocks installed in vertical positions. Each of the transmitter/receiver/modem blocks includes a supporting board having a...
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6313723 |
Remote controllable circuit breakers with positive temperature coefficient resistivity (PTC) elements
A circuit breaker and method for interrupting the flow of electric current in a line having a load and a source including a first switch connected in series with the line and a first actuating...
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6301090 |
Control system using an electric motor
The electric motor drive includes an electric motor (10); an end stage (12) for triggering the electric motor; a trigger circuit (18) for pulse-width-modulated triggering of the end stage, which is...
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6282072 |
Electrical devices having a polymer PTC array
The present invention is an electrical circuit protection device having a PTC element with a first common electrode affixed to a first surface of the PTC element and at least two second electrodes...
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6265880 |
Apparatus and method for detecting conduit chafing
Apparatus and method to identify chafing of a conduit, thereby reducing the failure of any system which would be damaged or whose function would be impaired by abrasion of the conduit. Such a...
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