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Patent Searching and Data


Matches 501 - 550 out of 4,731

Document Document Title
WO/1990/008947A1
An apparatus for detecting an abnormal temperature of a regenerative resistor which dissipates the regenerative energy of an electric motor. This apparatus has a heat conductive member (11) provided in contact with the surface of a regen...  
WO/1990/004870A1
The invention confers protection against electrocution in the bath on electric heating appliances such as hair dryers and fan heaters, in particular in connection with a suitable circuit breaker. The heating appliance is switched off by ...  
WO/1989/011747A1
An electrical safety apparatus arranged to be connected between an electrical power source and a load to provide protection against electric shock due to, for example, the insertion of probes or needles into a potentially live socket by ...  
WO/1989/011174A1
Facade heating of a building is provided by mounting a polymeric self-regulating heater (12) within the framework surrounding the glass panels. An electronic earth leakage current breaker (2) is used with the heater (12) and can be subje...  
WO/1989/008300A1
An apparatus for supervising objects, such as hot plates and electrical stoves, with regard to overheating comprises at least one detector (9) for detecting conditions of overheating and a device (11) controlled by the detector for deliv...  
WO/1989/006873A1
A circuit is provided to protect a liquid-filled electrical power transformer (10) from damage due to an internal fault which causes a rapid rise in pressure. A pressure transmitter assembly (12) converts the internal pressure of the tra...  
WO/1989/005050A1
A protective device for electrical mains appliances, in particular hand appliances connected by a cable (8) to a connecting plug or similar, comprises in the region of the connecting plug a protective switch (16) which can be actuated by...  
WO/1989/001718A1
A protective switching device for electrical appliances, in particular household appliances, has at least two current-carrying leads (L1', L2') and a spring-loaded switch (6) which can be switched off by a remote-controlled trip element ...  
WO/1988/010019A1
The electrical circuit breaker serves as a protective measure, in particular against electrocution in the bath in the event of a hairdryer falling into a bathtub filled with water. The circuit breaker operates very simply on alternating ...  
WO/1988/006813A1
An immersion detector circuit interrupter (38) having a sensor (22) located around the electrical components of an appliance (10) and switches (44) for interrupting the delivery of alternating current to the appliance (10) whenever the s...  
WO/1988/005974A1
In order to provide equipment with fail-safe characteristics in the event of accidents or failures that could disable the protective device of electrically driven, in particular portable apparatuses with a movable mains connection line a...  
WO/1988/004488A1
A method and system for electronically simulating, indicating and controlling the temperature of liquid cooled multi-phase electric power transformers. The temperatures of transformer windings are electronically computed from the actual ...  
WO/1988/000405A1
The system described operates in a very simple manner during a.c. operation and is particularly suited for providing protection against danger. A bistable relay (1, 5, 6) is used as the cut-off device, said relay drawing the power requir...  
WO1987001902A3  
WO/1987/002835A1
A device for protecting against excess current comprises a positive temperature coefficient (PTC) device and a tension spring connected by a solder joint adjacent the PTC device. Electrical current passes in series through the spring and...  
WO/1987/001902A2
A protective circuit for electrical apparatus has an insulated safety line (4) extending from the relevant electrical apparatus (6) to the protective circuit (2). The safety line (4) has inside the apparatus (6) at least one non-insulate...  
WO/1986/006920A1
An electrical heating pad, in particular a mattress to be laid under a patient during surgery, comprising a number of partially overlapping resistor elements (11-18). The foil elements cover different regions of the pad and are positione...  
WO/1986/002500A1
A method and a device for detection of an electric load (9) for the purpose of allowance of its connection to a power voltage from an electric voltage source over electric conductor means (7, 8). They are normally kept free from power vo...  
WO/1986/001299A1
Circuit for continuously controlling the grounding resistance of electric apparatuses of which the electrically conducting components susceptible of being touched, such as the casing, are connected by a grounding wire to a ground potenti...  
WO/1986/000179A1
Overheating alarm for surveillance of heat emitting objects, preferably intended for surveillance of hotplates and electric cookers. Emitted heat radiation from a monitored object is detected by an IR-detector, located at a distance from...  
WO/1985/002724A1
New device for protecting human life and property against electrical shock and more specifically to a shock hazard prevention system for disconnecting an electrical load from an electrical source when a shock hazard condition exists with...  
WO/1985/002744A1
In a two-way cable television (CATV) system, multiple subscriber address codes are provided during designated vertical blanking interval (VBI) lines of the video signal transmitted from the CATV headend to a plurality of system subscribe...  
WO/1983/003160A1
To protect the operator of an electrically supplied apparatus in a damp room against an electric discharge, there is provided a protection device comprised of a probe formed by two conductors (44, 45; 46, 47) which cannot come in contact...  
WO/1983/001138A1
A system for monitoring abnormally high temperature along the length of a heating conductor (H) includes a tracing cable (T) containing a heating conductor (H) and a monitoring conductor (M). The monitoring conductor (M) is connected to ...  
WO/1979/001033A1
Protection arrangement against a solicitation by suppression of the encapsulation (6), in switching devices encapsulated and insulated by pressure gas, distributed within individual sealed compartments. The arc is short-circuited for ext...  
WO/1979/000769A1
A circuit breaker (1) having an electronic fault sensing and trip initiating unit (2) which provides increase versatility and ability to coordinate the circuit breaker with other interrupting and protective devices in a wide variety of e...  
JP6605058B2  
JP6605875B2  
JP2019193363A
[Subject] When a collision of vehicles is predicted, provide an accumulating electricity device for vehicles which can change into a safe state an accumulating electricity device carried in vehicles before a collision. [Means for Solutio...  
JP2019193541A
[Subject] Aim at improvement in reliability about detection of an unusual rise in heat. [Means for Solution] Electric socket 1 is provided with energized part A1, temperature detecting element 5, and control part 7. Energized part A1 con...  
JP6598119B2  
JP2019187044A
[Subject] If admiration Seismic device starts delay interception operation in response to the occurrence of an earthquake more than predetermined seismic intensity, time until the electric current is cut off will be reported to a residen...  
JP6594586B2  
JP6588229B2  
JPWO2018074325A1
A main circuit storage battery box in which the present invention was divided into a plurality of equipment compartments, and a plurality of storage battery units respectively stored in a plurality of equipment compartments, It has a plu...  
JP2019165577A
[Subject] An electric load controller which can aim at coexistence with narrow-izing of an electric wire and fall control of durable performance of the electric wire with simple composition is provided. [Means for Solution] This device i...  
JP6580363B2  
JP6581799B2  
JP2019161973A
[Subject] A grade of degradation of a cooling unit is judged gradually and an uninterruptible power source system which can operate according to a grade of degradation, a degradation judging device for uninterruptible power sources, a de...  
JP2019161963A
[Subject] An uninterruptible power source system which can judge degradation of a cooling unit with more sufficient accuracy, a degradation judging device for uninterruptible power sources, a degradation judgment program for uninterrupti...  
JP2019161969A
[Subject] An uninterruptible power source system which can judge a grade of degradation of a cooling unit gradually, a degradation judging device for uninterruptible power sources, a degradation judgment program for uninterruptible power...  
JP6575012B2  
JP2019149887A
[Subject] In emergencies in case of a fire etc., a protection circuit which can intercept a current course of a solar cell irreversibly with a signal, and a solar energy power generation system are provided. [Means for Solution] Having p...  
JP6569989B2  
JP6569693B2  
JP2019523980A
The present invention relates to an electronic device (1) for incoming current restrictions, and is with at least one NTC element (2), Having at least two conductive connecting members (3), the NTC element (2) concerned is, It flows elec...  
JP2019144058A
To provide an insertion type connection unit having a function for making a circuit breaker operate even if a normally-operable wiring state is not secured, in a receptacle to which the insertion type connection unit is connected.An inse...  
JP2019144272A
To provide an insertion type connection unit having a function in which an appropriate amount of a leakage current is flowed in accordance with a level of a grounding resistance value over time to check whether a grounding resistance is ...  
JP2019146461A
To provide a semiconductor device that can perform excessive temperature detection and protection operation more surely even if temperature rise amounts differ depending on an environment and radiation performance and the like of a syste...  
JP6560384B2  

Matches 501 - 550 out of 4,731