| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 337142000 |
Fusible element actuated
| 341 |
| 337036000 |
With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis)
| 38 |
| 337123000 |
With longitudinally expansible solid element (e.g., rod, wire strip, etc.)
| 11 |
| 337015000 |
Shunt or short circuit completion devices | 3 |
| 20160035529 | COMBINED SURGE PROTECTION DEVICE WITH INTEGRATED SPARK GAP - The object of the invention is a combined surge protection device with an integrated spark gap and with a fuse connected in series thereto, wherein the spark gap has two main electrodes and one auxiliary ignition electrode, having
| 02-04-2016 |
| 20150340182 | SHORT-CIRCUIT ELEMENT AND A CIRCUIT USING THE SAME - A bypass avoiding only abnormal cells or abnormal electronic components in an electronic appliance having a plurality of battery cells or electronic components is formed to decrease resistance while keeping functionality. | 11-26-2015 |
| 20160005562 | SHORT-CIRCUIT ELEMENT AND A CIRCUIT USING THE SAME - A bypass avoiding only abnormal cells or abnormal electronic components in an electronic appliance having a plurality of battery cells or electronic components is formed to decrease resistance while keeping functionality. An insulating substrate | 01-07-2016 |
| 337114000 |
Expansible or vaporizable fluid-actuated (e.g., mercury vapor) | 3 |
| 20110156855 | FUSING DEVICE AND BATTERY ASSEMBLY COMPRISING THE SAME - A fusing device comprises a core portion, a first terminal, a second terminal, and at least a thermal expanding element provided between the first flange and the second flange with two ends thereof against the first and second flanges respectively, which is configured to break the core portion during thermal expanding. A battery assembly comprises a plurality of battery electrically connected in series, parallel or in series and parallel with the fusing device as described hereinabove. | 06-30-2011 |
| 20090115565 | LIQUID METAL RELAY - A liquid metal relay includes passages formed by bonding a first substrate and a second substrate together, a liquid chamber formed in a middle of the passages, a plurality of electrodes arranged in the liquid chamber, a first gas chamber and a second gas chamber arranged to communicate with both ends of the passages, a gas sealed into the first gas chamber and the second gas chamber, and a heating section for heating the gas, a liquid metal sealed in the liquid chamber, and through electrodes led to an outside of the first substrate from the plurality of electrodes and the heating section. | 05-07-2009 |
| 20120229246 | OVERVOLTAGE PROTECTION ELEMENT - An overvoltage protection element with a housing, an overvoltage-limiting component arranged in the housing, and with two connection elements for electrically connecting the overvoltage protection element to the current or signal path to be protected, wherein, normally, the connection elements are each in electrically conductive contact with a pole of the overvoltage-limiting component. Reliable and effective electrical connection in the normal state and reliable isolation of a defective overvoltage-limiting component are ensured by the fact that a thermally expandable material is arranged within the housing in a way that, in the event of thermal overloading of the overvoltage-limiting component, the position of the overvoltage-limiting component is changed by expansion of the thermally expandable material relative to the position of the connection elements in a way that causes at least one pole of the overvoltage-limiting component to be out of electrically conductive contact with the corresponding connection element. | 09-13-2012 |
| 337021000 |
Conductive fluid devices | 3 |
| 20100039208 | HIGH-FREQUENCY, THIN-FILM LIQUID CRYSTAL THERMAL SWITCHES - In accordance with the invention, there are thermal switches, method of operating thermal switches and methods of forming thermal switches. A thermal switch can include a thin layer of liquid crystal disposed between a first surface of a first insulating substrate and a second surface of a second insulating substrate, wherein the liquid crystals are aligned at one or more of the first surface and the second surface due to surface preparation. | 02-18-2010 |
| 20100201475 | Micro-Fluidic Bubble Fuse - A microfluidic bubble fuse is formed from a hermetically sealed reservoir containing an electrically conductive liquid. The reservoir is interposed between a pair of electrodes such that each electrode is in electrical contact with the fluid within the reservoir, and such that the fluid within the reservoir provides electrical interconnectivity between the electrodes. The reservoir may be implemented on a substrate, in a tube, or in another manner. When the current or voltage across the electrodes increases beyond a threshold, the excess current or voltage will cause a bubble to be created within the fluid to reduce or inhibit the flow of electricity between the electrodes. When the current/voltage is reduced, the bubble will collapse to restore the flow of electricity between the electrodes. | 08-12-2010 |
| 20100259354 | SELF-RECOVERY CURRENT LIMITING FUSE - A liquid matrix of a nonmagnetic material is accommodated within an insulative container of a nonmagnetic material, and a pair of electrodes is disposed within the insulative container such that the electrodes face each other via the liquid matrix. Conductive particles are fluidly dispersed in the liquid matrix. A magnetic field generation section is provided externally of the insulative container so as to generate a magnetic field in a direction orthogonal to a fuse element to be formed between the paired electrodes through chaining of the solid particles. | 10-14-2010 |
| 337035000 |
Plural diverse similar art-type devices in single switch | 3 |
| 20110063068 | THERMALLY ACTUATED RF MICROELECTROMECHANICAL SYSTEMS SWITCH - A radio frequency (RF) micro electromechanical system (MEMS) switch formed on a substrate (e.g., a CMOS substrate). The RF MEMS switch includes a micromechanical member including a flexible switch membrane configured to move between an on state and an off state of the RF MEMS switch. The flexible switch membrane includes a first set of fingers on a sidewall thereof to be vertically coupled with a second set of fingers formed at an output of the RF MEMS switch on the substrate, and an actuation member in operable communication with the micromechanical member and configured to thermally actuate the micromechanical member such that the first set of fingers electrically couple with the second set of fingers upon thermal actuation of the micromechanical member to enable transmission of an RF signal. | 03-17-2011 |
| 20150035641 | Protection Device - The present invention provides a protection device which comprises a resin base 14, a PTC component 24, a bimetal component 26, an arm 28 and an upper plate 46 which are housed in a resin housing wherein the resin base 14 includes a terminal 12 which is integrated with the resin base by insert molding. The protection device further includes a resin cover 16 which is formed by insert molding so as to cover the PTC component 24, the bimetal component 26, the arm 28 and the upper plate 46 which are superposed in this order over the terminal 12 within a space in the resin base 14. The space in the resin base 14 is substantially closed by the upper plate 46, the resin base 14 and the resin cover 16 are integrally bonded to define the resin housing, the terminal 12 and the arm 28 are is electrically connected in series in a normal state, and in an abnormal state where the bimetal component 26 is activated, the terminal 12 and the arm 28 are electrically cut off, while the terminal 12, the PTC component 24, the bimetal component 26, and the arm 28 are electrically connected in series in this order. | 02-05-2015 |
| 20160042903 | AUTOMOTIVE CIRCUIT BREAKER INCLUDING CIRCUIT BREAKER WITH INTEGRATED SECONDARY CURRENT PROTECTION - Featured is a current interruption device including first and second terminal members, each terminal member having at least first and second through apertures and a terminal portion. The first and second through apertures of each terminal member are arranged spaced from each other and in a predetermined pattern. Also included is a plurality of pin structures, one pin structure for each pair of through apertures, where one pin structure is secured in the first through apertures of the respective first and second terminal members and another pin structure is secured in the second through apertures of the respective first and second terminal members. Such securing results in the first and second terminal members being maintained in fixed relation. Such a device is located within a housing so that the terminal portions extend outwardly from a housing end surface. | 02-11-2016 |
| 337028000 |
Space discharge device (gaps, lightning arrester, etc.) | 2 |
| 20170236674 | FUSE FOR A DEVICE TO BE PROTECTED | 08-17-2017 |
| 20100328014 | Electric circuit breaker apparatus for vehicle - An electric circuit breaker apparatus is used in a vehicle including an electric circuit having a converter and a storage battery. The electric circuit breaker apparatus interrupts power supply from the storage battery to the converter when a collision of the vehicle is detected. The electric circuit breaker apparatus includes a power supply circuit breaker driven by a low explosive type actuator, which is actuated when a collision of the vehicle is detected. Actuation of the power supply circuit breaker interrupts a power supply path connecting a positive terminal of the storage battery to the converter and grounds a portion of the power supply path closer to the converter than the interrupted portion. | 12-30-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20080197964 | MEMS ACTUATORS AND SWITCHES - Micro-electromechanical systems (MEMS) actuators and switches exhibiting geometries and configurations providing superior operating characteristics and longer lifetimes. | 08-21-2008 |
| 20080315983 | Safety Device For Preventing Propagation in Fracture of Ceramic Element - The present invention relates to a safety device for preventing propagation when a ceramic element is failed. An angle is formed such that elastic terminals contacted at both faces of the ceramic element do not face each other and an elastic terminal of one lateral face of the ceramic element is formed without one leg so as not to be contacted with the ceramic element, and therefore when an unsustainable force is applied to the ceramic element by an excessive thermal stress or an excessive current caused by an external abnormal power supply is applied to the ceramic element, the ceramic element performs an immediate failure and thus a rapid cut-off capability of circuit. The upper case is provided with a receiving space for accommodating a ceramic element such that the ceramic element remains upright inside of the receiving space, or the ceramic element is mounted inside of an insulator such that the insulator supports an off-set force by a connection force of the elastic terminal to allow the ceramic element to remain upright. A wedge is formed integrally with the upper case so as to be contacted with the elastic terminal mounted at both sides of the upper case, which supports the elastic terminal, thereby supporting the elastic terminal. Even after the operation of the safety device, the scattered ceramic element is captured by the wall face of the receiving space inside of the upper case, thereby providing a capability of stable circuit cut-off. A case protrusion is formed at both lower portions of the upper case to which the ceramic element is mounted, thereby providing a gradient to allow the ceramic element to remain upright. The tab terminal and the elastic terminal are connected by means of a rivet or welding, and the elastic terminal is provided with an embossing to reinforce the elasticity of the elastic terminal material, thereby enabling to be replaced by a thinner elastic terminal and thus reduce the manufacturing cost. | 12-25-2008 |
| 20100013591 | Protection Device - It is provided a new protection device with a large current capacity, which can sense a relatively low abnormal temperature, and further has a simple construction and is not large in size. The protection device comprises ( | 01-21-2010 |
| 20100102918 | ELECTROMECHANICAL SWITHCING DEVICE FOR PROTECTING ELECTRICAL WIRES AND/OR CONSUMERS AND USE OF A THERMAL COUPLING IN AN ELECTROMECHANICAL SWITCHING DEVICE - An electromechanical switching device is disclosed for protecting electrical wires and/or consumers. In at least one embodiment, the device includes at least one thermal triggering element and at least one switching device-internal heat source. For the at least one thermal triggering element, the electromechanical switching device includes a thermal coupling of at least one of the switching device-internal heat sources. At least one embodiment of the invention also relates to the use of a thermal coupling. | 04-29-2010 |
| 20110205011 | RAPID DISCONNECT DEVICE - The invention relates to a rapid disconnect device for surge arrestors, in particular plate-type or flat varistors, comprising at least one element that is maintained under a mechanical stress, and a disconnection point for disconnecting the surge arrestor from the respective power grid upon thermal overload, wherein the disconnection point comprises contacts, the positions of which vary relative to one another, wherein one of said contacts is designed to be fixed. According to the invention, the contacts of varying positions relative to one another are electrically connected without the use of solder in such a way that incident current forces act primarily in the contact force direction and such that the moving contacts of the positionally-variable contacts of a lost element located at the surge arrestor and thermally detachable therefrom can be moved from a closed position to the disconnected position. | 08-25-2011 |
| 20120068807 | ELECTRIC RECEPTACLE APPARATUS WITH REPLACEABLE PROTECTION MODULE - A thermal protection module includes a surge absorber, a switch unit, and a pyrocondensation belt connected to the surge absorber and the switch unit. The switch includes a casing, at least one conductive pin, at least one conductive portion, and a moving part. The conductive portion is disposed on the moving part. The moving part is stuck in the casing movably. The conductive pins are stuck in the casing. The pyrocondensation belt is configured to shrink according to the heat conduction from the surge absorber, so as to change the position of the moving part. The conductive portion is in contact with or separated from the conductive pin according to the position of the moving part. | 03-22-2012 |
| 20140028434 | SELF-RECOVERY CIRCUIT BREAKER - A self-recovery circuit breaker has a base, a holder, a self-recovery device and a cover. The base has two conductive pads and a top space with a top opening. The holder is mounted in the top space of the base. The self-recovery device is mounted in the holder and has two pins electrically and respectively connected to the conductive pads. The cover is mounted in the top opening of the base. The self-recovery device interrupts an electric connection between the conductive pads due to abnormally high current and high temperature. When the self-recovery device cools down, the self-recovery device will restore the electric connection between the conductive pads automatically. | 01-30-2014 |
| 20140035715 | Heat Float Switch - A heat float switch includes a first member and a second member. The first member includes a base member and a carbon nanotube layer formed on a surface of the base member. The heat float switch switches states between a connected state in which the carbon nanotube layer of the first member is in contact with the second member and an unconnected state in which the carbon nanotube layer of the first member is not in contact with the second member. | 02-06-2014 |
| 20140077921 | OVERLOAD PROTECTION LACKING AUTOMATIC RESET FOR USE WITH ACTIVE MATERIAL ACTUATION - An actuation assembly adapted to protect against overload conditions, includes an active material actuator and an active material overload protection device either with or without a manual reset. | 03-20-2014 |
| 20220139657 | POWER SWITCH WITH INDEPENDENT LIGHT-EMITTING CHAMBER - A power switch with an independent light-emitting chamber includes a housing, a press-key, a power assembly, at least one light-emitting unit, and a circuit board. The housing is provided therein with a partition wall that divides the interior of the housing into a first receiving space and a second receiving space. The press-key and the power assembly can be disposed in the first receiving space. The press-key can bring the power assembly into a power-off state or a power-on state. The light-emitting unit can be disposed in the second receiving space and thereby turn the second receiving space into an independent light-emitting chamber. The circuit board can be disposed in the housing and electrically connected to the power assembly and the light-emitting unit. The power switch is enhanced in safety as the partition wall keeps the light-emitting unit and the power assembly from each other and hence from short-circuiting. | 05-05-2022 |
