Class / Patent application number | Description | Number of patent applications / Date published |
361124000 | Thermal (e.g., fusible, bimetallic) | 8 |
20100265627 | Surge Arrester with Thermal Overload Protection - A surge arrester is described which includes at least two electrodes. At least one of the electrodes includes a ventilation channel. The internal area of the surge arrester is connected to an external area of the surge arrester via the ventilation channel, wherein the ventilation channel is closed by means of a fusible element. The fusible element is preferably arranged at that end of the ventilation channel which faces the external area of the surge element. | 10-21-2010 |
20110299211 | Surge Arrester Having a Short-Circuit Device - A surge arrester includes a short-circuit device. The short-circuit device includes at least one first base element. The first base element is rigidly connected in an electrically conducting and mechanical manner to a first electrode of the surge arrester. The short-circuit device also includes at least one spring arm arranged on the base element. The free end of the spring arm has a distance to the base element, and the spring arm extends over at least two adjoining electrodes of the surge arrester. | 12-08-2011 |
20120057265 | ZINC-OXIDE SURGE ARRESTER FOR HIGH-TEMPERATURE OPERATION - A ZnO surge arrester for high-temperature operation is characterized in that a grain boundary layer between ZnO grains thereof contains a BaTiO | 03-08-2012 |
20120063051 | PROTECTION CIRCUIT - A protection circuit includes a surge absorber, a switch device electrically connected to the surge absorber and having a first conductor and a second conductor, and a heat-shrinkable device disposed on an outer periphery of the surge absorber and shrinking in accordance with temperature of the surge absorber. The first conductor has a first connecting portion and a second connecting portion. The surge absorber is connected to the first connecting portion. When the switch device is in an initial state, the second connecting portion electrically contacts the second conductor, and when the heat-shrinkable device shrinks to separate the second connecting portion from the second conductor, the switch device is switched off. | 03-15-2012 |
20130265687 | CIRCUIT PROTECTION DEVICE - A voltage suppression device for suppressing voltage surges in an electrical circuit having a voltage sensitive assembly comprised of a plurality of tubular sections within a tubular casing. | 10-10-2013 |
20150022932 | FAULT-TOLERANT SELF-INDICATING SURGE PROTECTION SYSTEM FOR AIRCRAFT - A fault-tolerant self-indicating surge protector system and methods are presented. An unwanted surge of electrical energy induced by a lightning strike is directed away from a sensitive electrical or electronic component, and the unwanted surge of electrical energy is directed through series connected pairs of varistors. A voltage signal is extracted from a center tap point between the series connected pairs of the varistors, and the voltage signal is monitored for a health of the varistors. A high impedance in a varistor among the varistors is provided for a low voltage across the varistor, and a low impedance in the varistor is provided and the unwanted surge of electrical energy is diverted through the varistor in response to a high voltage across the varistor. | 01-22-2015 |
20150103462 | OVERVOLTAGE PROTECTION DEVICE - A surge protection device having a housing, two connections for connection to a current path to be protected, and at least a first discharge conductor in the housing. In a normal state of the device, the first connection is electrically conductively connected to the first connection region of the discharge conductor, and the second connection is connected to the second connection region by at least one component. A metal safety element, which has two contact regions and a connecting region which connects the contact regions to one another, is arranged within the housing. The first contact region is electrically conductively connected to the second connection region and the second contact region is electrically conductively connected to the component in the normal state. The connecting region is a fuse by which brief pulse currents can be transmitted by the connecting region, whereas mains-frequency short-circuit currents overload the connecting region destroying it. | 04-16-2015 |
20160134104 | SURGE SUPPRESSION DEVICE WITH HIGH STRUCTURAL STABILITY - A surge suppression device comprising a voltage sensitive element, heat sensitive materials, terminals, a blocking element and a non-conductive barrier is disclosed. One of the terminals comprises an arm portion, a contact portion and an extension portion extended from the contact portion. The blocking element has a part engaging with the extension portion and another part contacting with the barrier and separating the barrier from the arm portion of the terminal. The device has higher structural stability and sensitivity and is only failed in the event that the voltage sensitive element is failed due to aging or grid fault. | 05-12-2016 |