| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 337306000 | Expansible or vaporizable fluid actuated | 9 |
| 20110199177 | MULTI-STABLE ACTUATOR - A thermal actuator ( | 08-18-2011 |
| 20120306610 | Circuit breaker closing/ opening actuating mechanism and driving device thereof - A circuit breaker closing/opening actuating mechanism and a driving device thereof, the driving device includes: an expansion body ( | 12-06-2012 |
| 20130099889 | THERMAL FUSE SYSTEM FOR AN ELECTRICAL DEVICE - The invention concerns a system for thermal safeguarding of an electric device comprising several monitored components and/or monitoring points. According to the invention, the system comprises at least one thermosensitive element and one actuator coordinated with this thermosensitive element, wherein the thermosensitive element is configured as a sleeve or tube, to which the monitored components or monitoring points are thermally coupled, such that it undergoes a change in length or volume above a threshold temperature, and is connected to the actuator such that the actuator triggers an action in dependence on the change in length or volume of the thermosensitive element. | 04-25-2013 |
| 337312000 | With manual or other mechanical contact control means | 2 |
| 20090302990 | THERMALLY ACTIVATED ELECTRICAL INTERRUPT SWITCH - A thermally activated electrical interrupt device incorporates a thermally activated portion engaging with an electrical interrupt portion. The thermally activated material expands when heated, causing an interrupt control rod to open an electrical contact. When the interrupt device is placed into an interrupt state, a reset mechanism maintains the interrupt control rod in the interrupt state until specifically reset. An actuating shaft is in operational communication with at least one electrical contact. The actuating shaft is maintained in a thermal monitoring position until an interrupt control rod is moved via a thermally expanding material and engages with the actuating shaft, releasing it from the thermal monitoring position. The actuating shaft is projected via a biasing member to cause a change in state of the electrical contact. The actuating shaft remains in the interrupt state until the user resets the switch. | 12-10-2009 |
| 337314000 | Reciprocating or sliding motion | 1 |
| 337315000 | Piston or plunger | 1 |
| 20090302991 | Thermally Activated Electrical Interrupt Switch - A thermally activated electrical interrupt device incorporates a thermally activated portion ( | 12-10-2009 |
| 337324000 | With auxiliary heater | 1 |
| 20090040007 | Miniaturized High Conductivity Thermal/Electrical Switch - The present invention is a thermally controlled switch with high thermal or electrical conductivity. Microsystems Technology manufacturing methods are fundamental for the switch that comprises a sealed cavity formed within a stack of bonded wafers, wherein the upper wafer comprises a membrane assembly adapted to be arranged with a gap to a receiving structure. A thermal actuator material, which preferably is a phase change material, e.g. paraffin, adapted to change volume with temperature, fills a portion of the cavity. A conductor material, providing a high conductivity transfer structure between the lower wafer and the rigid part of the membrane assembly, fills another portion of the cavity. Upon a temperature change, the membrane assembly is displaced and bridges the gap, providing a high conductivity contact from the lower wafer to the receiving structure. | 02-12-2009 |
| 337326000 | Fluid or fluid pressure generating means | 3 |
| 20100315193 | THERMALLY RESPONSIVE SWITCH - A thermally responsive switch includes an airtight container including a metal housing and a header plate, conductive terminal pins airtightly fixed to the header plate, a fixed contact fixed to the conductive terminal pin, a thermally responsive plate one end of which is conductively connected to and fixed to the inner surface of the airtight container and the bending direction of which is reversed at a predetermined temperature, and a movable contact fixed to the other end of the thermally responsive plate. In the thermally responsive switch, the movable contact and the fixed contact are composed of a silver tin oxide based contact and gas containing 50% or more and 95% or less of helium is encapsulated in the airtight container in such a manner that gas pressure is equal to or more than 0.3 atmospheres and equal to or less than 0.8 atmospheres at ordinary temperature. | 12-16-2010 |
| 20110285497 | THERMAL FUSE - The thermal fuse according to the present invention has its conducting element made of red brass and, additionally, a thin layer of silver is coated over the conducting element. As such, the conducting element has substantially identical thermal coefficient as that of a red-brass casing, and the robustness against heat of the conducting element's petals is compatible with that of the casing. In this way, the conducting element will not be stuck with the casing when an overloading current emerges. The thermal fuse therefore is significantly more reliable than a conventional thermal fuse. | 11-24-2011 |
| 20150364281 | 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. | 12-17-2015 |
