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| Number | Title | Issue Date |
| 7371983 | Structure of flexible element A structure of a flexible element has a force-receiving portion and a fixing portion, wherein the force-receiving portion is extended to have two arms for connecting with the fixing portion, so as to form two bending portions therebetween, characterized in that an i... | 05/13/2008 |
| 7369389 | Electronic trip unit for circuit breakers An electronic trip unit for a circuit breaker is disclosed. The electronic trip unit has a processing circuit, a real time clock chip, and a power source for powering the real time clock chip in the absence of current in the circuit breaker. The processing circuit i... | 05/06/2008 |
| 7350445 | Brake cartridge for power equipment Safety systems for power equipment, and components and brake cartridges for use in those safety systems, are disclosed. The safety systems, components and brake cartridges are specifically applicable for woodworking equipment such as saws. An exemplary brake cartrid... | 04/01/2008 |
| 7345569 | Temperature sensitive protection device for circuits A protection device includes a bi-metallic plate electrically connected between the first and second terminals, and the bi-metallic plate is bent upward to separate two contact points when the protection device is overloaded to cut off the circuit. A contact plate h... | 03/18/2008 |
| 7345568 | Dual protection device for circuits A protection device includes a bi-metallic plate having a first end fixed to a first terminal and a second of the bi-metallic plate has a first contact point so as to contact a second contact point on a first end of a carrier. A contact plate has a first end in cont... | 03/18/2008 |
| 7339129 | Spring to actuator bearing mechanism A plastic actuator for a toggle switch has a metal rod embedded therein, with the metal surface partially exposed. This surface of the metal rod functions as a bearing surface for a positioning spring as the actuator is flipped back and forth to turn the switch on a... | 03/04/2008 |
| 7310041 | Circuit breaker The invention relates to a re-settable, single-phase, thermo/electric circuit breaker utilizing a U-shape bimetallic element of substantial resistance properties in the circuit, so that when a predetermined overload current occurs the bimetallic element self heats a... | 12/18/2007 |
| 7227279 | Phase deficiency display device for thermal magnetic type molded case circuit breaker Disclosed is a display device for a thermal magnetic type molded case circuit breaker capable to display a phase deficiency occurred on a line to a user such that the user rapidly deals with the phase deficiency and prevents loss caused by over-heating generated due... | 06/05/2007 |
| 6836205 | Thermal switch containing resistance temperature detector A multiple output thermal detection and protection device providing an output signal representative of the temperature sensed by the device, and further providing a positive output signal representative of the sensed temperature reaching a predetermined set point te... | 12/28/2004 |
| 6720538 | Thermostat variation compensating knob A heating appliance having an electrical circuit that controls the temperature output of the heating appliance is provided with a bimetallic element that opens upon reaching a temperature level. A potentiometer in the circuit is used to select the temperature level ... | 04/13/2004 |
| 6545584 | Circuit breaker with inertia device to prevent shockout A pair of spring mounted masses have sufficient inertia to remain stationary in response to a shock force applied to the housing of a trip assembly in a circuit breaker to block movement of the trip bar and thereby prevent a nuisance trip.... | 04/08/2003 |
| 6410361 | Methods of fabricating in-plane MEMS thermal actuators A MEMS thermal actuator device is provided that is capable of providing linear displacement in a plane generally parallel to the surface of a substrate. Additionally, the MEMS thermal actuator of the present invention may provide for a self-contained heat... | 06/25/2002 |
| 6342826 | Pressure and temperature responsive switch assembly A switch having closed and open positions moves from one position to the other in response to either an elevated temperature or an excessive pressure. A switch member of bimetal material or shape memory alloy operates in response to an elevated temperatur... | 01/29/2002 |
| 6335113 | Thermostat and battery pack containing the thermostat A thermostat comprises a first laminated metal plate and a second laminated metal plate in which a plurality of metal layers having different rates of expansion are laminated. The first laminated metal plate has a movable contact. The second laminated met... | 01/01/2002 |
| 6160470 | Circuit breaker A circuit breaker includes an upper rail mounting device defined by a line terminal having a pair of spaced-apart jaws. A bimetal is adjusted by means of a calibration screw. An aperture is provided in an upper sidewall portion of a base of the circuit br... | 12/12/2000 |
| 6154115 | Overcurrent release device An overcurrent release device for protection switching devices, in particular automatic line circuit breakers or motor protective switches, with electromagnetic and thermoelectric release, includes a thermoconducting tubular supporting body onto which a c... | 11/28/2000 |
| 6104273 | Calibration assembly and process for use in a circuit protective device In an exemplary embodiment of the invention, a calibration arrangement and process for use in a circuit protective device are presented. An exemplary calibration assembly for use in the calibration process of the present invention includes a split clamp a... | 08/15/2000 |
| 6091315 | Switch having a safety element A switch has a switching mechanism, which switches at a response temperature, for opening and closing a circuit that can be connected to external terminals of the switch. In this context, the switching mechanism has a movable contact, electrically connect... | 07/18/2000 |
| 6054916 | Switch having a temperature-dependent switching mechanism A switch has a housing which receives a temperature-dependent switching mechanism and comprises a lower part on whose inner bottom a first countercontact for the switching mechanism is arranged, and a cover part, closing off the lower part, on whose inner... | 04/25/2000 |
| 5973585 | Overcurrent trip for circuit breakers An overcurrent trip (1) for circuit breakers or motor safety switches has a very short reaction time. The short reaction time is achieved by connecting a bimetal snap-action disk (8) to the heating device (7) in such a way that its central region is alway... | 10/26/1999 |
| 5933068 | Protective apparatus for an electrical installation having temperature-sensitive disconnection means A protective apparatus for an electrical installation, includes a device for connecting the protective apparatus to an electrical installation in parallel intermediate phase and zero and under no current and temperature-sensitive disconnection element for... | 08/03/1999 |
| 5894260 | Thermal sensing bi-metal trip actuator for a circuit breaker An actuator (144) for initiating a trip of a circuit breaker. Load current passes through a conductor (66) that is electrically coupled to a contact arm (56) by a braid (62). A thermally responsive bi-metal (64) has a first end portion which is disposed a... | 04/13/1999 |
| 5859578 | Current limiting shunt for current limiting circuit breakers A compact current limiting circuit breaker is equipped with a current limiting shunt for effective over-current circuit interruption. The circuit breaker trip unit responds to long time, short time and instantaneous over-current conditions by opening a se... | 01/12/1999 |
| 5847637 | Thermally responsive switch with a magnetic member A thermal protector includes a bimetal plate which is prevented from being vibrated by a magnetic field produced by a transformer or a motor. A member made of magnetic material is disposed in the vicinity of the bimetal plate. The fixed member for loosely... | 12/08/1998 |
| 5831508 | Component for a demagnetization circuit A component for a demagnetization circuit includes a thermistor with positive temperature characteristic having a first electrode and a second electrode, another thermistor with negative temperature characteristic having a third electrode and a fourth ele... | 11/03/1998 |
| 5828285 | Holder for a bimetallic switching device A pre-assembled holder (11) for a bimetallic switching device (12) in a temperature-dependent switch (10) comprises a supporting part (13) made of an electrically insulating material and two electrically conductive contact parts (14, 15) which are fastene... | 10/27/1998 |
| 5828287 | Automatic thermal shut-off switch A new Automatic Thermal Shut-Off Switch for preventing heat damage to a high pressure low volume water pump. The inventive device includes a T-shaped housing having a longitudinal cavity, a bimetallic compression spring within the cavity, a disc within ca... | 10/27/1998 |
| 5712609 | Micromechanical memory sensor A micromechanical memory sensor. The sensor comprises a latch member mechanically latching upon detection of a threshold value of a variable condition and circuitry for detecting such latching. A sensor further includes a resetting mechanism for electrica... | 01/27/1998 |
| 5684447 | Failsafe bimetallic reed having bimetal with fusible link for a circuit protector A bimetallic reed for a circuit protecting device includes an integral fusible portion as a failsafe interrupting mechanism. The bimetallic reed includes a body of electrical conductive materials and having a first end mountable to a terminal and a second... | 11/04/1997 |
| 5294902 | Fail-safe residential circuit breaker A molded case circuit breaker for residential use employs an additional safety feature to ensure a fail-safe condition in the event that the circuit breaker is installed within a circuit that may be subjected to an excessive over-current fault that disabl... | 03/15/1994 |
| 5221914 | Thermally responsive switch A thermally responsive switch for protecting electric motors against overcurrent and overheating conditions includes a metallic receptacle having an elongated dome-shaped portion and an opening opposite to the dome-shaped portion, a metallic header plate ... | 06/22/1993 |
| 5196820 | Thermally responsive switch and method of making the same A thermally responsive switch includes an elliptic dome-shaped metal receptacle, a header metal plate hermetically secured to the receptacle and having a through-aperture at one of two longitudinal ends, an electrical conductor inserted through the apertu... | 03/23/1993 |
| 5184269 | Overload protective device An overload protective device to the disposed in an electric circuit serving to supply current to a load has a pair of fixed contacts provided inside of a case and an inversible disk-like bimetal of a curved shape having a pair of movable contacts capable... | 02/02/1993 |
| 5155462 | Sub-miniature electrical component, particularly a fuse An electrical component, particularly a fuse for a surface-mount component, is formed by sputtering an electrical conductor onto a square tube, sleeving the tube into an outer tube, filling the assembly with a room-temperature vulcanizing silicone sealant... | 10/13/1992 |
| 5109210 | Thermal relay with remote controlled resetting and testing junctions A thermal relay is disclosed which can be remotely re-set and/or tripped by means of remote control electromagnets. The case of the relay has second fixing means adapted to receive first fixing means belonging to one and the same electromagnet can in which an ... | 04/28/1992 |
| 5078115 | Heating device A thermally and electrically conductive housing having a solid tip portion is shown mounting a heating element thermally and electrically coupled to the tip portion which in turn is electrically coupled to a switch mechanism mounted within the housing. Th... | 01/07/1992 |
| 5039843 | Safety cutout device A safety cutout device for electric loads, particularly for use in pressing irons and portable heating apparatus, has a temperature switch, such as a bimetallic switch, which is adapted to be connected in series with the electric load. An electrical compo... | 08/13/1991 |
| 5012495 | Switch and circuit breaker combination device An improved device for protecting an electrical load from a current overload combines an electrical switch and a re-settable circuit breaker in a single housing. The device avoids the use of gate plates, visually alerts an operator to the existence of a t... | 04/30/1991 |
| 4899124 | Thermally controlled electric switch A thermally controlled electric switching arrangement with a temperature controller, having a snap-action switch actuated by a bimetallic strip and of which the dead center position is displaceable by a manually operable setting device in order to influen... | 02/06/1990 |
| 4887062 | Thermal sensor assembly A thermal sensor assembly is shown as having a housing formed of first and second body sections with the first being a probe-like portion for introduction into a medium the temperature of which is to be monitored; a thermistor and an electrical switch are... | 12/12/1989 |
