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| Number | Title | Issue Date |
| 7515029 | Starting device for single-phase induction motor A starter of single-phase induction motor having main winding and auxiliary winding energized by alternating current power source, including a casing, a positive characteristic thermistor connected in series to the auxiliary winding, an auxiliary positive characteri... | 04/07/2009 |
| 7489228 | Low power consumption bistable microswitch A bistable MEMS microswitch produced on a substrate and capable of electrically connecting ends of at least two conductive tracks, including a beam suspended above the surface of the substrate. The beam is embedded at its two ends and is subjected to compressive str... | 02/10/2009 |
| 7372356 | Concealed adjustable temperature switch A concealed adjustable temperature switch includes a fixed plate, an adjusting block threadedly engaged with a screw hole of the fixed plate, a bimetal plate, and a metal plate. Mounted on the adjusting block are upper and lower positioning rings and a fixing ring b... | 05/13/2008 |
| 7339454 | Tensile-stressed microelectromechanical apparatus and microelectromechanical relay formed therefrom A microelectromechanical (MEM) apparatus is disclosed which includes a shuttle suspended above a substrate by two or more sets of tensile-stressed beams which are operatively connected to the shuttle and which can comprise tungsten or a silicon nitride/polysilicon c... | 03/04/2008 |
| 7336149 | Circuit breaker having a bimetallic snap-action disk A circuit breaker includes a bimetallic snap-action disk fixed to a bimetallic connection disposed in the vicinity of a fixed contact connection inside a coverable housing. The bimetallic disk has a contact end with a contact superposed with a fixed contact of the f... | 02/26/2008 |
| 7301434 | Thermally responsive electrical switch A motor protector (10) is shown having an elongated generally cup-shaped metallic housing (12) formed by a top wall (12a) and a side wall (12b) extending down from the perimeter of the top walls, the free end of which is wel... | 11/27/2007 |
| 7292131 | Heat-sensitive switch and a heat-sensitive switch assembling method A heat-sensitive switch includes a first terminal, a second terminal away from the first terminal, a reverse spring reversing at a set temperature and having an opening part and positioned between the first and second terminals, and a junction spring positioned betw... | 11/06/2007 |
| 7283030 | Doubly-anchored thermal actuator having varying flexural rigidity A doubly-anchored thermal actuator for a micro-electromechanical device such as a liquid drop emitter or a fluid control microvalve is disclosed. The thermal actuator is comprised of a base element formed with a depression having opposing anchor. A deformable elemen... | 10/16/2007 |
| 7209337 | Electrical thermal overstress protection device An electrical current overstress protection device for use with a power source and an overload protection switch comprising a main conductor member receiving current from the power source; a parallel conductor member connected to the main conductor member; and an ar... | 04/24/2007 |
| 7116207 | Safety device for switches A switch includes a body and a switch member is pivotably engaged with the top opening of the body. A resilient member is connected between an inside of the body and a first end of the switch member. The switch member further has an extension extending from a second... | 10/03/2006 |
| 7109840 | Protector for electrical apparatus A protector (10) particularly useful for wye-connected three phase electrical motors has a header (12) mounting first and second terminal pins (14) to which L-shaped pin heaters (16) are mounted along with stationary electrical contacts (... | 09/19/2006 |
| 7102481 | Low current electric motor protector A low current motor protector (10, 10′) has an oblong metal housing (12) defining a switch chamber and formed with an open end. The housing has opposing flange portions extending transversely from the open end. Spaced apart lid portions (18... | 09/05/2006 |
| 7024940 | Force measurement of bimetallic thermal disc An apparatus and method for determining the actuation energy generated by a bimetallic actuator during transit between first and second states of stability. The apparatus and method further determining the threshold or set-point temperature of the bimetallic actuato... | 04/11/2006 |
| 6995647 | Low current electric motor protector A low current motor protector (10, 10′) has an oblong metal housing (12) defining a switch chamber and formed with an open end. The housing has opposing flange portions extending transversely from the open end. Spaced apart lid portions (18... | 02/07/2006 |
| 6768412 | Snap action thermal switch A simplified snap-action micromachined thermal switch having a bimodal thermal actuator fabricated from non-ductile materials such as silicon, glass, silicon oxide, tungsten, and other suitable materials using MEMS techniques. ... | 07/27/2004 |
| 6762667 | Micro electromechanical switch having self-aligned spacers A method of fabricating and the structure of a micro-electromechanical switch (MEMS) device provided with self-aligned spacers or bumps is described. The spacers are designed to have an optimum size and to be positioned such that they act as a detent mechanism for t... | 07/13/2004 |
| 6703917 | Resettable fuse/circuit interrupter with visual fault indication A circuit interrupter device protects a load circuit from excessive, or overloading levels of current, provides a visual indication of circuit overload and open circuit, and can be reset. A multi-metallic heat reactive strip is snapped by an overload curr... | 03/09/2004 |
| 6621402 | Circuit breaker A circuit breaker includes a housing having a rim defining an open top and having a closed bottom defining two slots. A button is pivotally connected to the housing at the open top and is pivotal relative to the housing between two extreme positions. A fi... | 09/16/2003 |
| 6617951 | Safety switch A safety switch includes a casing having a first terminal plate having a first contact point and a second terminal plate to which an end of a bi-metal plate is connected. A second contact point is connected to the bi-metal plate. A movable member is movab... | 09/09/2003 |
| 6590489 | Circuit breaker for protecting electric circuits in road vehicles A circuit breaker for protecting electrical circuits, particularly in motor vehicles, includes a flat housing, which comprises an insulating material and has two adjacent flat plugs. A bimetal that is embodied as a snap-action element and is fixed to a fl... | 07/08/2003 |
| 6538553 | Switching element for electric switch A switching element of a sheet of resilient metal having high and low heat-expansive sides, the switching element having a middle leg carrying an electric contact for making and breaking a circuit with a stationary contact on a substrate below, first and ... | 03/25/2003 |
| 6498559 | Creepless snap acting bimetallic switch having step adjacent its bimetallic element A bimetallic switch comprising a bimetallic element having an outer edge and being adapted to snap between an open mode and a closed mode; a movable contact disposed on the bimetallic element; a first terminal in electrically conductively coupled to the m... | 12/24/2002 |
| 6498560 | Protector assembly and method for electrically insulating a thermally responsive protector from a motor winding of an electric motor A protector assembly and method for protecting motor windings from an overload condition. The assembly comprises a thermally responsive protector, a skirt, and a sleeve. The protector comprises a housing, an end cap, at least one terminal, and a thermally... | 12/24/2002 |
| 6456190 | Device for micromechanical switching of signals The invention refers to a micromechanical switching device including at least two contact elements (11, 12, 31, 32), which are provided at least partly movable relative each other and via thermal actuation can be closed and opened, whereby the contact ele... | 09/24/2002 |
| 6239685 | Bistable micromechanical switches A bistable micromechanical switch that includes a substrate, at least two anchor points formed on the substrate, and a beam structure that includes a two-material beam attached to at least two anchor points. The two-material beam has a first portion, a se... | 05/29/2001 |
| 6154117 | Thermal switch A thermal switch includes a metal header plate having two through holes, two terminals inserted through and airtightly fixed in the through holes of the header plate, a metal housing including a cylindrical portion having an open end and a generally shall... | 11/28/2000 |
| 6100784 | Temperature-dependent switch with contact bridge A temperature-dependent switch (10) has a temperature-dependent switching mechanism (12) and a closed housing (11), receiving the switching mechanism (12), which comprises a lower part (14) as well as an upper part (17) made of insulating material. Two st... | 08/08/2000 |
| 5949322 | Switch protecting against increased temperatures An flat casing (10) exhibiting a convex curvature to the outside on all sides, is slid onto the projection (1a) of a base (1). The casing (10) protects a contact device anchored in the base (1). The base (1) protrudes with the peripheral brackets (1b), fo... | 09/07/1999 |
| 5939970 | Thermally responsive switch A thermally responsive switch includes a metal housing formed into the shape of a bottomed cylinder and having an open end, a header plate including a metal plate having a through hole and an electrically conductive lead terminal pin inserted through and ... | 08/17/1999 |
| 5905620 | Apparatus for protecting a device An apparatus (10) for protecting an electrical device comprises two temperature-dependent switching mechanisms (12, 13) each having at least two temperature-dependent switch conditions, and three external terminals (15, 16, 17). The two switching mechanis... | 05/18/1999 |
| 5796327 | Thermally responsive electrical switches A thermally-responsive current-sensitive switch having a molded plastic body containing first and second terminals in the form of metal stampings and having an internal chamber wherein a leaf spring and a snap-acting bimetallic blade of the same shape are... | 08/18/1998 |
| 5491460 | Instrument switch having integrated overcurrent protection An electrical instrument switch includes a rocker switch for manual on-and-off switching and that is seated in an insulation housing. Depending on the pivot position, the rocker switch moves, with a working end that dips into the housing interior, a conta... | 02/13/1996 |
| 5463233 | Micromachined thermal switch A monolithic micromachined temperature switch obviates the necessity of assembling discrete components and also allows the temperature switch to be disposed in a relatively small package. In one embodiment of the invention, the temperature switch includes... | 10/31/1995 |
| 5428336 | Electric switches A thermally-responsive switch, designed to go open circuit in response to relatively low overload currents of the order of 2 amps and below, comprises a moulded plastics body capturing therein first and second simple copper wire terminals and having an in... | 06/27/1995 |
| 5235308 | Thermal protector A thermal protector comprises a case having a space surrounded by a bottom surface and a wall surface; a pair of fixed electrodes secured to the bottom surface of the case and located so as to be separated from each other in the space; a disk-shaped bimet... | 08/10/1993 |
| 5229740 | Thermally responsive switch A thermal protector includes a metal housing having open and closed ends, a header plate secured to the housing so as to close its open end and having two through-apertures, first and second terminal pins hermetically secured in the respective apertures o... | 07/20/1993 |
| 5206622 | Protector device with improved bimetal contact assembly and method of making The present invention provides an improved thermostatic contact assembly for use in a protector and method of making wherein weld projections are formed on the thin snap-acting bimetal disc for attaching the movable contact member to provide better alignm... | 04/27/1993 |
| 5023744 | Temperature switching device A temperature switching device for an electrotechnical part to be protected against an excess temperature due to a fault, with a first bimetallic switch and an ohmic resistor connected in parallel thereto, so that, after opening the bimetallic switch as a... | 06/11/1991 |
| 5023586 | Hermetic motor protector A motor protector having a can and an internal electrical contact is hermetically sealed to a disk-shaped header of conductive material, the header having a flattened edge for orientation in the can during fabrication of the protector and having spaced co... | 06/11/1991 |
| 4987336 | Reversible short-circuit and the use of said short-circuit in a photoelectric tube A reversible short circuit device in the form of a metal loop. The metal loop has a first base side which forms a first contact. Extending from the base side are second and third generally parallel sides. The second side includes a contact portion for eng... | 01/22/1991 |
