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| Number | Title | Issue Date |
| 8164412 | Thermal link and method for producing said link The invention relates to a thermal link (1) for electrical appliances, comprising an insulating part (10) with electrical terminals (11) and contact springs (12) for providing electrical contact between said terminals (11), a fusib... | 04/24/2012 |
| 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 |
| 7239513 | Power control device The power control device has three units, each having two cooling fins set in opposed positions. Every cooling fin has an SCR mounted to adjust the voltage change. One of the two opposed cooling fins has a reed and a circuit board mounted thereon, and the power supp... | 07/03/2007 |
| 7206505 | Volatizer with integrated thermal cutoff A volatizer has a case that deforms to interrupt electrical current flow through an internal heating element. ... | 04/17/2007 |
| 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 |
| 6801117 | Fault sensing wire and alarm apparatus A fault sensing electrical wire (411) utilized one or more sensor strips (407) which provide an impedance change when the wire is subject to an overtemperature condition or mechanical damage of the wire. A control unit (402) measures the impedan... | 10/05/2004 |
| 6737952 | Combined pressure responsive electrical switch and temperature sensor device A combined pressure responsive electrical switch and temperature sensor device (10, 10′) is shown comprising a base member (12) mounting an electrical switch actuatable by a pressure responsive snap-acting disc (16) attached to a port fitting ... | 05/18/2004 |
| 6707370 | Thermal switch and heater A thermal switch comprises an elongate tubular sealed housing. A control circuit is mounted in the housing. The control circuit comprises a thermostat, a fuse and a thermal overload switch electrically connected in series. An electrical connector is mounted to the h... | 03/16/2004 |
| 6512444 | Fault sensing wire and alarm apparatus A fault sensing electrical wire (411) utilizes one or more sensor strips (407) which provide an impedance change when the wire is subject to an overtemperature condition or mechanical damage of the wire. A control unit (402) measures the impedance of the ... | 01/28/2003 |
| 6369688 | Automatic gang switch having a heat ray sensor The automatic gang switch having a heat ray sensor is fixedly mounted on a mounting frame having a generally rectangular opening. The length of a housing of the switch is approximately two thirds of that of the generally rectangular opening of the mountin... | 04/09/2002 |
| 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 |
| 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 |
| 5973586 | Temperature sensitive tip-switch In one embodiment of the present invention, a temperature sensitive tip switch comprises a first conductive arm, a second conductive arm disposed in a parallel, spaced apart relation beneath the first conductive arm, a third conductive arm disposed in a p... | 10/26/1999 |
| 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 |
| 5852283 | Electrical heating elements and controls therefor A planar heating element for an electrically-heated water boiling vessel comprises a stainless steel plate having a printed heating element formed on one side thereof, the printed beating element being sandwiched between electrically-insulating layers of ... | 12/22/1998 |
| 5831507 | Dual-functional fuse unit that is responsive to electric current and ambient temperature A dual-functional fuse unit, which is responsive to an electric current and an ambient temperature, contains a current sensing fuse and a temperature sensing fuse element. The current sensing fuse is serially connected with and between lead terminals of t... | 11/03/1998 |
| 5596307 | Thermostat A thermostat consecutively comprising a temperature switch unit having a heat sensing element and switching contacts, and a forced reset unit having a plunger and a coil, in which a guide pin is disposed between the heat sensing element and switching cont... | 01/21/1997 |
| 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 |
| 5055726 | Plug-on protector for compressor motor Electrical terminal pins (start, main and common) mounted in a glass header to provide electrical connection to a compressor motor are shown with a motor protector disposed on one of the pins in such a fashion that opposite-direction-oriented right angle ... | 10/08/1991 |
| 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 |
| 4885560 | Thermal relay A thermal relay includes a housing, two fixed contacts secured to respective terminals disposed in the housing, a disc-shaped bimetal disposed in the housing and having two movable contacts made into and out of engagement with the respective fixed contact... | 12/05/1989 |
| 4876523 | Switch for circuit breaker A switch is shown having a thermostatic member which deforms in response to variations in temperature to thereby control the state of energization of the switch. The thermostatic member is shown cantilever mounted or centrally mounted using material to af... | 10/24/1989 |
| 4829280 | Thermal control units An element protector control for protecting the electrically powered heating element of a kettle against overheating has primary and secondary (or back-up) modes of operation. The primary protection mode utilizes a dished, snap-acting bimetal which is ori... | 05/09/1989 |
| 4536736 | Thermostat A bulb-and-capillary type temperature sensor move a fulcrummed lever arm for effecting tripping of a snap-acting switch. The lever arm has a resilient bimetal strip cantilevered thereon which is biased at its free end away from the lever by an adjustment ... | 08/20/1985 |
| 4472705 | Thermostatic switch with thermal override A bimetallic disc actuated thermostatic switch with thermal override comprises a base, a fixed contact on the base, a movable contact and a bimetallic disc which moves the movable contact into and out of engagement with the fixed contact to effect or inte... | 09/18/1984 |
| 4360725 | Overtemperature protector for an electrically heated appliance An overtemperature protector for an appliance having an electrical heating element includes a fixed contact, a movable contact carried by a spring blade and settable into engagement with the fixed contact to complete the energizing circuit to the heating ... | 11/23/1982 |
| 4319126 | Temperature dependent electric current-regulator-or-limiting switching element for electrical appliances: especially electrically heated devices A temperature responsive switching device is provided in which a pair of spaced bimetallic electrical switching arms each are anchored to opposite sides of a mounting block for attachment to the respective power leads of an electrical supply circuit. The ... | 03/09/1982 |
| 4307370 | Heat sensitive circuit breaker employing meltable material A heat sensitive circuit breaker for electrical apparatus, composed of an insulated member carrying electrical contacts and contact springs for producing an electric current flow path, a heat transfer plate, a thermal actuator composed of a body of meltab... | 12/22/1981 |
| 4249154 | Temperature responsive electrical switching device and method of calibrating A temperature responsive electrical switching device provides an electrical connection between first and second electrical connectors when the temperature of the device is less than a predetermined threshold temperature and terminates the electrical conne... | 02/03/1981 |
| 4090166 | Switch structure and calibration technique Disclosed are a switch structure and a calibration technique that facilitate the rapid and substantially automatic calibration of a switch of the type that responds to changes in an environmental parameter (e.g., a thermostatic switch). An abutment member... | 05/16/1978 |
| 4020442 | Composite-type heat-system fire sensing device Disclosed herein is an improved composite-type heat-system fire sensing device consisting essentially of a differential sensing element and constant-temperature sensing element, capable respectively of actuating a pair of electric contacts. These two type... | 04/26/1977 |
