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| Number | Title | Issue Date |
| 7564338 | Micromechanical device having integrated heating A micromechanical device having a micromechanical component and a heating element and a method for controlling and/or regulating the heating element. In this context, the heating element is used to bring the micromechanical component, which preferably has electrical... | 07/21/2009 |
| 7423514 | Constant-power constant-temperature resistive network A thermally stabilized device is described. Single or multiple input ports are accommodated and single and multiple power ports are described. The variation of resistance of a resistor subject to varying power dissipations is minimized by injecting complementary pow... | 09/09/2008 |
| 7355504 | Electrical devices An electrical device which comprises first and second laminar electrodes and a laminar PTC resistive element sandwiched between them, the device comprising (a) a main portion which comprises a main part of the first electrode, a ma... | 04/08/2008 |
| 7335855 | Electric PCB heating component, electronic circuit board and heating method An electric PCB heating component for a heating electric component is coupleable to an electronic circuit board. The PCB heating component includes a fastening element, a heating element for generating thermal energy, and a heating body. The heating body emits therm... | 02/26/2008 |
| 7320762 | Polymer compound with nonlinear current-voltage characteristic and process for producing a polymer compound The polymer compound contains a polymer matrix and a filler embedded in the matrix. The filler comprises two filler components with nonlinear current-voltage characteristics deviating from one another. By selection of suitable amounts of these filler components, a p... | 01/22/2008 |
| 7311268 | Nozzle body for a cleaning system on a motor vehicle A nozzle body for a cleaning system on a motor vehicle includes at least one feed line element adapted for connection to a cleaning liquid supply container. At least one nozzle element is connected to the feed line element by a channel section in the basic body. A h... | 12/25/2007 |
| 7282678 | Electric heating module An electric heating module includes an electric heater (10), a heat pipe (20) having an evaporating section (22) thermally attached to the electric heater and a condensing section (24), and at least one heat radiator (30, 40) therm... | 10/16/2007 |
| 7233226 | Method of producing a platinum temperature sensor A Platinum temperature sensor comprises a ceramic substrate and a platinum thin-film resistor applied to said ceramic substrate, a ceramic cover layer and a connecting layer generated from a ceramic green layer by pressure and temperature treatment. The ceramic cove... | 06/19/2007 |
| 7148785 | Circuit protection device A circuit protection device (31) suitable for surface mounting on a substrate (19). The device has a laminar PTC resistive element (3) which is composed of a conductive polymer composition and is positioned between first and second electrodes ( | 12/12/2006 |
| 7109842 | Robust fluid flow and property microsensor made of optimal material A robust sensor that incorporates the necessary physical structure and thermal characteristics is capable of measuring fluid flow and properties under harsh environmental conditions. The sensor die is made of a material with thermal conductivity tailored to provide ... | 09/19/2006 |
| 7075407 | Temperature sensor A temperature sensor has lead lines made of an elastic material each attached to a corresponding one of electrodes on a temperature sensing element such as an NTC thermistor element. The lead lines may each have a non-straight part where they are bent or deformed in... | 07/11/2006 |
| 7056014 | Flexible wired circuit board for temperature measurement A flexible wired circuit board for temperature measurement that can provide an accurate temperature measurement even when placed in a high-temperature atmosphere and can also be provided at a reduced cost. In the flexible wired circuit board for temperature measurem... | 06/06/2006 |
| 7053748 | Electrical devices A composite circuit protection device includes a laminar insulating member and first and second laminar circuit protection devices. Each of the first and second laminar circuit protection devices includes (1) a first laminar electrode, (2) a second laminar electrode... | 05/30/2006 |
| 7038415 | Motor driving device A temperature sensor (33) detects the temperature of a MOS transistor (7), and a current detecting circuit (35) detects current flowing in the MOS transistor (7). When the voltage corresponding to the detected temperature or the voltage c... | 05/02/2006 |
| 6975031 | Semiconductor device and chip carrier There are provided a carrier substrate, a temperature sensing resistor film formed directly on the carrier substrate, first and second conductive patterns formed on the carrier substrate and connected to both ends of the temperature sensing resistor film respectivel... | 12/13/2005 |
| 6945255 | Hair roller with a ceramic coating A hair care appliance has a body with an outer layer, and a first end and a second end connected to the body. The first end and the second end are for grasping the hair care appliance. The hair care appliance also has an adhesive layer on the outer layer of the body... | 09/20/2005 |
| 6861939 | Arrangement of a heating layer for a high-temperature gas sensor The operating temperature of a gas sensor capable of sensing a gas or a gas composition at a high temperature, for example 1000° C. is maintained constant over the entire volume of a gas sensor layer or function layer (4) secured to a sensor carrier section ... | 03/01/2005 |
| 6750754 | Over-current protection apparatus The present invention reveals an over-current protection apparatus comprising a first electrode plate, a second electrode plate, a third electrode plate, a conductive element and a high resistance material layer, where the high resistance material layer may contact ... | 06/15/2004 |
| 6744346 | Electronic device workpieces, methods of semiconductor processing and methods of sensing temperature of an electronic device workpiece The present invention includes electronic device workpieces, methods of semiconductor processing and methods of sensing temperature of an electronic device workpiece. In one aspect, the invention provides an electronic device workpiece including: a substrate having ... | 06/01/2004 |
| 6392528 | Circuit protection devices An electrical device which contains a first electrode, a second electrode, a third electrode, a first resistor which is connected in series between the first and second electrodes, and a second resistor which (i) is thermally coupled to the first resistor... | 05/21/2002 |
| 6232868 | Hybrid circuit arrangement with overload protection Hybrid circuit arrangement having a resistance layer applied at least on one side of a plate-shaped substrate of glass or ceramic and having at least one overload protection arranged on the substrate that is electrically connected to the resistance layer,... | 05/15/2001 |
| 6184773 | Rugged fluid flow and property microsensor A thermal fluid flow or property sensor having no exposed contact wires or contact pads in the fluid flow path to obstruct measurements, flat fully passivated sensor surfaces and high corrosion resistance is implemented over a honeycombed thermal isolatio... | 02/06/2001 |
| 6157286 | High voltage current limiting device A high voltage, current limiting device is connected in series with a high voltage power source and a protected load to interrupt current for an over-current condition [Typically 50 kA]. The current limiting device includes a current sensor/isolator and a... | 12/05/2000 |
| 6149123 | Integrated electrically operable micro-valve Integrated, electrically operable micro-valves are formed to control fluid flow and pressure. These valves convert electrical energy to mechanical energy through an energy conversion device having a sealed cavity with a flexible wall. The sealed cavity co... | 11/21/2000 |
| 5865417 | Integrated electrically operable normally closed valve A genus of integrated valves having an integrated actuator with a thin, flexible membrane formed of silicon driven by pressure of a fluid trapped in a cavity formed by bonding a first and second die. The cavity has a resistor formed therein through which ... | 02/02/1999 |
| 5831511 | Resistance temperature detector assembly and method of fabricating same A resistance temperature detector (RTD) unit includes an RTD assembly that is removably supported in a central chamber of a support assembly. In a preferred arrangement, the RTD assembly and the central chamber are arc shaped to facilitate removal from th... | 11/03/1998 |
| 5473304 | Method of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the method A method is disclosed for the protection of catalytic converters for exhaust gas purification by measuring the temperature with a heat tone sensor suitable particularly for the implementation of the method, wherein a heat tone sensor composed of at least ... | 12/05/1995 |
| 5416462 | Electrical resistance element An electrical resistance element having a resistance body between two contact terminals. The resistance body has PTC behavior and is composed of a polymer matrix and a filler component embedded in the polymer matrix. The filler component is composed of el... | 05/16/1995 |
| 5414403 | Current-limiting component A current-limiting component having an electrical resistance body arranged between two contact terminals. The resistance body contains a first resistance material having PTC behavior. Below a limit temperature, the first resistance material has a low cold... | 05/09/1995 |
| 5258736 | Temperature sensor or temperature sensor arrangement made from glass ceramic and bonding film resistors Temperature sensors or temperature sensor arrangements made from glass ceramic and bonding film resistors, suitable especially for control and limitation of output in glass ceramic cooking areas, are distinguished in that thin- and/or thick-film resistors... | 11/02/1993 |
| 5166658 | Electrical device comprising conductive polymers Circuit protection systems which comprise a PTC resistor and a second resistor, e.g. a thick film resistor, which is thermally and electrically connected to the PTC resistor have a break current IB and a hold current IH such that the... | 11/24/1992 |
| 5148124 | Monolithic microwave integrated circuit noise generator and variable resistance device A monolithic microwave integrated circuit device provides a microwave transmission line with a resistor coupled thereto and a heating element thermally coupled to the resistor but electrically insulated therefrom by a dielectric layer. Heating the resisto... | 09/15/1992 |
| 5142267 | Level sensor which has high signal gain and can be used for fluids particularly chemically corrosive fluids A PTC-resistor which is a temperature dependent electrical thermistor of semiconductor ferro-electric ceramic which is provided with power leads and serves as a sensor element is directly fused into glass. The power leads are welded to metal coatings form... | 08/25/1992 |
| 5123752 | Wear resistant temperature sensing device A temperature sensing device for moving surfaces such as electrostatographic fusing rollers includes an electrothermal material such as a thermistor printed on a concave shaped, thermally conductive ceramic substrate with a high temperature lubricant betw... | 06/23/1992 |
| 5038752 | Boiling water dispenser having improved water temperature control system A sensor assembly for boiling water dispenser includes clamping members for mounting a sensor such as a thermister in position to sense the presence and absence of steam.... | 08/13/1991 |
| 5035514 | Thermal probe for measuring thermal properties of a flowing medium A device for heating a medium with which the device is in thermal contact for use in determining the thermal or flow properties of the medium. The device has a heater for supplying heat to the medium at an interface of the device with the medium and a tem... | 07/30/1991 |
| 4943032 | Integrated, microminiature electric to fluidic valve and pressure/flow regulator A pressure regulator integrated in a sandwich of pyrex and silicon wafers. A first integrated valve comprising a silicon wafer in which there is etched a cavity so as to leave a flexible membrane of silicon is sandwiched between two other wafers which are... | 07/24/1990 |
| 4914742 | Thin film orthogonal microsensor for air flow and method A microbridge air flow sensor which has a sealed etched cavity beneath the silicon nitride diaphragm so that the cavity is not susceptible to contamination from residual films or other material accumulating within the cavity. The cavity thermally isolates... | 04/03/1990 |
| 4825693 | Slotted diaphragm semiconductor device An integrated semiconductor device includes a semiconductor body with a first surface having a predetermined orientation with respect to a crystalline structure in the semiconductor body. The semiconductor body has a depression formed into the first surfa... | 05/02/1989 |
| 4821997 | Integrated, microminiature electric-to-fluidic valve and pressure/flow regulator There is disclosed herein an apparatus for converting control signals of an electrical or optical nature or any other type of signal which may be converted to a change of temperature of a fixed volume of material trapped in a chamber to flexure of a membr... | 04/18/1989 |
