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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7292133 | Resistance circuit, and voltage detection and constant voltage generating circuits incorporating such resistance circuit A resistance circuit included in a semiconductor apparatus, which is formed of a plurality of thin film metal resistors connected in series, capable of achieving a precise resistance adjustment over a wide range by disconnecting or changing the resistors by laser be... | 11/06/2007 |
| 7292132 | NTC thermistor probe An apparatus for temperature measurement comprising at least one insulator, at least one thermistor attached to the insulator, the thermistor having at least one of a Ge NTC die and an Si NTC die, and at least one outer electrically conductive film attached to the i... | 11/06/2007 |
| 7277289 | Resistor for controlling a fan motor rotating speed for use in an air conditioner Provided is a resistor for controlling a fan motor rotating speed for use in an air conditioner. The resistor comprises a base body, a radiator attached to a top portion of the base body, a printed resistor circuit board covered with insulating sheets and received w... | 10/02/2007 |
| 7221253 | Fusible resistor and method of fabricating the same A fusible resistor and method of fabricating the same is provided. The fusible resistor has a very low resistance of 20 to 470 mΩ. by depositing thin films as a fusible element made of a material with low resistivity such as copper having a temperature coefficient ... | 05/22/2007 |
| 7205504 | Interlayer composite for a laminated transparency An interlayer composite includes a plastic sheet having a predetermined outer shape and a major surface; a pair of bus bars, and an adhesive layer securing the bus bars directly on the major surface of the plastic sheet in a fixed relationship to one another. ... | 04/17/2007 |
| 7201033 | Flowmeter in-situ calibration verification system A calibration system includes a tube or other conduit, a gas source, and a computational device. The tube has an end positioned relative to a flow sensor, and is in communication with the gas source. The tube and gas source introduce calibration gas into the tube at... | 04/10/2007 |
| 7191645 | Dynamic mixed gas flowmeter A compensated flowmeter having a probe adapted to project into flowing media within a conduit. The probe includes a thermal dispersion sensor, and a compensating gas properties sensor contained within a no-flow chamber of the probe. The thermal flow sensor has activ... | 03/20/2007 |
| 7189367 | Reactor and process for production thereof In order to be capable of a chemical reaction, analysis or the like wherein a small amount of samples is used, a reactor comprises a flat plate-like first substrate the inside of which is provided with a heating means; and a flat plate-like second substrate, which i... | 03/13/2007 |
| 7187161 | Transient protection of sensors The present invention includes a system with a sensor to detect a change in one or more physical characteristics and provide a corresponding electrical sensor signal, a controller including a power source for the sensor, and transient suppression circuitry. This cir... | 03/06/2007 |
| 7159756 | Method of soldering and solder compositions The invention relates to using the heat generated during thermal treatment of one or more glass sheets to melt solder. In one nonlimiting embodiment, a lead providing external access to an electrical conductive arrangement, e.g. a conductive member between and conne... | 01/09/2007 |
| 7154371 | Negative temperature coefficient attenuator A temperature tracking attenuator includes a substrate having a circuit chip with electrical connections providing a thermal interface with adjacent circuitry providing an attenuator component package. The package comprises a thermal layer on one side which is adhes... | 12/26/2006 |
| 7132625 | Heatable article having a configured heating member A heatable article, e.g. a heatable windshield, having a generally trapezoidal shape has a conductive member, e.g. a conductive coating, between and in contact with a pair of spaced bus bars having different lengths. Selected portions of the coating between the bus ... | 11/07/2006 |
| 7128467 | Thermistor probe assembly and method for positioning and moisture proofing thermistor probe assembly A thermistor probe assembly with a thermistor element and a positioning device for positioning the thermistor element at a pre-determined location within the assembly. The positioning device includes a cavity extending through it, at least three self-centering lobes... | 10/31/2006 |
| 7071093 | Integrated treatment method for obtaining robust low dielectric constant materials An integrated method comprises providing a low dielectric material, applying a first treatment altering a first property of the low dielectric material, and applying a second treatment altering a second property of the treated low dielectric material and producing a... | 07/04/2006 |
| 7064937 | System and method for fixing a direction of magnetization of pinned layers in a magnetic field sensor A spin valve GMR sensor configured in a bridge configuration is provided. The bridge includes two spin valve element pairs. The spin valve elements include a free layer, a space layer, a pinned layer, and a bias layer. The bias layer includes a first bias layer and ... | 06/20/2006 |
| 7016163 | Magnetic field sensor A spin valve GMR sensor configured in a bridge configuration is provided. The bridge includes two spin valve element pairs. The spin valve elements include a free layer, a space layer, a pinned layer, and a bias layer. The bias layer includes a first bias layer and ... | 03/21/2006 |
| 7002114 | Methods and apparatus for a variable resistor configured to compensate for non-linearities in a heating element circuit An improved variable resistor at least partially compensates for non-linearities in an electrical circuit containing a heating element, for example, a thin-film heating element. A controllable heater includes a heating element, a voltage source (for example, a stand... | 02/21/2006 |
| 6977575 | Flexible averaging resistance temperature detector A temperature sensor. The sensor comprises a wire comprising a resistance temperature detector (RTD) sensing material wrapped around a flexible insulated metal core wire to form an assembly. A first end of the sensing wire is electrically connected to a first end of... | 12/20/2005 |
| 6967561 | Current control device A current control device is described wherein a pressure conduction composite is compressed and decompressed to alter its conductivity and thereby current conduction through the device. The pressure conduction composite is composed of a nonconductive matrix, a condu... | 11/22/2005 |
| 6953911 | Edge sealing of a laminated transparency A composite laminate useable in the manufacture of articles having a member responsive to electrical stimuli, e.g. changes transmission, and/or is heated, as current passes through the member includes a pair of spaced bus bars adhesively secured to a major surface o... | 10/11/2005 |
| 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 |
| 5975756 | Heater wire temperature measuring copper shield A method of measuring the temperature of a wire which is surrounded by a layer of insulation includes the step of wrapping the layer of insulation with an electrically and thermally conductive ground shield having two opposing longitudinal ends, one of th... | 11/02/1999 |
| 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 |
| 5795545 | Integrated ceramic exhaust gas sensors A multilayered ceramic integrated sensor 200 for monitoring auto exhaust gases is capable of existing in the relatively harsh environments of the exhaust stream of an internal combustion engine. The integrated sensor 200 may include discrete devices such ... | 08/18/1998 |
| 5783154 | Sensor for reducing or oxidizing gases In a gas sensor for sensing reducing or oxidizing gases which comprises a semiconductive metal oxide film, there are provided stripe-like outer electrodes which define therebetween a continuous surface area and stripe-like inner electrodes which extend be... | 07/21/1998 |
| 5635893 | Resistor structure and integrated circuit A resistor structure (10) having a heating element (35) and a resistor (32), and a method of trimming the resistor (32). The heating element (35) is separated from the resistor (32) by a layer of dielectric material (19). The resistor (32) has a layer of ... | 06/03/1997 |
| 5594407 | Debris-reducing film-type resistor and method A resistor combination and method, that is formed by a substrate having a resistive film on it, and pins extruding from one edge of the substrate and connected to the film. A U-shaped cold region is provided on the substrate around at least much of the fi... | 01/14/1997 |
| 5550527 | Resistor device for controlling a rotational speed of a motor A resistor device for controlling a rotational speed of a resistance unit and an open-circuit means. A receiving recess is provided to any one side surface of a heat sink vertically affixed to a top surface plate of a housing. A resistance unit, which is ... | 08/27/1996 |
| 5404126 | Fuse Resistor, and discharging-type surge absorbing device with security mechanism A fuse resistor protects a circuit from a surge, an overcurrent from an unexpected connection, or the like. When a continuous overvoltage higher than a predetermined value is applied to the circuit, the heat from a heat-generating resistant film fractures... | 04/04/1995 |
| 5313184 | Resistor with PTC behavior An electric resistor has a resistor body arranged between two contract terminals. This resistor core includes an element with PTC behavior which, below a material-specific temperature, forms an electrically conducting path running between the two contact ... | 05/17/1994 |
| 5295389 | Thermal conductivity detector A thermal conductivity detector includes a thin diaphragm, a heat-generating portion, and a pair of boundary holes. The thin diaphragm is obtained by forming a space in part of a base. The heat-generating portion is formed in the diaphragm. The boundary h... | 03/22/1994 |
| 5291174 | Ceramic substrate blower motor resistor array An improved blower motor speed control resistor array in which the resistor elements are defined by multiple optimally sized patches of resistive ink deposited onto opposite sides of a thin flat ceramic substrate. The array comprises three resistive patch... | 03/01/1994 |
| 5287081 | Multilayer thin film multijunction integrated micropotentiometers Multilayer, thin film multijunction integrated micropotentiometers are formed in an integral multifilm membrane form over a through opening in a nonmagnetic, dielectric substrate. Through the use of conventional photolithographic and etching techniques, i... | 02/15/1994 |
| 5274351 | Resistance unit for motor speed control The present invention relates to a resistance unit for controlling a motor speed of driving a blower of an automobile air conditioner. The resistance unit includes a resistance circuit board printing a plurality of resistors in the form of double layers o... | 12/28/1993 |
| 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 |
| 5221916 | Heated extended resistance temperature sensor An extended resistance temperature sensor formed of a plurality of lengths of pre-insulated resistance temperature detector (RTD) wire. The RTD wire is either unheated, self heated, alternatingly self heated or is heated by means of strands of heater wire... | 06/22/1993 |
| 5201223 | Method of sensing fluid flow and level employing a heated extended resistance temperature sensor An extended resistance temperature sensor formed of a plurality of lengths of pre-insulated resistance temperature detector (RTD) wire. The RTD wire is either unheated, self heated or is heated by means of strands of heater wire integrated with or placed ... | 04/13/1993 |
| 5167153 | Method of measuring physical phenomena using a distributed RTD An RTD (resistance temperature sensor or detector) sensing device which is a long, thin, unitary device adapted to be distributed across an extended field for the continuous, uninterrupted sensing or interrogation of such field, avoiding the inaccuracy, u... | 12/01/1992 |
| 5117216 | Distributed RTD An RTD (resistance temperature sensor or detector) sensing device which is a long, thin, unitary device adapted to be distributed across an extended field for the continuous, uninterrupted sensing or interrogation of such field, avoiding the inaccuracy, u... | 05/26/1992 |
| 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 |
