| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 219497000 | Comprising voltage and/or current measuring and comparing or combining means | 26 |
| 20080210683 | HEATER ASSEMBLY FOR SUTURE WELDER - Disclosed is a heater device for thermally welding suture strands, including: a substrate extending from a first end to a second end along a substrate axis, and having a substantially planar heater support surface; a joinder layer disposed on the heater support surface; a heater element extending from a first end to a second end along a heater axis thereof and disposed on the joinder layer, the heater element being a layer and being coupled to the support surface by the joinder layer; an electrical interface including a first electrically conductive element coupled to the first end of the heater element, and a second electrically conductive element coupled to the second end of the heater element. in some embodiments, the heater element is elongated along the heater axis, | 09-04-2008 |
| 20080302784 | WATER STORAGE DEVICE HAVING A POWERED ANODE - A powered anode assembly. The powered anode assembly includes an electrode wire, a shield tube, and a connector assembly. The electrode wire has a first portion and a second portion. The shield tube substantially covers the first portion of the electrode wire, leaving a small portion of the first portion open. The connector assembly includes a connector that is electrically connected to the electrode wire, and a fastener that is physically coupled to but electrically isolated from the connector. | 12-11-2008 |
| 20090045187 | Adaptive Temperature Controller - The adaptive temperature controller includes a device for measuring resistance, an electrically-conductive material, a power supply, and a device for controlling power. In operation, the controller determines the resistance of material at one or more temperatures and therefore determines the resistance of the material through a range of operating temperature. Based on such determination so long as voltage and power are known, the resistance of the material, and therefore its temperature, are known. As a result the voltage or power may be instantly varied to produce near infinite control over material temperature. | 02-19-2009 |
| 20090107982 | HEATED BREATHING CIRCUIT DETECTION - A heated breathing circuit detection system verifies the proper set up and connection of a breathing circuit to a heater unit of a humidification system. The detection system automatically detects that the breathing circuit is connected to the heater unit, and the nature of the heating circuit(s) thereof. In one embodiment, the resistance of the heating circuit(s) is determined and compared to an expected resistance or range of acceptable resistances to determine if the heater circuit(s) is properly or actually attached and properly operating. The humidification system also has the ability to determine the delivery mode of the breathing circuit, i.e., whether a single inspiratory limb, or both inspiratory and expiratory limbs, is connected to the heater unit. | 04-30-2009 |
| 20090179026 | APPARATUS FOR DETECTING DETERIORATION OF A HEATER AND APPARATUS FOR CONTROLLING ENERGIZATION OF A GLOW PLUG - The present invention provides, as one aspect, an apparatus for detecting deterioration of a heater. The apparatus includes a power source, a first voltage outputting unit that converts a current flowing into the heater to a voltage and outputs a first voltage value, a second voltage outputting unit that is connected to the power source and outputs a second voltage value corresponding to a voltage of the power source, and a comparison unit that compares the first voltage value with the second voltage value to determine whether the heater is deteriorated or not. | 07-16-2009 |
| 20090184105 | HEATER CONTROLLER OF EXHAUST GAS SENSOR - A reference heater energization delay time is established according to an engine conditions (shift range, cooling water temperature, intake-air temperature, ambient temperature, and oil temperature) during starting period. An extension delay time is established according to an engine condition after starting period. A final heater energization delay time is established by adding the extension delay time to the reference heater energization delay time. Until an elapsed time after starting period of engine reaches the final heater energization delay time, an energization of a heater of an exhaust gas sensor is inhibited. When the elapsed time after starting period of engine reaches the final heater energization delay time, the energization of the heater is started to heat a sensor element. | 07-23-2009 |
| 20090289051 | METHOD FOR CONTROLLING THE OPERATION OF A GLOW-PLUG IN A DIESEL ENGINE - A method is provided that includes, but is not limited to estimating the temperature (TGP,est) of the glow-plug (GP) in accordance with a first model of the glow-plug (GP) as a function of the detected values of the glow-plug voltage and current (VGP, IGP) and the sensed values of some input variables, such as the engine speed (ωE) and the engine temperature (TE), determining, in accordance with a second predetermined model of the glow-plug (GP), a desired value of the voltage (VGP,des) or power (PGP,des) to be supplied to the glow-plug (GP), as a function of a desired value of the glow-plug temperature (TGP,des), the estimated glow-plug temperature (TGP,est), and the sensed values of the input variables, and varying the duty-cycle of a pulse-width-modulated voltage (VPWM) applied to the glow-plug (GP), as a function of the calculated value of said desired voltage (VGP,des) or power (PGP,des). | 11-26-2009 |
| 20100116816 | Heated architectural panel system and method - Heated architectural panel temperature control systems and methods are provided for heating windows that are formed from heated architectural panels. The control system comprises the heated architectural panel that produces heat when connected to external AC power, a panel frame disposed around the panel periphery, and a temperature control circuit that is electrically connected to the window. The temperature control circuit, which may be disposed in the panel frame, controls the temperature of the panel by utilizing a Hall effect sensor and the panel temperature coefficient of resistance a. The panel may comprise insulated glass panels, laminated structures, or combinations thereof, where the window is disposed in an opening of a building. | 05-13-2010 |
| 20100116817 | Apparatus And Method For Detecting Condition Of Heating Element - A control for an electric water heater detects a condition of a heating element when the heating element is not being energized. A switching module is operable to interrupt power to the heating element, which de-energizes the heating element. A detector module detects the condition of the heating element when the heating element is de-energized. The detector module senses current flowing through the heating element and generates a detection signal that is indicative of the current. | 05-13-2010 |
| 20120168426 | Medical Device Heaters and Methods - A medical device having a heater with at least one heating element which has mains voltage applied to it by a heating control unit. The heating control unit includes a monitoring arrangement and a switching arrangement. The monitoring arrangement can recognize the zero crossings of the mains voltage, and the switching arrangement can switch the at least one heating element on or off in the zero crossing. The heating control unit controls the power of the heating by switching on and off of one or more half cycles of the mains AC voltage. | 07-05-2012 |
| 20120318783 | WARM-UP CONTROL DEVICE FOR VEHICLE - A warm-up control device for a vehicle includes a battery supplying electricity to a motor that drives a vehicle and can be charged with a current supplied from the exterior of the vehicle, and a heater generating heat that warms up the vehicle by the above current. The warm-up control device further includes a temperature acquisition unit acquiring a temperature of the battery, and a current distribution control unit increasing a heater supply current supplied to the heater as the temperature of the battery decreases. This can effectively utilize energy from an external power source for the charging and warming-up, thus improving the energy saving performance. | 12-20-2012 |
| 20130168380 | HEATING STRUCTURE AND METHOD FOR PREVENTING THE OVERHEAT OF HEATING LINE - A heating structure and method for preventing overheat of a heating line, where the heating line includes a sensing line and a heating wire in parallel connection. The sensing line has one end connected with a processor. The heating wire has one end connected sequentially with an over-current protection element and an alternating current power's one polarity and has another end connected sequentially with a switch and the alternating current power's another polarity. The processor controls the trigger circuit to trigger the switch to be in conducting condition. Thereby, under normal condition, the heating of the heating wire is in half-wave form. When abnormal signals from the sensing line are detected by the processor, the switch is controlled to let the alternating current pass through the heating wire in full-wave form to increase the current instantaneously and disconnect the over-current protection element to stop the heating. | 07-04-2013 |
| 20130186882 | TEMPERATURE CONTROL METHOD FOR A HEATING LINE - A temperature control method for a heating line comprises steps of: inputting continuous and changing pulse wave signals produced by the heating of a heating wire and reference pulse wave signals into a And-gate; utilizing the And-gate to obtain continuous synthesized pulse wave signals each of which has a pulse width that spans from a time point in which a logic high state begins to a time point in which the logic high state terminates; and controlling the control circuit to stop the heating of the heating wire when the time point in which the logic high state begins moves in relative to the time point in which the logic high state terminates and the pulse width of the synthesized pulse wave signals reaches a value preset by the processor, so as to keep the temperature within a preset and prevent overheat. | 07-25-2013 |
| 20130256296 | TEMPERATURE MEASUREMENT METHOD FOR A HEATED SENSOR - A method for determining the temperature of a sensor that comprises a heater is provided. The method includes the steps of applying a voltage to the heater and measuring the voltage applied to the heater and the current through the heater during a first time interval, and removing the applied voltage from the heater and leaving the heater unpowered for a second time interval. The method further includes the steps of calculating the resistance of the heater using the measured voltage and current, and determining the temperature of the sensor from the resistance using a predetermined relationship. The first time interval is selected to be sufficiently short in duration and the second time interval is selected to be sufficiently long so as to not significantly raise the temperature of the heater. The sensor temperature so determined can be used to perform diagnostic functions for a system that includes the sensor. | 10-03-2013 |
| 20130306621 | REAL-TIME CALIBRATION FOR WAFER PROCESSING CHAMBER LAMP MODULES - An apparatus, a system and a method are disclosed. An exemplary apparatus includes a wafer processing chamber. The apparatus further includes radiant heating elements disposed in different zones and operable to heat different portions of a wafer located within the wafer processing chamber. The apparatus further includes sensors disposed outside the wafer processing chamber and operable to monitor energy from the radiant heating elements disposed in the different zones. The apparatus further includes a computer configured to utilize the sensors to characterize the radiant heating elements disposed in the different zones and to provide a calibration for the radiant heating elements disposed in the different zones such that a substantially uniform temperature profile is maintained across a surface of the wafer. | 11-21-2013 |
| 20140124498 | BATTERY MANAGEMENT SYSTEMS AND METHODS - A battery management system comprises a circuit for controlling a heating component for a battery to prevent overheating of the battery. The circuit can include an RTD, a primary resistor and a secondary resistor, wherein respective reference voltages are compared to generate a signal. The signal can be filtered and converted to a digital signal for use to by a software programmable processing device (SPPD) to control a temperature of the battery via the heating component. Further, a method is provided that allows hardware only comparison of the nonlinear temperature representation to a fixed set point. | 05-08-2014 |
| 20140151362 | METHOD FOR PREHEATING AN OVEN APPLIANCE - An oven appliance and a method for preheating the same are provided. The oven appliance includes a broil heating element, a bake heating element, and a convection heating assembly with a convection heating element or a fan or both. The method includes initiating a preheat cycle having a first phase and a second phase. During the second phase of the preheat cycle, a power output of the convection heating element is reduced or an angular velocity of the fan is decreased or both. | 06-05-2014 |
| 20140251978 | METHOD FOR OPERATING A GLOW PLUG, AND GLOW PLUG CONTROL DEVICE - A method for operating a glow plug by means of pulse-width-modulated voltage pulses which are generated by controlling a load transistor, wherein a heating current flowing through the glow plug is measured and the duty cycle of the pulse-width-modulated voltage pulses is changed in accordance with values of the heating current. The heating current can be measured by means of a current measurement circuit, through which a sense current flows parallel to the load transistor, and the value of the heating current is calculated by multiplying a measured value of the sense current by a kILIS factor, wherein the temperature of the current measurement circuit is measured and the kILIS factor is defined in accordance with the measured circuit temperature. A glow plug control device is also disclosed. | 09-11-2014 |
| 20160081140 | POWER CONTROLLED HEATING SYSTEM - A method for heating an object, where the method includes the steps of choosing one or more elongated heating member or members, adapting one or more elongated heating member or members to form an elongated combined heating member having a length within a predetermined length interval and providing a predetermined constant current through the elongated combined heating member by connecting a constant current source to a first end and a second end of the elongated combined heating member, such that the combined heating member generating a power per unit length when the constant current flowing through the combined heating member between the first end and the second end. A device for heating an object and a kit of parts for assembling such a heating device is also disclosed. | 03-17-2016 |
| 20160169138 | OXYGEN SENSOR CONTROL RESPONSIVE TO RESISTANCE AND IMPEDANCE | 06-16-2016 |
| 20160377044 | APPARATUS AND METHOD FOR CONTROLLING POWER SUPPLY TO GLOW PLUG - Disclosed is a control apparatus for controlling power supply from a power source to a glow plug, including a plurality of semiconductor switching elements arranged to turn on and of power supply to the glow plug, a temperature fuse actuated by a temperature rise thereof to interrupt power supply to the semiconductor switching elements, a failure detection portion that detects the occurrence or non-occurrence of an ON failure in each of the semiconductor switching elements, and a control portion that performs drive control of the semiconductor switching elements. When the failure detection portion detects the ON failure in at least one of the semiconductor switching elements, the control portion increases the amount of heat generation of either the at least one of the semiconductor switching elements in which the ON failure is detected or any of the semiconductor switching elements in which the ON failure is not detected. | 12-29-2016 |
| 219498000 | Including follow-up servo means | 5 |
| 20090294434 | CONTROL SYSTEM FOR AN APPLIANCE - A control system for determining a magnitude of a voltage and controlling an application of the voltage to at least one load device of an appliance is disclosed. The control system includes a threshold-crossing circuit configured to receive a representation of the voltage and to provide an output signifying the voltage crossing a predetermined voltage threshold; and a processor which receives the output from the threshold-crossing circuit and determine the magnitude of the voltage based on the output and a line frequency based on the period of the output, determines an initial cooking profile from a group of cooking profiles based on a user selected initial setting for controlling the application of the voltage to the at least one load device, and adjusts the application of the voltage to the at least one load device based on the determined magnitude of the voltage. | 12-03-2009 |
| 20140069909 | ELECTRONIC HEATER AND METHOD FOR CONTROLLING THE SAME - Embodiments of the present disclosure disclose an electronic heater and a method for controlling the same and relate to the field of power electronic technologies, so as to reduce a maintenance cost of a spare part of the electronic heater. The electronic heater includes: an auxiliary power supply unit, a control unit, a power adjusting unit, and a heating source. The auxiliary power supply unit is configured to supply power to the control unit; the control unit is configured to output a detection voltage signal according to an input voltage of the heating source, output a power control signal according to a preset reference power value, and transmit the detection voltage signal and the power control signal to the power adjusting unit; and the power adjusting unit is configured to obtain an output power adjustment signal according to the detection voltage signal and the power control signal. | 03-13-2014 |
| 20140076885 | Adaptive Temperature Controller - The adaptive temperature controller system includes a device for measuring resistance, an electrically-conductive material, a power supply, and a device for controlling power. In operation, the controller determines the resistance of material at one or more temperatures and therefore determines the resistance of the material through a range of operating temperature. Based on such determination so long as voltage and power are known, the resistance of the material, and therefore its temperature, are known. As a result the voltage or power may be instantly varied to produce near infinite control over material temperature. | 03-20-2014 |
| 20140197154 | RESISTANCE DETERMINATION WITH INCREASED SENSITIVITY FOR TEMPERATURE CONTROL OF HEATED AUTOMOTIVE COMPONENTS - Electrical resistance of a heated component is determined for temperature control and monitoring. A voltage-representation signal, which is proportional to a voltage across a heater component, is received. A magnified voltage-representation signal is generated by determining a difference between a voltage baseline offset, which represents a minimum operating voltage of the heater component, and the voltage-representation signal. A current-representation signal, which is proportional to an electrical current passing through the heater component is received. A magnified current-representation signal is generated by determining a difference between a current baseline offset, which represents a minimum operating current of the heater component, and the current-representation signal. The magnified current-representation signal is modulated to generate a resistance-representation signal that is proportional to an amount of modulation that makes the magnified current-representation signal approximately equal to the magnified voltage-representation signal. | 07-17-2014 |
| 20140197155 | HEATER CONTROL APPARATUS - There is provided a heater control apparatus for controlling a heat generation amount of a heater including a heating element which is provided in a seat and which has a positive or negative temperature coefficient of resistance. The heater control apparatus includes a resistance detection unit which detects an electricity amount which corresponds to a resistance value of the heating element, and a control unit which increases or decreases an electric energizing amount supplied to the heating element according to the resistance value obtained by the resistance detection unit. | 07-17-2014 |
