Thermal measuring and testing inventions 03/08

20080069178 - Compact thermal conductivity detector: A thermal conductivity detector comprises a housing having an internal cavity, a fluid inlet, a fluid outlet, a first bore and a second bore. The thermal conductivity detector further comprises a thermistor having a first electrical lead and a second electrical lead, a first contact pin in electrical communication with... Agent: Atk C/o Vidas, Arrett & Steinkraus, P.A.

20080069176 - Digital temperature sensors and calibration thereof: A method for calibrating a digital temperature sensor circuit, the circuit comprising an analogue temperature sensing means, an internal reference voltage source and an analogue-to-digital converter (ADC). The ADC is arranged to receive respective signals from the analogue temperature sensing means and the reference voltage source and output a digital... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080069177 - Method of detecting leaks of fluoroolefin compositions and sensors used therefor: Disclosed are a method of detecting a leak of fluoroolefin compositions and sensors used therefor. In particular, the method is particularly useful for detecting a leak of a fluoroolefin refrigerant composition from a cooling system of an automotive vehicle. Such fluoroolefin refrigerant compositions have double bond structures which make them... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20080069179 - Method for operating a sensor arrangement: A method is disclosed for operating a sensor arrangement having at least one measuring sensor and at least one reference sensor for recording the same physical variable, and having an analysis unit electrically connected thereto, with a characteristic of the sensor arrangement being recorded in an initialization phase from measured... Agent: Buchanan, Ingersoll & Rooney PC

20080069180 - Fiber optic temperature sensing system using a hemispherical phosphor: The present invention provides a fluorescence-based fiber optic temperature sensing system employing a probe with a hemispherically shaped phosphor attached thereto. The probe set forth herein not only produces fluorescence efficiently, but is also easily fabricated.... Agent: Derek Djeu

20080063026 - Thermochromic washer for monitoring performance or integrity of electrical connections: Washers partially coated with a thermochromic material are incorporated into bolted electrical connections to monitor or record temperature changes undergone by the electrical connections as indications of the performance or integrity of the electrical connections. For monitoring ongoing performance, the color changes undergone by the thermochromic coated washers can be... Agent: Stephen B. Salai, Esq. Harter, Secrest & Emery LLP

20080063027 - Precision temperature sensor: A temperature sensor circuit in accordance with an embodiment of the present invention includes a temperature sensing element operable to provide a temperature voltage that is linearly related to the absolute temperature of the circuit. The temperature sensing element includes a first bi-polar junction transistor and a second bipolar junction... Agent: Ostrolenk Faber Gerb & Soffen

20080056328 - Apparatus and method for determining the amount of time until a desired temperature is reached: A method and an apparatus capable of determining the amount of time remaining before an item such as food reaches a desired temperature such as a cooking temperature or approximately room temperature. In at least one embodiment, determining the amount of time remaining is based at least on the elapsed... Agent: Cahn & Samuels LLP

20080056329 - Color-retaining excess-temperature exposure indicator: An excess temperature indicator can provide a visual indication of past exposure of perishable, maturing and other host products to an elevated temperature exceeding a threshold temperature. The indicator can have an upper layer provided with a viewing window and a wick attached to the upper layer. A reservoir of... Agent: Roger Pitt Kirkpatrick & Lockhart Preston Gates Ellis LLP

20080056330 - Temperature detecting device, fixing device, and image forming apparatus: A pressure thermistor has a retention part, a film retained on the lower surface of the retention part in such a way that both surfaces of the film are exposed, and a thermosensitive device attached to the film. One surface of the film is rough and faces a pressure roller.... Agent: Buchanan, Ingersoll & Rooney PC

20080056331 - Sensor device: A sensor device includes a flexible first film that includes structured conductive traces. The sensor device also includes a probe electrically connected to the structured conductive traces. The probe is on a first surface of the first film and connected to the first surface of the first film. The sensor... Agent: Fish & Richardson PC