Class 374/210 - MISCELLANEOUS

Subclass of Class 374 - Thermal measuring and testing
Definition: Subject matter not classifiable in any of the preceding
No. of patents: 26
Last issue date: 01/22/2008

Number	Title	Issue Date
7321846	Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro...	01/22/2008
7290450	Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow...	11/06/2007
7254518	Pressure transmitter with diagnostics In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sens...	08/07/2007
7091725	Fast, high-resolution, indirect measurement of a physical value A measurement method or system for measuring a physical value comprises, during a same clock cycle, forming an input signal, a reference signal and an offset signal, the input signal including a parasitic value and a useful measurement value. A relationship between ...	08/15/2006
7085610	Root cause diagnostics An industrial process diagnostic apparatus is provided which can identify a source, or “root cause”, of an aberration in an industrial process. A plurality of process configuration models are provided which each represent a physical (or actual) implementation of...	08/01/2006
7044633	Method to calibrate a chip with multiple temperature sensitive ring oscillators by calibrating only TSRO The present invention provides a temperature sensitive ring oscillator (TSRO) in an integrated circuit. A temperature measuring device, such as a thermal resistor, is proximate the TSRO, which shares a substantially similar temperature. A memory is employable for st...	05/16/2006
7046180	Analog-to-digital converter with range error detection A circuit includes a multiplexer, an analog-to-digital converter, and a processor that compares a sequence of digital outputs from the analog-to-digital converter to a sequence of normal ranges that correspond with the digital outputs in order to provide an error ou...	05/16/2006
7018800	Process device with quiescent current diagnostics A process device for use on an industrial process control system includes a quiescent current sensor configured to sense quiescent current draw of the process device. Diagnostic circuitry determines a diagnostic condition of the process device as a function of the s...	03/28/2006
7010459	Process device diagnostics using process variable sensor signal A diagnostic device for use in a process control system receives a sensor signal related to a process variable of a process sensed by a process variable sensor. A signal preprocessor provides a sensor power signal output as a function of a frequency distribution of ...	03/07/2006
6970003	Electronics board life prediction of microprocessor-based transmitters A field device includes circuitry to successively measure a parameter related to current drawn by electronics of the field device. The measurements are provided to a prediction engine which calculates a diagnostic output based upon the plurality of current-related m...	11/29/2005
6964518	Device and system for monitoring internal temperature of inaccessible or moving parts A device and a system for measuring temperature in an inaccessible and/or movable mechanical part. The device comprises a temperature-sensitive clement which can be installed inside the movable part and which is designed to emit a signal containing information on th...	11/15/2005
6920799	Magnetic flow meter with reference electrode An magnetic flow meter is provided which includes a reference electrode configured to electrically couple process fluid flowing within a flowtube of the flow meter. The reference electrode is adapted to measure potential of the process fluid. A current limiter is co...	07/26/2005
6907383	Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ...	06/14/2005
6193411	Calibrator for contact and non-contact thermometer The present invention relates to a calibrator for contact and non-contact thermometers, comprising a metallic body which comprises two opposite end surfaces, wherein at least a first type of hole which is drilled into the metallic body for the insertion o...	02/27/2001
5969606	Food storage apparatus and methods and systems for monitoring a food item A food storage apparatus (22) comprises a container (26) to contain a food item (20), a humidity sensor (34) to sense a humidity within the container (26), and a transmitter (66) responsive to the humidity sensor (34) to transmit a signal based upon the h...	10/19/1999
5707152	Method for using reusable pipe union and pipe cap assembly for wide thermal cycling A method for sealing a leak from the end of a thermowell pipe comprising the steps of providing a hollow fitting member having a first end and a second end. The second end having an annular tapered ridge extending therefrom and attaching the first end of ...	01/13/1998
5700090	Temperature sensor transmitter with sensor sheath lead A temperature transmitter in a process control loop comprises a temperature sensor and a transmitter circuit. The temperature sensor includes a sensor sheath and a sensor element positioned within the sensor sheath. At least one element lead is coupled to...	12/23/1997
4996104	Temperature-sensitive materials and devices A device for indicating whether a rise in temperature above a predetermined value has occurred includes a support member, such as a label, on which a temperature-sensitive material is deposited. The material includes a large number of fracturable microcap...	02/26/1991
4941753	Absorption microscopy and/or spectroscopy with scanning tunneling microscopy control High resolution absorption microscopy, spectroscopy and similar applications are implemented by providing for a measurement tip which is maintained spaced from a sample under investigation sufficiently close so as to equalize thermal levels in the tip and...	07/17/1990
4933951	Minimum thermal environment sensor A planar thermal radiator for use in outer space is disclosed. The radiator is adapted to rotate on two mutually perpendicular x and y axes which are in x and y planes respectively that are perpendicular to each other and to the planar surfaces of the rad...	06/12/1990
4929093	Fire detector having a protective cover A fire detector for detecting a fire occurrence, including a temperature sensor comprising a thermistor or, a platinum wire, a protective cover enclosing the temperature sensor and protecting the temperature sensor from external impacts, and a protector p...	05/29/1990
4923308	Process for determining the distribution of temperatures at surfaces of high temperature members A process for determining a relative temperature distribution at a surface of a high temperature member to be used in a gas containing oxygen at high temperatures is disclosed. The process comprises the step of determining the relative surface temperature...	05/08/1990
4744671	Instrument for measuring electric current A simple and inexpensive instrument for measuring electric current that may be mounted on existing current-carrying conductors to provide a ready visible indication of the current flowing through the conductor. The instrument comprises an outer transparen...	05/17/1988
4603981	Device for regulating or limiting at least one temperature value or a temperature range of radiation or contact heaters of electric cooking apparatus A device for regulating or respectively limiting the temperature provided an electric heating element in cooking apparatus. At least one temperature sensor is provided for regulating or respectively limiting the temperature, the sensor having a rod of hi...	08/05/1986
4538464	Method of measuring reactive acoustic power density in a fluid A method for determining reactive acoustic power density level and its direction in a fluid using a single sensor is disclosed. In the preferred embodiment, an apparatus for conducting the method, which is termed a thermoacoustic couple, consists of a sta...	09/03/1985
4491427	Reusable thermal cycling clamp A reusable metal clamp 10 for retaining a fused quartz ampoule 25 during temperature cycling in the range of 20° C. to 1000° C. A compressible graphite foil 27 having a high radial coefficient of thermal expansion is interposed between the fused quartz ...	01/01/1985

PatentStorm

Bizarre Patents

PatentStorm News

Class 374/210 - MISCELLANEOUS