Class 374/201 - Expanding fluid

Subclass of Class 374 - Thermal measuring and testing
Definition: Subject matter using the temperature responsive expansion
No. of patents: 29
Last issue date: 02/19/2008

Number	Title	Issue Date
7331709	Temperature measuring method using micro temperature sensing element By preliminarily measuring the gallium temperature and the length change of a temperature sensing element comprising a carbon nanotube having a continuous column of gallium contained therein, then heating the temperature sensing element installed in a subject to inc...	02/19/2008
7246942	Thermometer A liquid-in-stem thermometer comprising a stem and/or an envelope having a capillary bore extending along the length of the stem/envelopes, a bulb disposed at one end of the stem/envelope and in fluid communication with the said bore, a junction region between the c...	07/24/2007
7237947	Product and method for measuring temperature in flowing objects A temperature-indicating target length (15) of an expanding fluid thermometer (11) imbedded inside an object (91) moving in the flow (81) is achieved at a target point (21) along a flow and is measured by a measuring means at a loc...	07/03/2007
7097353	Method and device for indicating temperature Disclosed is a temperature indicating method and device. The device embodies a sealed tube containing a liquid and a float. The tube has markings on the exterior indicating temperature zones or, in the alternative, temperature gradients. The method disclosed include...	08/29/2006
7011445	Maximum/minimum thermometer This invention relates to maximum/minimum thermometer of the type comprising an expansion liquid, a transfer liquid and indexes for recording the maximum and minimum temperatures. Described in particular are new transfer liquids designed to replace conventionally us...	03/14/2006
6953437	Thermometer implants A thermometer implant (10), especially useful in medical diagnostic and therapeutic procedures, comprises a thermometer body (15) containing a fluid (13) which expands, and contracts to a fluid length (14) that indicates a target temperat...	10/11/2005
6813952	Pressure sensor device having temperature sensor A pressure sensor device having a temperature sensor includes a pressure sensor, a temperature sensor, a sensor casing for accommodating the pressure sensor and a connector pin for electrically connecting the pressure sensor to an outside circuit, and an inlet port ...	11/09/2004
6749336	Ionic liquid temperature sensor A temperature sensor having a capillary tube or stem, sealed at both ends, with a thin bore defined therein is applied to the measurement of temperatures having a range of about −100° to +400° Centigrade. A bulb comprising a liquid reservoir, is provided at one ...	06/15/2004
6250800	X-ray imaged implanted thermometers Expanding fluid thermometers are implanted in a body--for example in and adjacent to a cancerous tumor--and are read by x-ray imaging....	06/26/2001
6086249	Method and apparatus for simulating and indicating the temperature of the winding of an electric power transformer The invention concerns a method to reproduce and display the winding temperature of an electric power transformer by deriving the measured and displayed temperature from the temperature of the coolant cooling the power transformer and the temperature of a...	07/11/2000
6019509	Low melting gallium, indium, and tin eutectic alloys, and thermometers employing same A clinical thermometer with maximum function with a non-toxic eutectic Ga alloy as measuring fluid 14 inside a measuring tube 13 which provides adhesion forces larger than the cohesion forces inherent in liquid 14. To reach the maximum function, therefore...	02/01/2000
5800060	Clinical thermometer A clinical thermometer registers the maximum temperature reached and uses as the thermometric fluid a non-toxic gallium/indium alloy which adheres to the walls of the thermometer measuring tube, the adhesive force being greater than the internal cohesive ...	09/01/1998
5769542	Electronic industrial thermometer The electronic industrial thermometer combines a conventional industrial thermometer with a thermocouple temperature detector thus providing a thermometer where the temperature can be read visually at the mounting site and where the detector electronicall...	06/23/1998
5664885	Electronic industrial thermometer The electronic industrial thermometer combines a conventional industrial thermometer with an electrical resistance temperature detector thus providing a thermometer where the temperature can be read visually at the mounting site and where the detector ele...	09/09/1997
5404834	Temperature indicating device An indicator device indicates that the temperature in a location in which the device is placed has exceeded a predetermined maximum temperature value. The he device includes a liquid receptacle comprising frangible bulb portion and an integral capillary p...	04/11/1995
5290102	Tunnel effect measuring systems and particle detectors Methods and apparatus for measuring gravitational and inertial forces, magnetic fields, or wave or radiant energy acting on an object or fluid in space provide an electric tunneling current through a gap between an electrode and that object or fluid in sp...	03/01/1994
5215378	Dual temperature indicator A dual temperature indicator providing visual indications when exposed to predetermined high or low temperatures. The indicator has a bulb with a capillary tube and an attached high temperature indicator structure. The bulb has a first liquid which also f...	06/01/1993
5044170	Refrigeration system and a thermostatic expansion valve best suited for the same In a control method for a refrigeration system having a compressor, a condenser, a thermostatic expansion valve, and an evaporator, the amount of a refrigerant flowing into the evaporator is increased at a temperature lower than a predetermined evaporatin...	09/03/1991
4989989	Hydraulic sensor for quench detection and location in superconductors The present invention provides a hydraulic sensor for quench detection and location in a superconductor, and particularly a superconductor used to form an inductor or a magnet. The sensor consists of an insulating tube (1) adjacent to and preferably co-wo...	02/05/1991
4968153	Inside/outside temperature indicating device for motor vehicles This disclosure relates to an indoor-outdoor thermometer adapted to be used on motor vehicles. The structure, preferably of transparent plastic material, also includes the concept of insulating material in order to improve the accuracy of temperature meas...	11/06/1990
4586383	Electronic pressure gauge and flow meter A pressure gauge includes a cylindrical member having a flexible plate covering one end. Center flex of the plate is used to measure the force applied by fluid pressure. A low pressure transducer electrically measures the applied force. Pressure is transm...	05/06/1986
4560288	Thermometer for measuring cryogenic temperatures A thermometer comprises a first sample space having a liquefiable gas sealed therein and a second sample space partitioned from the first sample space by a pressure difference detecting element and having a liquefiable gas sealed therein in conjunction wi...	12/24/1985
4526480	Fluid density temperature measurement apparatus and method Fluid density measuring apparatus and method for directly measuring fluid density or indirectly measuring pressure, temperature, acceleration, flow velocity, differential pressure and other parameters affecting the apparatus. The apparatus includes a gene...	07/02/1985
4506371	Underwater thermometer and method of making The underwater thermometer includes a transparent block, preferably formed of an acrylic plastic, having a planar rear surface provided with a longitudinal recess adapted to receive a fluid and tube type temperature indicator, with an enlargement at one e...	03/19/1985
4443120	Remote control temperature sensor with expansible material The invention relates to a remote control temperature sensor having a capsule containing an expansible material and a capillary tube which connects the capsule to a radiator valve or the like. The temperature sensor has a housing in which the capsule in r...	04/17/1984
4201089	Temperature measuring device for transformers and reactors A thermometer for measuring the temperature of at least one selected portion of an electrically-operated device disposed in a container includes a first upwardly extending conduit adapted to communicate interiorly with the container, and an indicating cap...	05/06/1980
4179927	Temperature sensing device A device for sensing temperature changes at an object, specifically within a transformer or the like, is disclosed herein. This device utilizes an electrically non-conductive sensor including a temperature responsive substance having the characteristic of...	12/25/1979
4083250	Audible alarm food thermometer A portable food thermometer affording an audible alarm at a preset cooking completion temperature. A water reservoir defined within a two-part housing is fillable by the user in advance of use. An elongated sensing probe insertable in the food is secured ...	04/11/1978
4036060	Temperature measuring process and probe A process and a probe for measurement of temperatures of a given medium and also for measurement of the density of electromagnetic power of a medium at a given temperature is provided wherein a beam of light is transmitted into a capillary enclosure conta...	07/19/1977

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Class 374/201 - Expanding fluid