U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 73/590 - In detection of a liquid reaction, a chemical reaction, or a nuclear reaction


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein a determination is made of the quality,
No. of patents: 76
Last issue date: 02/01/2011


1    
NumberTitleIssue Date
7878064Analytical apparatus with array of sensors and calibrating element
Analytical apparatus for analysing at least one substance has an array of sensors (1) driven by an electronic driver (14) for operating each sensor. The signals produced by the sensors are received by a receiver (82), and the apparatus includes ...
02/01/2011
7802479Stirring apparatus, abnormality determining method of same, and analyzer
A stirring apparatus includes an acoustic wave generating unit that is provided in a vessel keeping a liquid and generates an acoustic wave toward the liquid, the liquid being stirred by the acoustic wave; a driving unit that drives the acoustic wave generating unit...
09/28/2010
7765871System and method for gas analysis using photoacoustic spectroscopy
A system and method for analyzing a target analyte gas concentration using a photoacoustic spectroscopy cell comprising: i) a modulatable light source which provides optical radiation at an absorption wavelength of a target analyte; ii) a r...
08/03/2010
7578191Reactor jet pump sensing line frequency measurement
A frequency measuring device measures a natural frequency of a reactor jet pump sensing line supported by a sensing line support bracket in a nuclear reactor. The frequency measuring device includes a base member, a sensing line clamp attached to the base member tha...
08/25/2009
7443079Method and apparatus for cavitation threshold characterization and control
An apparatus and method for characterizing cavitation that occurs in a fluid exposed to acoustic energy. The apparatus comprises a vessel for holding the fluid; an acoustic energy generating means for generating acoustic energy, the acoustic energy generating means ...
10/28/2008
7331232Measurement method and biosensor apparatus using resonator
A measurement method and a biosensor apparatus using a resonator with which it is not necessary to agitate a sample solution in a cell and even if the amount of the sample solution is very small the influence of pressure waves is greatly reduced and extremely easy a...
02/19/2008
7322243Acoustic wave etch rate sensor system
An acoustic wave sensor system for monitoring the etch rate or etch ability of a selective material has an acoustic wave sensing device having a piezoelectric substrate and at least one electrode coupled to the substrate for generating a propagating acoustic wave an...
01/29/2008
7293450Oil quality sensor structure for permanent applications
An oil quality sensor system comprise an acoustic wave viscosity and an etch rate sensor. The etch rate sensor system includes a piezoelectric substrate and one or more sensing layers configured upon the piezoelectric substrate. A layer of gold is generally configur...
11/13/2007
7287431Wireless oil filter sensor
A wireless oil filter sensing system includes an oil filter and a sensing mechanism that is connectable to the oil filter. The sensing mechanism includes one or more acoustic wave sensing elements and at least one antenna that communicate with the acoustic wave sens...
10/30/2007
7267009Multiple-mode acoustic wave sensor
A multiple-mode acoustic wave sensor apparatus includes an acoustic wave device comprising a piezoelectric substrate and at least one electrode on the substrate. When such sensor is used in a wireless configuration, a plurality of antennas can be configured on the s...
09/11/2007
7243548Surface wave chemical detector using optical radiation
A surface wave chemical detector comprising at least one surface wave substrate, each of said substrates having a surface wave and at least one measurable surface wave parameter; means for exposing said surface wave substrate to an unknown sample of at least one che...
07/17/2007
7219536System and method to determine oil quality utilizing a single multi-function surface acoustic wave sensor
A method and system for detecting oil quality. The quality of engine oil can be determined utilizing an acoustic wave sensor to obtain viscosity and corrosivity data associated with the engine oil. The acoustic wave sensor is coated with a material that selectively ...
05/22/2007
7210354Sensing system for measuring cavitation
The invention provides a sensing system for sensing process conditions within an ultrasonic process tank that includes process liquid, the liquid being subjected to ultrasound produced by transducers coupled to a generator. The sensing system includes an enclosure f...
05/01/2007
7207222Electromagnetic piezoelectric acoustic sensor
The invention relates to an electromagnetic piezoelectric acoustic sensor (EMPAS). The sensor comprises a piezoelectric sensor plate spaced apart from an induced dynamic electromagnetic field, such as from an electromagnetic coil through which AC current flows. The ...
04/24/2007
7204128Engine wear and oil quality sensor
A viscosity and corrosivity sensor apparatus includes a substrate upon which one or more electrodes are configured. The electrode(s) are exposed to a liquid, such as automotive oil. An oscillator can be connected to the electrode, wherein the oscillator assists in p...
04/17/2007
7170607Gas identification device
An optical gas identification system including a measuring cell (20), a modulated light source (10), a microphone (22), and a signal amplifier (30). The light source (10) comprises a plurality of laser diodes (12) and can se...
01/30/2007
7162924Method and system for analyzing cavitation
A method for analyzing cavitation in a component includes establishing an energy level associated with a system condition associated with the component and analyzing cavitation in response to said energy level. ...
01/16/2007
7159463Sensitive and selective method and device for the detection of trace amounts of a substance
A piezoelectric crystal element and a sensor utilizing the same are presented for use in a sensor device for identifying at least one foreign material from environment. The crystal element comprises at least one crystal resonator in the form of an inverted mesa stru...
01/09/2007
7114375Process monitoring and particle characterization with ultrasonic backscattering
A fermention process is monitored by detecting ultrasound backscattered from the cells as a function of time. A transducer 46 is placed in a fermentor 30 and transmits ultrasound towards a reflecting surface 50. The transducer receives that port...
10/03/2006
7080556Ultrasonic apparatus and methods for the monitoring of melting, mixing and chemical reaction processes
Ultrasonic apparatus and associated methods for the in-line monitoring of melting, mixing and chemical reaction processes of materials inside an enclosed chamber having rotating elements associated therewith are presented. The chamber may be heated and the rotating ...
07/25/2006
6954146Method for determining a state of a road during the driving mode of a motor vehicle
In a method for determining the state of a road during driving of a motor vehicle, the sound which is generated when a vehicle tire rolls on an underlying surface is sensed. A frequency signal is determined by means of a sound level signal which describes the sound,...
10/11/2005
6944097Method and device for measuring cavitation
A method, probe, and system for detecting presence of cavitation in a fluid and measuring cavitation density and intensity of a specific locale in the fluid. A first cavitation void and associated energy perturbation, produced in a first fluid, moves within the firs...
09/13/2005
6941819Apparatus and method for determining the dynamic mechanical properties of a cement sample
An apparatus for determining dynamic mechanical properties of a cement sample. The apparatus includes an isolator located within a cavity defined by a body. The isolator has an attached end that engages the body proximate a narrow end of the cavity. A space between ...
09/13/2005
6923067Defect type classifying method
The invention relates to a method for non-destructive testing of materials, in which at least two differently guided waves (modes) are produced in the solid body, each at at least one specified angle, the measured reflection values are placed in relation to a refere...
08/02/2005
6832506Apparatus and method for measuring a property of a liquid
An apparatus for use in characterising liquids by obtaining a fingerprint of the liquid. This allows one to measure a property of a liquid, and thereby distinguish between liquids. The apparatus comprises means for directing acoustic energy at a sample of the liquid...
12/21/2004
6799465Shock wave vibration generator for measuring or testing or imaging purposes
A shock wave vibration generator system is disclosed and includes methods and apparatus that sever objects and thereby produce shock waves. The shock waves then may be focused and coupled to objects for measuring or testing. The shock wave generator may be utilized ...
10/05/2004
6694799Method and apparatus for detection of particles
The invention includes a particle detection system that detects bioparticles in a sample utilizing a sensor device that receives photoacoustic signals from a sample. The invention includes a system for distinguishing biologically active particles from non...
02/24/2004
6602714Viscosity and mass sensor for the high-throughput synthesis, screening and characterization of combinatorial libraries
Workstation, apparatuses and methods for the high-throughput synthesis, screening and/or characterization of combinatorial libraries. The invention relates to an array, which permits various high-throughput methods for synthesis, screening and/or characte...
08/05/2003
6589798Method and system for analyte determination
The invention relates to methods, kits and systems for determining an analyte in a liquid sample as well as the use thereof for concentration analysis and screening purposes. In one method, a specific binding partner to the analyte is permitted to compete...
07/08/2003
6526828Sensitive and selective method and device for the detection of trace amounts of a substance
A piezoelectric crystal element and a sensor utilizing the same are presented for use in a sensor device for identifying at least one foreign material from environment. The crystal element comprises at least one crystal resonator in the form of an inverte...
03/04/2003
6490916Method and system of fluid analysis and control in a hydrocarbon well
A system and method of fluid analysis in a hydrocarbon borehole is disclosed. Acoustic energy is emitted into the production fluid downhole at a level which causes a phase transition in the fluid. The pressure associated with the phase transition is deter...
12/10/2002
6487915Method for characterizing residual stress in metals
A method is provided for measuring the residual stress in metals. The method includes the steps of drilling one or more holes in a metal workpiece to a preselected depth and mounting one or more acoustic sensors on the metal workpiece and connecting the s...
12/03/2002
6266996Simple and inexpensive method and device for measuring concentration and rate of change of a crystal etchant gas, such as HF or DF gas
A method and device for determining concentration and rate of change of concentration of a gas having ability to act as crystal etchant, such as hydrofluoric acid (HF) or deuterium fluoric acid (DF) gas. A crystal 22 is placed in a chamber and subjected t...
07/31/2001
6128949Phase change analysis in logging method
An improved method of fluid analysis in the borehole of a well. A fluid sampling tool is fitted with a pumpout module that can be used to draw fluids from the formation, circulate them through the instrument, and then expel this fluid to the borehole. It ...
10/10/2000
6118104Method and apparatus for boil state detection based on acoustic signal features
The present invention provides a method of determining the boil states of a liquid as measured by an acoustic sensor which measures the acoustic signal generated by the liquid as it is heated. The acoustic signal is smoothed and a first derivative of the ...
09/12/2000
6076406Integrated sensing platform and method for improved quantitative and selective monitoring of chemical analytes in both liquid and gas phase
By measuring two or more physical parameters of a thin sensing film which are altered when exposed to chemicals, more effective discrimination between chemicals can be achieved. In using more than one sensor, the sensors are preferably integrated on the s...
06/20/2000
6029520Ultrasonic monitoring of resin curing in a press for the production of particle board and similar materials
The technology used in the present invention is acousto-ultrasonics (AU), in which a transmitted signal, at a controlled frequency is injected into a specimen with one transducer and received at another location by another transducer, permitting evaluatio...
02/29/2000
5911159Resin cure monitoring
Method and apparatus for monitoring curing in a resin. Acoustic, ultrasonic waves are propagated through a waveguide disposed through a quantity of resin while the resin is curing. The waves are transmitted and received by transducers arranged in an acous...
06/08/1999
5853994Particle agglutination assay system
A system for assaying a fluid sample for one or more types of analytes, which employs at least one class of finely divided polystyrene spheroidal particles, each class being limited to a predetermined specific narrow range of particle diameters, the parti...
12/29/1998
5827952Method of and apparatus for determining deposition-point temperature
Acoustic-wave sensor apparatus and method for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in c...
10/27/1998
1    
 
Sign InRegister
Username  
Password   
forgot password?