Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7360403 | Measurement and control of asphaltene agglomeration in hydrocarbon liquids A method is provided for measuring the agglomerative state of asphaltenes in oil by applying an acoustic signal to the oil, detecting the scattered acoustic energy and using this detected signal to determine the relative particle size distribution of the asphaltene ... | 04/22/2008 |
| 7359803 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations X1-XN disposed axially along a pipe 14 for measuring at least one par... | 04/15/2008 |
| 7353709 | Method and system for determining material properties using ultrasonic attenuation A method and system is disclosed for determining a property of an object by measuring ultrasonic attenuation. With the proposed method, a measured ultrasonic interaction signal of the object is compared with a reference signal produced using the same generation and ... | 04/08/2008 |
| 7353695 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 04/08/2008 |
| 7331233 | Method and apparatus for ultrasonic sizing of particles in suspensions A particle size distribution monitor, comprising: a transducer adapted to be a source of ultrasonic energy and positioned in contact with a suspension containing a percent by volume of particles in a liquid, the transducer transmitting ultrasonic energy through the ... | 02/19/2008 |
| 7288293 | Process for plasma surface treatment and device for realizing the process A process for plasma treatment of an object's surface to be treated comprising the creation of a plasma, the application of the plasma to the surface to be treated, and the excitation of the surface to be treated, such that it vibrates and undulates. The energy for ... | 10/30/2007 |
| 7263874 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 09/04/2007 |
| 7261005 | Magneto-elastic resonator torque sensor A magneto-elastic torque sensor and system include a substrate and a magneto-elastic sensing component formed from or on the substrate. The magneto-elastic sensing component and the substrate together form a magneto-elastic torque sensor, which when subject to a str... | 08/28/2007 |
| 7261861 | Hemostasis analyzer and method A method and device for blood hemostasis analysis is disclosed. A blood sample is displaced to reach a resonant state. The resonant frequency of the blood sample is determined before, during and after a hemostasis process. The changes in the resonant frequency of th... | 08/28/2007 |
| 7254990 | Machine fluid sensor A sensor for sensing one or more properties of a vehicle fluid has a tuning fork resonator adapted to contact the fluid. The tuning fork resonator comprises two tines and is operable to oscillate so that the two tines move in opposite phase at a frequency of less th... | 08/14/2007 |
| 7257518 | Fundamental method and its hardware implementation for the generic prediction and analysis of multiple scattering of waves in particulate composites This invention relates to a method and apparatus for the fundamental prediction, analysis, and parametric studies of the interaction of multiply scattered waves of any nature (acoustic, electromagnetic, elastic) with particulate composites (solid or fluid particulat... | 08/14/2007 |
| 7223237 | Implantable biosensor and methods for monitoring cardiac health The ability to continuously monitor concentrations of any of a plurality of blood-borne substances, such as proteins, improves patient monitoring and overall care through early detection of cardiac threats. Ultrasound-based technology used in analytical chemistry to... | 05/29/2007 |
| 7182913 | Sample retention apparatus for use in measuring hemostasis A sample retention apparatus for use in a device for measuring hemostasis. The device for measuring hemostasis may include a sample articulation apparatus including a guide shaft coupled for articulating motion to a drive motor, a sample carrier secured to and axial... | 02/27/2007 |
| 7114375 | Process 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 |
| 7113876 | Technique and electronic circuitry for quantifying a transient signal using threshold-crossing counting to track signal amplitude Circuitry adapted for carrying out associated techniques for: (a) calculating a damping factor, e.g., a damping ratio represented by ζ, or a quality factor Q, where ζ≈1/2Q, for a transient signal received, having been emitted from a resonator-type sensor element... | 09/26/2006 |
| 7080556 | Ultrasonic 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 |
| 7075439 | Marker for remote detection of articles A marker for remote detection of articles has an elongated sensor element with magnetic and electric properties. The elongated sensor element provides an electromagnetic reply signal when receiving an electromagnetic input signal. The elongated sensor element modula... | 07/11/2006 |
| 7043969 | Machine fluid sensor and method A method for analyzing a fluid contained within a machine, comprising the steps of providing a machine including a passage for containing a fluid; placing a sensor including a mechanical resonator in the passage; operating the resonator to have a portion thereof tra... | 05/16/2006 |
| 6959589 | Ultrasound analysis of slurries An autoclave reactor allows for the ultrasonic analysis of slurry concentration and particle size distribution at elevated temperatures and pressures while maintaining the temperature- and pressure-sensitive ultrasonic transducers under ambient conditions. The react... | 11/01/2005 |
| 6945096 | Measurement and control of asphaltene agglomeration in hydrocarbon liquids A method is provided for measuring the agglomerative state of asphaltenes in oil by applying an acoustic signal to the oil, detecting the scattered acoustic energy and using this detected signal to determine the relative particle size distribution of the asphaltene ... | 09/20/2005 |
| 6941819 | Apparatus 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 |
| 6912891 | Characterization of fluids using ultrasound A method of using ultrasonic reflectance to characterize physical properties of fluids, particularly food solutions. In general, the method comprises the steps of: (a) generating longitudinal ultrasonic waves, (b) coupling the transducer to the fluid being investiga... | 07/05/2005 |
| 6874355 | Method and device for monitoring and controlling a process A method and device for monitoring and controlling a pharmaceutical, chemical or food process, in which the biological activity and/or the bio-mass of micro-organisms in the process is monitored, and in which the state of the process is detected by monitoring viscos... | 04/05/2005 |
| 6874356 | Method and device for monitoring and controlling a process A method and device for monitoring and controlling a pharmaceutical, chemical or food process, in which the biological activity and/or the bio-mass of micro-organisms in the process is monitored, and in which the state of the process is detected by monitoring viscos... | 04/05/2005 |
| 6773923 | Induced aggregation and agglutination of platelets The invention relates to a method for measuring the aggregation or agglutination of platelets, where a reaction mixture is mixed in a first reaction phase, and is mixed less vigorously or not at all in a second reaction phase following the first, and the measurement... | 08/10/2004 |
| 6688162 | Magnetoelastic sensor for characterizing properties of thin-film/coatings An apparatus for determining elasticity characteristics of a thin-film layer. The apparatus comprises a sensor element having a base magnetostrictive element at least one surface of which is at least partially coated with the thin-film layer. The thin-fil... | 02/10/2004 |
| 6537819 | Method and apparatus for measuring hemostasis A method and apparatus are provided for measuring hemostasis. The apparatus includes a torque sensing column having a torque sensing element and a drive ring disposed around a body of the column and in registration with the column so as to allow rotation ... | 03/25/2003 |
| 6225126 | Method and apparatus for measuring hemostasis A method and apparatus are provided for measuring hemostasis. The apparatus includes a torque sensing column having a torque sensing element and a drive ring disposed around a body of the column and in registration with the column so as to allow rotation ... | 05/01/2001 |
| 6200532 | Devices and method for performing blood coagulation assays by piezoelectric sensing A device and method for performing blood coagulation assays, particularly prothrombin times and activated partial thromboplastin times and other clotting parameters are disclosed. The device comprises a disposable strip (containing a sample inlet for samp... | 03/13/2001 |
| 6192744 | Robust transducer for viscoelastic measurement A transducer for use in a viscoelastic analyzer of the type in which a mechanical probe member is immersed in a fluid or gel and driven to impart a desired oscillating motion to such fluid or gel whose viscoelastic properties are to be determined includin... | 02/27/2001 |
| 6109098 | Particle size distribution and zeta potential using acoustic and electroacoustic spectroscopy A device is described which combines Acoustic and Electroacoustic spectrometers to characterize both particle size distribution and zeta potential for concentrated dispersed systems. The Acoustic Spectrometer measures both attenuation and sound speed for ... | 08/29/2000 |
| 6035706 | Method and apparatus for determining the wax appearance temperature of paraffinic petroleum oils A method and apparatus for determining the wax appearance temperature of paraffinic petroleum oils which comprises measuring and plotting the density of the paraffinic oil as a function of temperature at constant pressure, with the wax appearance temperat... | 03/14/2000 |
| 5992223 | Acoustic method for determining the static gel strength of a cement slurry An acoustic method and system for determining the static gel strength of one or more cement slurry samples at wellbore temperatures and pressures. The cement slurry sample to be tested is maintained in a static condition inside an acoustic pressure vessel... | 11/30/1999 |
| 5969237 | Measurement and control of asphaltene agglomeration in hydrocarbon Liquids A method is provided for measuring the agglomerative state of asphaltenes in a process flow stream of oil by applying an acoustic signal to the oil, detecting the scattered acoustic energy and using this detected signal to determine the relative particle ... | 10/19/1999 |
| 5895842 | Robust transducer for viscoelastic measurement A transducer for use in a viscoelastic analyzer of the type in which a mechanical probe member is immersed in a fluid or gel and driven to impart a desired oscillating motion to such fluid or gel whose viscoelastic properties are to be determined includin... | 04/20/1999 |
| 5892144 | Biosensor A biosensor (10) for measuring changes in viscosity, density and/or mass in a fluid to be examined, for example a blood coagulation sensor or immunoassay system. According to the invention, the reagents necessary for the test are contained in a support (1... | 04/06/1999 |
| 5854423 | Apparatus and method for assessment of visco-elasticity and shear adherence strength properties of blood clots The present invention, a thrombo visco-elastogram (TVE), measures the changes in blood elastic and viscous properties in the magnitude and phase of the hydro-dynamic impedance of a tubular blood sample as the thrombus is formed. The present invention is a... | 12/29/1998 |
| 5837885 | Method and device for measuring the characteristics of an oscillating system A resonator (1) is vibrating close to its resonance frequency. The vibration is excited by one or a first transducer (2) connected to an oscillator (11). The vibration is measured by the transducer (2) or a second transducer (3) and stabilized by a phase-... | 11/17/1998 |
| 5783447 | Hypercoagulability comparative determinants obtained using detection systems with variable force-induced energy inputs A method of analyzing samples of whole blood from a patient is disclosed which involves determining whether or not there is a significant difference or change in the comparative determinants of hypercoagulability in the sample. The comparative determinant... | 07/21/1998 |
| 5741971 | Method for analyzing physical properties of materials An apparatus and method for nondestructively measuring a sample of material to determine changes in dynamic Young's Modulus, density, static viscosity, compressive strength and expansion or contraction of a material over a period of time and at substantia... | 04/21/1998 |
