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| Number | Title | Issue Date |
| 8074493 | Pre-signaling magnetic plug The invention relates to a signaling magnetic plug for a liquid circuit, the plug including a first magnetic electrode and a second magnetic electrode for coming into contact with the liquid flowing in the liquid circuit when the magnetic plug is mounted so as to de... | 12/13/2011 |
| 8061185 | Method for testing a slurry used to form a semiconductor device A method for forming a semiconductor device, the method includes providing a semiconductor substrate, applying a slurry to the semiconductor substrate, wherein the slurry was tested using a testing method includes taking a first undiluted sample from a top of the sl... | 11/22/2011 |
| 8037740 | Conductive material concentration measuring device and magnetic material concentration measuring device A detection unit 4 with detection means 3 and fluid inflow/outflow guide means 2 is connected to a passage 1 for fluid with conductive material or to a pool section 5 for pooling of the fluid. The detection unit 4 guides inf... | 10/18/2011 |
| 7946155 | Method for quantitatively determining unbound metal in formulations containing chelates Methods are provided for quantitatively determining the amount of unbound metal present in a sample suspected of containing a metal-ligand chelate. ... | 05/24/2011 |
| 7327136 | Magnetic taggant system An apparatus and a method for monitoring a ratio of at least two components being mixed use sensors detecting ferrous taggant particles in the component(s) and the mixture. The sensors include an annular drive coil positioned between inner and outer annular sense co... | 02/05/2008 |
| 7299683 | Metal particle sensor system A metal particle sensor system for detecting metal particles in an oil line. The metal particle sensor system may include a metal particle sensor positioned about the line, an orifice positioned within the line and downstream of the metal particle sensor, a first pr... | 11/27/2007 |
| 7246631 | Adhesive mix monitor A system for measuring a mixture ratio associated with a two-part fluid, at least one of the two parts including conductive particles. The system includes a pair of electrodes, a circuit, and an output. The electrodes are disposed on opposite sides of the two-part f... | 07/24/2007 |
| 7198105 | Apparatus and method for controlling the pressure of fluid within a sample chamber A formation testing tool and method for providing pressure controlled sampling is provided. A flow line delivers formation fluid to a sample chamber in the testing tool. A first valve controls the flow of formation fluid from the flow line to the sample chamber. A p... | 04/03/2007 |
| 7151383 | Oil condition sensor An oil condition sensor is proposed which can accurately determine the degree to which oil is contaminated with metallic powder. It includes a permanent magnet and a sensor head provided around the permanent magnet. The sensor head includes a cup-shaped electrode an... | 12/19/2006 |
| 7148678 | Magnetic taggant system An apparatus and a method for monitoring a ratio of at least two components being mixed uses sensors detecting ferrous taggant particles in the component(s) and the mixture. The sensors include an annular drive coil positioned between inner and outer annular sense c... | 12/12/2006 |
| 7140239 | System and technique for ultrasonic characterization of settling suspensions A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and rec... | 11/28/2006 |
| 7140436 | Apparatus and method for controlling the pressure of fluid within a sample chamber A formation testing tool and method for providing pressure controlled sampling is provided. A flow line delivers formation fluid to a sample chamber in the testing tool. A first valve controls the flow of formation fluid from the flow line to the sample chamber. A p... | 11/28/2006 |
| 7112973 | Oil condition sensor An oil condition sensor includes rod-shaped electrodes and an opposed cup-shaped electrode. The rod-shaped electrodes are connected to a first power supply through first fixed resistors having a predetermined threshold. The voltage from the first power supply is app... | 09/26/2006 |
| 6983060 | Method to measure degree and homogeneity of alumina calcination A method for measuring degree and homogeneity of calcination of alumina utilizing an image analysis device equipped with a sensitive camera in a spectral analysis window corresponding to a wavelength range equal to or in the vicinity of visible light. The method inc... | 01/03/2006 |
| 6931950 | System and processes for particulate analysis A system for analyzing particles including: a source of solid particles; a sampler apparatus attached to and integral with the source of solid particles which apparatus is adapted to enable removal of small amounts of sample material from the source; a sonication ce... | 08/23/2005 |
| 6928861 | Method for a reliability assessment, failure prediction and operating condition determination of electric equipment The present invention is directed to a method for analyzing the maintenance status of liquid-filled electric equipment. An accurate indication of the maintenance state of an electric device and its insulating liquid is obtained using an analysis method comprising a ... | 08/16/2005 |
| 6895808 | Method and device for machine diagnosis, especially for transmission diagnosis The present invention concerns a method and a device for machine diagnosis and, in particular, for transmission diagnosis in a machine or motor vehicle. The measurement system, according to the invention, comprises a coil (2) wound on a coil core (11),... | 05/24/2005 |
| 6860142 | Method and apparatus for measuring a variable in a lubricant/coolant system An automatic system for monitoring/controlling a variable of a machine or metalworking fluid system also achieves cleaning and optionally, a calibration check of the sensor of the variable. The system includes one or more sensors for variables such as pH, fluid conc... | 03/01/2005 |
| 6776261 | Lubricant monitoring system An apparatus is disclosed for monitoring characteristics of a fluid lubricant contained within a lubricant chamber formed in a wheel hub mounted for rotation about a stationary wheel axle. The apparatus includes an annular bearing spacer configured for mounting on t... | 08/17/2004 |
| 6691557 | Analysis method for liquid-filled electric equipment The present invention is directed to a method for analyzing the maintenance status of liquid-filled electric equipment. An accurate indication of the maintenance state of an electric device and its insulating liquid is obtained using an analysis method co... | 02/17/2004 |
| 6672458 | System and method for manipulating magnetically responsive particles fluid samples to collect DNA or RNA from a sample A system and method for manipulating magnetically responsive particles in a solution to separate nucleic acid molecules from cell components in a cell solution. The system and method employ a device capable of receiving a plurality of tubes, each of which... | 01/06/2004 |
| 6598464 | Oil and contaminants analyzer A process, a method and apparatus are provided for testing and analyzing oil's physical and chemical characteristics and contaminants found in oil. A process separates contaminants prior to testing of oil's chemical and physical characteristics and includ... | 07/29/2003 |
| 6453738 | Method and apparatus for analyzing casing wear and retrieval of metallic fragments A method and apparatus for retrieving magnetic casing fragments from a well using a shrouded magnet are disclosed. Retrieving casing fragments allows the determination of weight loss from the casing to assist in analyzing the integrity and the condition o... | 09/24/2002 |
| 6445177 | Chip-detector assembly having improved probe-retention features A chip-detector assembly has a housing and a probe. The probe is adapted to be coupled to the housing. The chip-detector assembly also includes a locking mechanism comprising a locking ring and a sleeve member. The locking ring is fixedly coupled the hous... | 09/03/2002 |
| 6435013 | Ferromagnetic particle sensor A ferromagnetic particle sensor includes a housing having a first electromagnet and a second electromagnet attached to the interior surface thereof. A mass sensitive surface acoustic wave (SAW) sensor is disposed between the electromagnets. The sensor is ... | 08/20/2002 |
| 6420185 | Water contamination concentration apparatus and process An apparatus and methods of utilizing a semi-permeable membrane to concentrate contaminants in a portion of an Ultra Pure Water stream to levels which are detectable by an on-line analyzer. This allows the use of analyzers that would not be able to accura... | 07/16/2002 |
| 6411667 | Banded ECP sensor An ECP sensor includes a tubular ceramic probe having a closed tip at one end packed with a metal and metal oxide powder. A metal support tube receives an opposite end of the probe, and is joined thereto by a braze joint therewith. An electrical conductor... | 06/25/2002 |
| 6392562 | Fluid particle sensor apparatus and method for transmitting data to a remote receiver A sensor for detecting particles in a fluid including a housing having a cavity associated therewith, a magnet disposed adjacent the cavity to attract particles into the cavity, first and second coils wound around the outer surface of the cavity, the indu... | 05/21/2002 |
| 6386017 | System and method for measurement and control of suspended solids in a fluid A system and method for measurement and control of suspended solids in a fluid includes a sensor, dosage supervisor and logic module. The sensor includes a measurement chamber with a piston. A diverter valve controls introduction of sample fluid into the ... | 05/14/2002 |
| 6370213 | Banded ECP sensor An ECP sensor includes a tubular ceramic probe having a closed tip at one end packed with a metal and metal oxide powder. A metal support tube receives an opposite end of the probe, and is joined thereto by a braze joint therewith. An electrical conductor... | 04/09/2002 |
| 6296760 | Device for the removal and concentration of ionic metal species from water A device is provided for capturing ionic metal species (e.g., Cd, Cu, Ni, Pb and Zn) dissolved in water. The device includes a nonporous polymeric tube for capturing the dissolved ionic metal species. The tube is formed from a membrane having transient ca... | 10/02/2001 |
| 6297626 | Fluid particle sensor apparatus and method for detecting ferrous and non-ferrous metals A sensor apparatus for detecting both ferrous and non-ferrous particles in a fluid including a housing adapted for insertion into a fluid line, the housing having a collection cavity formed therewithin for trapping and holding metallic particles which are... | 10/02/2001 |
| 6146909 | Detecting trace levels of copper The specification describes an analytical technique for determining trace levels of copper in a background matrix of titanium by dissolving the titanium and the copper impurity in HF, then selectively depositing the copper on a clean silicon surface. The ... | 11/14/2000 |
| 6084399 | Method and apparatus for determining concentration of magnetic substances in a non-magnetic substance using a SQUID Method and apparatus for determining concentration of a trace of contaminant magnetic substances contained in a non-magnetic substance. A magnetic field (3) is applied to the non-magnetic substance (1) from outside a duct (2) through which the non-magneti... | 07/04/2000 |
| 6051970 | System and method for measuring the magnetic conductive properties of a test fluid The magnetic or conductive properties of a test fluid, or of particles within a test fluid, are measured by an apparatus comprising a solenoidal coil (1a), a magnetic field carrying means (23) disposed radially outside the solenoidal coil, a tubular elect... | 04/18/2000 |
| 5918272 | Magnetic and ultrasonic discriminator for particle size distribution analyzer A flow-through system for determining the particle size distribution of iron oxide particulate matter in a reactor water sample. The system includes a magnetic filter having a chamber through which a stream of reactor water. The chamber is surrounded by a... | 06/29/1999 |
| 5889200 | Tandem technique for fluid monitoring The present invention relates to a method and apparatus which can be used to detect the abnormal operating condition of equipment, such as engines and machinery, the usefulness of the fluid, and the content of wear metals and elemental constituents in the... | 03/30/1999 |
| 5831151 | System and method for monitoring the proportional volume of constituents provided to a mixture Ferromagnetic tagging material is suspended in a constituent of a two constituent mixing system. Two tagging material sensors are employed that respectively monitor the tagged constituent as it flows in the system alone and the mixed constituents as they ... | 11/03/1998 |
| 5760298 | System and method for monitoring debris in a fluid A system for monitoring debris in a fluid by detecting electrostatic charges associated with the fluid. Both the electrostatic characteristic of the fluid and of the debris are sensed and then separated by a processor that compares their mobility. The mon... | 06/02/1998 |
| 5754055 | Lubricating fluid condition monitor A lubricating/hydraulic fluid condition monitor in which a coaxial microwave resonator is placed in a fluid conduit to determine changes in the chemical properties and debris concentration is disclosed. Microwave radiation is applied to the resonator for ... | 05/19/1998 |
