Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8188732 | Arrangement and method for influencing magnetic particles in a region of action using distinguishable magnetization of the two magnetic particles An arrangement and a method for influencing and/or detecting and/or locating magnetic particles in a region of action include a driver generating a magnetic drive field so that magnetization of the magnetic particles changes. The magnetic particles include first and... | 05/29/2012 |
| 8183860 | Arrangement and method for influencing and/or detecting magnetic particles in a region of action An arrangement and a method for influencing and/or detecting magnetic particles in a region of action includes a generator for generating a magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magn... | 05/22/2012 |
| 8183859 | Apparatus and method for calibrating a tramp metal detector An apparatus for calibrating a metal detecting device of a materials processing line. A placement arm is provided to control the path of a calibrating sample in order to simulate movement of tramp metal moving on a processing line along with materials being processe... | 05/22/2012 |
| 8183861 | Arrangement including compensation for influencing and/or detecting magnetic particles in a region of action An arrangement for influencing and/or detecting magnetic particles includes a selector for generating a magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub... | 05/22/2012 |
| 8179131 | Method and arrangement for influencing and/or detecting magnetic particles in a region of action by rotating magnetic drive vector A method for influencing and/or detecting magnetic particles in a region of action includes generating a magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second su... | 05/15/2012 |
| 8174258 | Method and system for measurement of parameters of a flat material A system and method for measurement of parameters of a conductive material, include generating an oscillating electromagnetic field (EMF) interacting with a sample portion from a remotely positioned source; measuring values of components of impedance of the electrom... | 05/08/2012 |
| 8154276 | Method and arrangement for locating magnetic markers in a region of action A method and an arrangement for influencing and/or detecting and/or locating magnetic markers in a region of action is disclosed, which method comprises the steps of: generating a magnetic drive field so that the magnetization of the magnetic marker changes, generat... | 04/10/2012 |
| 8148976 | Method and arrangement for the contactless inspection of moving electrically conductive substances The invention relates to a method and arrangement for the contactless determination of conductivity-influencing properties and their spatial distribution over the entire cross section of an electrically conductive substance moving in a primary magnetic field (B). Th... | 04/03/2012 |
| 8120354 | Self-calibrating magnetic field monitor A self-calibrating magnetic field monitor is disclosed. In one embodiment, a magnetic field sensor repeatedly generates an electronic signal related to the magnetic field. In addition, a calibration module generates a relative baseline signal based on an average val... | 02/21/2012 |
| 8111066 | Device and method for measuring the mass of a magnetic material, and analysis apparatus including such device The invention relates to a device for measuring the mass of a magnetic material (6) present in an analysis medium, that comprises: a modulator (24) of the phase of a high-frequency and/or low-frequency component of a magnetic field for exciting the ana... | 02/07/2012 |
| 8098064 | Speed filter calibration apparatus and method for radio frequency metal detectors A metal detector (40) used for identifying contaminants in products (23) introduced into the metal detector by a conveyor. The detector (40) includes coils (1), a search head (2) and an analog to digital converter (3) that g... | 01/17/2012 |
| 8076929 | Device and method for detecting an anomaly in an assembly of a first and a second object A method for detecting an anomaly in an assembly of a first and a second object of electrically conductive material forming an intermediate space between them, comprising providing a device (5) comprising a transmitter/receiver arrangement (7) for gene... | 12/13/2011 |
| 8044660 | Arrangement and method for influencing and/or detecting magnetic particles in a region of action An arrangement for influencing and/or detecting magnetic particles, and/or calibrating such an arrangement includes generating a magnetic selection field having a magnetic field strength pattern such that a first sub-zone having a low magnetic field strength and a s... | 10/25/2011 |
| 8026717 | Wall stud detector and magnet A wall stud detector comprises a housing having a surface for moving over a substrate and a recess in the surface extending into the housing. A target associated with the housing comprises an outer casing and a magnet located in the outer casing. The outer casing co... | 09/27/2011 |
| 8018227 | Device and method for measuring and monitoring the level of liquid metal in a crystalliser A device and method for measuring the surface level and/or the presence of a molten metal bath in a cooled container, particularly a crystallizer for a continuous casting process, comprising a source of an electromagnetic field, wherein said source of an electromagn... | 09/13/2011 |
| 8013598 | Object detecting device for detecting object using electromagnetic induction Provided is an object detecting device, which can detect the shape of or the distance from an object made of an electrically conductive or magnetic material, and which can detect the position indicated by an object made of an electrically-non-conductive/non-magnetic... | 09/06/2011 |
| 7977937 | GMR biosensor with aligned magnetic field A planar array of GMR or TMR sensor elements with planar free and pinned layers is used as the basis of a sensor for detecting the presence of small magnetized particles. In particular, the sensor is used for detecting the presence of magnetized particles bonded to ... | 07/12/2011 |
| 7956607 | Digital ferromagnetic part inspection Digital ferromagnetic part inspection system and method use a magnetizer for magnetizing a ferromagnetic part to be inspected, wherein a defect in or near a surface of the ferromagnetic part causes an external magnetic field. A magnetic field sensing element is posi... | 06/07/2011 |
| 7952347 | Systems and methods of reducing a component of a signal caused by vibration A vibration detection circuit. The circuit includes an accelerometer, a combining filter, an amplifier, and an analog to digital converter. The accelerometer generates one or more signals indicative of movement along an axis. The combining filter filters a component... | 05/31/2011 |
| 7919961 | Method for measuring magnetic permeability and reference sample used in the latter The invention relates to a method for measuring the magnetic permeability of a magnetic material by measuring the magnetic interaction of an electromagnetic field with this material by using a measuring device including a measuring cell connected through a microwave... | 04/05/2011 |
| 7888931 | Magnetic winding and method of making same The present invention provides an improved magnetic winding and method of calculating desired winding parameters (winding layer thickness, number of winding layers and number of turns per winding layer) for a winding in a magnetic component. The invention may be app... | 02/15/2011 |
| 7839143 | Eddy current magnetic crash sensor At least one time-varying signal is applied to a plurality of coil elements in cooperative relationship with and spanning different portions of a vehicle. The coil elements generate an associated plurality of magnetic field components that interact with the vehicle.... | 11/23/2010 |
| 7839142 | Magnetic crash sensor At least one time-varying signal is applied to a plurality of coil elements in cooperative relationship with and spanning different portions of a vehicle. The coil elements generate an associated plurality of magnetic field components that interact with the vehicle.... | 11/23/2010 |
| 7804295 | Apparatus and method for detection of defects using flux leakage techniques An apparatus for the detection of defects utilizing non-destructive flux leakage techniques in ferrous materials includes rare earth magnets which are supported at an angle in the order of 45 degrees with the surface of the test specimen to induce a magnetic field w... | 09/28/2010 |
| 7795864 | Apparatus and method of using multi-component measurements for casing evaluation A casing inspection device with magnets and a multi-component flux sensors. The multicomponent sensor enables better definition of the size of defects, particularly in the azimuthal direction. ... | 09/14/2010 |
| 7791337 | Metal detector A vibration canceling circuit for a metal detector. The metal detector includes a transmit coil, first and second receive coils, a differential circuit coupled to the first and second receive coils, a controller coupled to the differential circuit, and a vibration c... | 09/07/2010 |
| 7772839 | Eddy current magnetic crash sensor A magnetic field generated by at least one coil operatively associated with a first portion of a vehicle responsive to a first signal from a signal source causes an eddy current in at least one conductive element operatively associated with or at least a part of a s... | 08/10/2010 |
| 7710111 | Nondestructive inspection method and device The present invention nondestructively analyzes the position or corrosion state of a magnetic material present in the interior of a non-magnetic material structure. The magnetic material is magnetized from the outside of the structure, and magnetic flux density of t... | 05/04/2010 |
| 7701204 | Metal detector with reliable identification of ferrous and non-ferrous metals in soils with varying mineral content A pulse-induction type metal detector that reliably identifies ferrous and non-ferrous targets in soils with varying mineral content. The influence of the background signals from the soil is removed continuously, without the need for manual adjustment of controls by... | 04/20/2010 |
| 7622917 | Methods and apparatus for inspecting materials Apparatus and methods for inspecting materials such as cylindrical and tubular members are disclosed. One apparatus includes a frame that supports a magnetic coil and a detector assembly, the detector assembly having one or more magnetic detectors adapted to be spac... | 11/24/2009 |
| 7619408 | Spatially resolved determination of magnetic particle anisotropy in an area of examination Determination of at least one of physical, chemical and biological properties and parameters within an area of examination of an object of examination by introducing magnetic particles in at least a portion of the area of examination, generating a magnetic field wit... | 11/17/2009 |
| 7514917 | Magnetic crash sensor A time-varying signal is applied to at least one coil in magnetic communication with at least a portion of a vehicle susceptible to deformation responsive to a crash. A sense resistor in series with the at least one coil provides for detecting a current therethrough... | 04/07/2009 |
| 7498804 | Resonance current sensing A current measurement system includes a magnetic core having an inside area through which a conductor carrying current to be measured extends. A measurement winding is wound on the magnetic core. A voltage source couples to the measurement winding to generate curren... | 03/03/2009 |
| 7489129 | Method and system for the detection of surface defects on a metal product as it is being continuously cast The invention relates to a method of detecting surface defects on a continuously-cast crude metallic product, such as a steel slab (4). According to the invention, a sensor (10) is used to detect surface defects by means of eddy currents, said sensor c... | 02/10/2009 |
| 7442935 | Device for analyzing the composition of the contents of a container The present invention relates to a device for analyzing the composition of the contents of a receiver comprising: means (40) for emitting/receiving an electromagnetic field at a variable frequency over a determined frequency range, means (22) for suppo... | 10/28/2008 |
| 7423423 | Method for quantitatively determining the width of a soft zone area of a partially hardened workpiece Disclosed is a method for quantitatively determining the width of a soft zone area of a partially hardened metallic workpiece, which has at least one hardened and one unhardened area, by means of at least one multifrequency eddy current sensor. A single workpiece be... | 09/09/2008 |
| 7423422 | Metal detector A memory (33) is provided for storing in advance data of signals supplied from a detector unit (26) when a plurality of metallic foreign matter samples differing in magnitude passes an alternating field, and data representing the magnitude of each fore... | 09/09/2008 |
| 7414395 | Method and apparatus inspecting pipelines using magnetic flux sensors The method for detecting stress corrosion cracking (SCC) of pipelines, comprising the steps of: identifying pipeline locations and pipeline conditions that are amenable to inspection by a magnetic flux inline tool and by a TFI tool; performing two inspections on the... | 08/19/2008 |
| 7405558 | Steam generator mapping with reflections of eddy current signal A method to determine deposits in a steam generator having the steps of creating a calibration standard having at least two rings of deposit material, subjecting the calibration standard to an eddy current signal, wherein an amplitude of the signal reflected from th... | 07/29/2008 |
| 7405562 | Magnetic field imaging detection apparatus A detection apparatus for detecting the presence of a sample, the detection apparatus comprising a chamber, ports for introducing a sample within the chamber, an actuation unit for establishing a controllable electromagnetic field in the chamber; and a sensing unit ... | 07/29/2008 |
