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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7813479 | X-ray device with scattered-beam suppression The invention relates to an X-ray device with an X-ray radiation source and with a preferably digital detector, which is placed in the beam path of the radiation source behind the object, particularly behind a patient. Scattered-rays are suppressed by means of a sca... | 10/12/2010 |
| 7593510 | X-ray imaging with continuously variable zoom and lateral relative displacement of the source An inspection system based on penetrating radiation in which the field of view of a scan may be varied. First and second primary limiting apertures are provided for interposition between a source of penetrating radiation and an inspected object. This allows for sign... | 09/22/2009 |
| 7362847 | Displaced-ray CT inspection A computed tomography scanner includes a housing, a conveyor disposed at least partially within the housing and configured to move an object to be scanned through the housing along a direction of travel, a gantry connected to the housing and configured to receive th... | 04/22/2008 |
| 7352844 | Method and system for automatically scanning and imaging the contents of a moving target The system and method described herein facilitate back-to-back automatic scanning of moving vehicles without have the vehicles stop in the scanning zone. The system includes a scanning zone that comprises a radiation source and a radiation source detector. The syste... | 04/01/2008 |
| 7330535 | X-ray flux management device The invention is directed to an x-ray flux management device that adaptively attenuates an x-ray beam to limit the incident flux reaching a subject and radiographic detectors in potentially high-flux areas while not affecting the incident flux and detector measureme... | 02/12/2008 |
| 7308076 | X-ray system comprising an X-ray source, a detector assembly, and a shutter A method and system include at least one X-ray source for producing at least one X-ray beam, at least one detector assembly, at least one shutter, and a barcode reader. The shutter directs the at least one X-ray beam toward the detector assembly. The barcode reader ... | 12/11/2007 |
| 7298820 | Portal imaging using modulated treatment beam A radiation therapy system produces a treatment beam that is detected by an electronic portal imaging device (EPID) after it passes through the subject being treated. A chopper wheel modulates low energy components of the beam while leaving the higher energy compone... | 11/20/2007 |
| 7263169 | X-ray computed tomography apparatus with beam-gating diaphragm An x-ray computed tomography apparatus has an x-ray source that can be rotated around a system axis and a diaphragm that is disposed downstream from the x-ray source in the ray propagation direction for gating a fan-shaped ray beam that irradiates a subject. The dia... | 08/28/2007 |
| 7263171 | Beam diaphragm and X-ray imaging apparatus With a view to providing a beam diaphragm having a large maximum value of aperture opening under a limited profile dimension, the beam diaphragm comprises a pair of control rings having coaxial apertures for the passage of X-rays therethrough and being opposed to ea... | 08/28/2007 |
| 7215738 | Method and system for automatically scanning and imaging the contents of a moving target The system and method described herein facilitate back-to-back automatic scanning of moving vehicles without have the vehicles stop in the scanning zone. The system includes a scanning zone that comprises a radiation source and a radiation source detector. The syste... | 05/08/2007 |
| 7170975 | Method for operating a computed tomography apparatus having a diaphragm at the radiation detector In a method for operating a computed tomography apparatus, having an x-ray source rotatable around a system axis and a radiation detector with a detector-proximate beam-gating diaphragm, and a patient support, a spiral scan of a patient on the patient support is con... | 01/30/2007 |
| 7164143 | PET and SPECT systems with attenuation correction A radiation source comprising: a source of radiation; a plate having an aperture formed therein, said aperture facing the source of radiation; and means for moving the source when no radiation is d... | 01/16/2007 |
| 7123680 | X-ray computer tomography apparatus An X-ray computer tomography apparatus includes an X-ray tube, an X-ray detector, a data collection apparatus that collects X-ray signals from the X-ray detector repeatedly, a shutter mechanism that is arranged between the X-ray tube and a subject in order to conver... | 10/17/2006 |
| 7113566 | Enhancing resolution of X-ray measurements by sample motion A method for inspection of a sample includes directing a beam of X-rays toward a sample and configuring an array of detector elements to capture the X-rays scattered from the sample. The sample is shifted in a direction parallel to the axis of the array between at l... | 09/26/2006 |
| 7102832 | Method and apparatus for modulating infrared radiation A chopper for an imaging system includes a frame and a sheet that have different coefficients of thermal expansion. The frame has a space within it, and has at least one opening that allows radiation to pass through the space. The sheet has structure which influence... | 09/05/2006 |
| 7091508 | Radiation protection system A method of performing a medical procedure includes providing a radiation-shielding cubicle having an interior defining a medical personnel region and including a first wall having an opening therein, locating the cubicle with respect to an x-ray table so a portion ... | 08/15/2006 |
| 7072447 | Device for filtering an x-ray beam An apparatus for filtering an x-ray beam emitted by an x-ray source comprises a filter, adjustable from a parked position (P) outside of a path of the x-ray beam into a filtering position (F) in the x-ray beam path. A corresponding first sensor device detects when t... | 07/04/2006 |
| 7050544 | X-ray diagnostic device with filters and a beam sighting mirror mounted on a common rotatable disk An X-ray diagnostic device has an X-ray tube and a diaphragm housing in which diaphragm plates for limiting an X-ray field are contained, as are a lamp and a mirror. The lamp and mirror are configured so that, when the lamp is on, the light therefrom is reflected by... | 05/23/2006 |
| 7046768 | Shutter-shield for x-ray protection A shutter-shield system for radiation protection is applied to a an x-ray generator in a shielded station for inspecting products moving through the station on a conveyor. Deployed in a sliding attachment on a collimator housing of the x-ray generator, a shutter pla... | 05/16/2006 |
| 7010094 | X-ray inspection using spatially and spectrally tailored beams A system and method for inspecting an object, the system and method comprising a source for generating a penetrating radiation beam for irradiating the object, the beam having, for each instant of time, an instantaneous energy spectrum of intensity, a shaper for mod... | 03/07/2006 |
| 6995359 | Miniature cryogenic shutter assembly A calibration method for radiometric imaging systems that relies on an absolute measurement of scene radiance (thereby requiring a baseline measurement of zero radiance), and a shutter assembly for taking the baseline measurement of zero radiance which is operable u... | 02/07/2006 |
| 6934363 | Radiation diaphragm for an X-ray apparatus A radiation diaphragm for an X-ray apparatus has an absorber element that can be swiveled around a swiveling axis for the variable limitation of a ray bundle. The swiveling axis is oriented transversely to the ray bundle. A swivel arm that can be swiveled around the... | 08/23/2005 |
| 6867843 | Debris removing system for use in X-ray light source A debris removing system prevents debris from being scattered from an X-ray source. The debris removing system includes an attracting unit, disposed between a light emission point of the X-ray source and the optical system, for attracting debris. The attracting unit... | 03/15/2005 |
| 6778633 | Method and apparatus for prolonging the life of an X-ray target An X-ray generator comprises an evacuated and sealed X-ray tube, containing an electron gun and an X-ray target. An electron beam is produced by the electron gun in which the cathode is at negative high voltage, the electron gun consisting of a filament just inside ... | 08/17/2004 |
| 6618465 | X-ray shielding system and shielded digital radiographic inspection system and method An x-ray shielding system includes a beam controller configured to surround an x-ray source and includes a detector shield configured to position behind an x-ray detector. The beam controller includes a source shield and an aperture. The source shield and... | 09/09/2003 |
| 6453007 | X-ray inspection using co-planar pencil and fan beams An inspection system is for inspecting an object with penetrating radiation. A source of penetrating radiation provides a beam of radiation. The beam alternates between a first beam shape and a second beam shape, the first and second beam shapes being cop... | 09/17/2002 |
| 6445771 | X-ray device incorporating detection of shutter edges The shutters (2) in an X-ray device which include at least a radiation source (1), a diaphragm device (8) with shutters (2) and a recording (3) and image processing unit (4), are provided with hole and/or edge patterns (11-14) which reproduce non-anatomic... | 09/03/2002 |
| 6438202 | Method using post-patient radiation monitor to verify entrance radiation and dose in a radiation therapy machine In radiotherapy, a high quality imaging array may be placed after the patient and opposite the radiation source to be used during radiation treatment to verify operation of a shutter system or similar device and/or to compute dose delivered to the patient... | 08/20/2002 |
| 6434219 | Chopper wheel with two axes of rotation An apparatus and method for creating a beam of penetrating radiation of specified cross section that raster scans over a two-dimensional area, using a chopper wheel rotated about two axes. The wheel has a set of apertures of which at least one is illumina... | 08/13/2002 |
| 6418194 | High speed x-ray beam chopper A fast, economical, and compact x-ray beam chopper with a small mass and a small moment of inertia whose rotation can be synchronized and phase locked to an electronic signal from an x-ray source and be monitored by a light beam is disclosed. X-ray bursts... | 07/09/2002 |
| 6393100 | Asymmetric collimator for chest optimized imaging Collimator apparatus is provided for an X-ray imaging system comprising an X-ray tube disposed to project an X-ray beam, and a detector spaced apart from the X-ray tube for receiving X-rays of the beam within an Active Imaging Area (AIA). The apparatus co... | 05/21/2002 |
| 6356620 | Method for raster scanning an X-ray tube focal spot A method and apparatus for producing a scanned beam of penetrating radiation. A beam of particles illuminates a portion of a target, the illuminated portion comprising a focal spot having a centroid. Illumination of the target creates a beam of penetratin... | 03/12/2002 |
| 6269142 | Interrupted-fan-beam imaging Interrupted-Fan-Beam imaging is a method of producing back-scatter x-ray images from conventional line scan systems, such as those used for luggage and cargo inspection. Since back-scatter and transmission images are formed from different physical princip... | 07/31/2001 |
| 6191428 | Ultraviolet shutter An arrangement of shutter segments each having longitudinally opposed ends, front and back edges, and top and bottom solid surfaces, wherein each segment is adjacent to at least one other segment. The segments are arranged with the front and back edges of... | 02/20/2001 |
| 6192104 | Fan and pencil beams from a common source for x-ray inspection A system and method for inspecting an object, where both a fan beam and a pencil beam of penetrating radiation are used to illuminating the object concurrently. Both beams may be derived from a single source of penetrating radiation. The pencil beam is no... | 02/20/2001 |
| 6185279 | Casing for electromagnetic radiation source and method for eliminating extrafocal electromagnetic radiation A casing for an electromagnetic radiation source includes a window made of a material that is transparent to the radiation emitted by the source and which includes at least one chamber in which a material that is opaque to electromagnetic radiation can mo... | 02/06/2001 |
| 6034371 | Semi-opaque chopper for thermal imaging system and method Thermal imaging chopper (22) having a frame (42) with an open window (47) and a covered window (48). The covered window (48) is preferably covered with a material that partially blocks a selected amount of thermal radiation from a scene and randomly scatt... | 03/07/2000 |
| 6009144 | X-ray system and X-ray exposure apparatus An X-ray system includes a radiation source for producing a radiation beam containing X-rays, a mirror device for reflecting X-rays, a beam duct for introducing the X-rays reflected by the mirror device, to an irradiation zone where an object to be irradi... | 12/28/1999 |
| 5960102 | X-ray image processing method and device for performing that method in which a portion corresponding to an x-ray absorption filter is selectively processed An image processing method is provided to remove areas from an image made by x-irradiation, said areas corresponding to absorption filters in the x-ray beam. Because such filters, also known as x-ray shutters, are inserted into the x-ray beam from the out... | 09/28/1999 |
| 5777775 | Mechanical beam isolator for high-power laser systems A mechanical beam isolator uses rod-shaped elements having a Gaussian configuration to interrupt the path of a beam of photons or particles when the time-scale of the needed interruption is of the order of a microsecond or less. One or more of these rods ... | 07/07/1998 |
