| Patent application number | Description | Published |
|---|
| 20080279335 | CAGE FOR X-RAY TUBE BEARINGS - A bearing assembly mounted in an x-ray tube includes a bearing race and a plurality of bearing balls positioned adjacent to the bearing race. The plurality of bearing balls are positioned within a bearing cage. The bearing cage is configured to evenly space the bearing balls within the bearing cage and prevent contact between adjacent bearing balls, thereby eliminating the problems of skidding wear and dynamic impact load between adjacent bearing balls in the bearing assembly. | 11-13-2008 |
| 20080279336 | METHOD FOR COATING A CARBON-CARBON COMPOSITE X-RAY TUBE BEARING CAGE - A method for manufacturing an x-ray tube bearing cage includes the step of forming a bearing cage from a carbon-carbon composite material. A coating is applied to the carbon-carbon composite bearing cage. The coating includes an outer layer formed of a dry film lubricant. The coated carbon-carbon composite bearing cage is included in a bearing assembly in the x-ray tube and forms a lubricious enclosure for bearing balls positioned therein to minimize wear and heat generation in the bearing assembly. | 11-13-2008 |
| 20090279667 | METHOD AND APPARATUS OF DIFFERENTIAL PUMPING IN AN X-RAY TUBE - An x-ray tube includes an anode, a first chamber enclosing the anode and having a first pressure therein, a cathode, and a second chamber enclosing the cathode and having a second pressure therein. A separator is positioned between the first and second chambers and has a conductance limiter therein. | 11-12-2009 |
| 20100067661 | APPARATUS FOR A SURFACE GRADED X-RAY TUBE INSULATOR AND METHOD OF ASSEMBLING SAME - An insulator for a vacuum tube is disclosed and includes an electrically insulative bulk material and a first antiferroelectric coating applied to a first portion of the bulk material. | 03-18-2010 |
| 20100080357 | WIDE COVERAGE X-RAY TUBE AND CT SYSTEM - An x-ray tube is disclosed herein. The x-ray tube includes an anode assembly adapted to rotate generally about a rotational axis. The anode assembly includes a first target surface at least partially disposed at a first angle greater than 70 degrees with respect to the rotational axis and a second target surface at least partially disposed at a second angle greater than 70 degrees with respect to the rotational axis. The first target surface is adapted to emit a first x-ray beam and the second target surface is adapted to emit a second x-ray beam. A CT system is also disclosed. | 04-01-2010 |
| 20110013750 | METHOD AND APPARATUS OF DIFFERENTIAL PUMPING IN AN X-RAY TUBE - An x-ray tube includes an anode, a first chamber enclosing the anode and having a first pressure therein, a cathode, and a second chamber enclosing the cathode and having a second pressure therein. A separator is positioned between the first and second chambers and has a conductance limiter therein. | 01-20-2011 |
| 20110026681 | METHOD OF FAST CURRENT MODULATION IN AN X-RAY TUBE AND APPARATUS FOR IMPLEMENTING SAME - An x-ray imaging system includes a detector positioned to receive x-rays, and an x-ray tube coupled to a mount structure. The x-ray tube is configured to generate x-rays toward the detector and includes a target, a cathode cup, an emitter attached to the cathode cup and configured to emit a beam of electrons toward the target, the emitter having a length and a width, and a one-dimensional grid positioned between the emitter and the target and attached to the cathode cup at one or more attachment points. The one-dimensional grid includes a plurality of rungs that each extend in a direction of the width of the emitter, and the plurality of rungs are configured to expand and contract relative to the one or more attachment points without substantial distortion with respect to the emitter. | 02-03-2011 |
| 20110142193 | X-RAY TUBE FOR MICROSECOND X-RAY INTENSITY SWITCHING - An injector for an X-ray tube is presented. The injector includes an emitter to emit an electron beam, at least one focusing electrode disposed around the emitter, wherein the at least one focusing electrode focuses the electron beam and at least one extraction electrode maintained at a positive bias voltage with respect to the emitter, wherein the at least one extraction electrode controls an intensity of the electron beam. | 06-16-2011 |
| 20110176659 | APPARATUS FOR WIDE COVERAGE COMPUTED TOMOGRAPHY AND METHOD OF CONSTRUCTING SAME - A tube for generating x-rays includes a cathode adapted to emit electrons, a target positioned to receive the electrons from the cathode on a surface thereof, an anode adapted with an aperture and positioned between the cathode and the target and configured to accelerate the electrons toward the target, and a rotating system adapted to rotate the target about an axis, the rotating system located in a position facing the surface of the target. | 07-21-2011 |
| 20110280363 | METHOD OF FAST CURRENT MODULATION IN AN X-RAY TUBE AND APPARATUS FOR IMPLEMENTING SAME - An X-ray tube includes a target and a cathode assembly. The cathode assembly includes a first filament configured to emit a first beam of electrons toward the target, a first gridding electrode coupled to the first filament, a second filament configured to emit a second beam of electrons toward the target, and a second gridding electrode coupled to the second filament. | 11-17-2011 |
| 20120082292 | METHOD AND SYSTEM FOR OPERATING AN ELECTRON BEAM SYSTEM - A method for operating an electron beam system is presented. Further, an electron beam system, an X-ray tube and a CT system that implement the presented method are also described. The method includes generating an electron beam in an X-ray tube in an imaging system. Additionally, a current configuration corresponding to a particular view of the imaging system is identified. If the identified current configuration is within a determined range, a duty cycle of the electron beam for the particular view of the imaging system is modulated using pulse width modulation. Further, the modulated electron beam is focused towards a target. | 04-05-2012 |
| 20120099700 | APPARATUS AND METHOD FOR IMPROVED TRANSIENT RESPONSE IN AN ELECTROMAGNETICALLY CONTROLLED X-RAY TUBE - An x-ray tube assembly includes a vacuum enclosure including a cathode portion, a target portion, and a throat portion. The throat portion includes a magnetic field section, upstream section, and downstream section. The magnetic field section has a first susceptibility to generate eddy currents in the presence of a magnetic field intensity. The upstream section is coupled to the cathode portion and the magnetic field section and has a second susceptibility to generate eddy currents in the presence of the magnetic field intensity. The downstream section is coupled to the magnetic field section and has a third susceptibility to generate eddy currents in the presence of the magnetic field intensity. The first susceptibility to generate eddy currents is less than the second and third susceptibilities to generate eddy currents. The assembly includes a target within the target portion, and a cathode within the cathode portion. | 04-26-2012 |
| 20120099701 | APPARATUS AND METHOD FOR IMPROVED TRANSIENT RESPONSE IN AN ELECTROMAGNETICALLY CONTROLLED X-RAY TUBE - An x-ray tube assembly includes a vacuum enclosure having a cathode portion, a target portion, and a throat portion comprising a non-electrically conductive tube. The throat portion has an upstream end coupled to the cathode portion and a downstream end coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target. | 04-26-2012 |
| 20120099707 | APPARATUS AND METHOD FOR IMPROVED TRANSIENT RESPONSE IN AN ELECTROMAGNETICALLY CONTROLLED X-RAY TUBE - An x-ray tube assembly includes a vacuum enclosure that has a cathode portion, a target portion, and a throat portion. The throat portion includes a metal bellows. An upstream end of the throat portion is coupled to the cathode portion and a downstream end of the throat portion is coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target. | 04-26-2012 |
| 20120099708 | APPARATUS AND METHOD FOR IMPROVED TRANSIENT RESPONSE IN AN ELECTROMAGNETICALLY CONTROLLED X-RAY TUBE - An x-ray tube assembly includes a vacuum enclosure that includes a cathode portion, a target portion, and a throat portion having a plurality of recesses formed therein to break up eddy currents generated in the throat portion. The throat portion has an upstream end coupled to the cathode portion and a downstream end coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target. | 04-26-2012 |
| 20120121065 | METHOD AND APPARATUS OF DIFFERENTIAL PUMPING IN AN X-RAY TUBE - An x-ray tube includes a casing having a cathode and an anode enclosed therein, and a separator attached to an inner wall of the casing and having a conductance limiter therein, the separator positioned to separate the anode from the cathode. | 05-17-2012 |
| Patent application number | Description | Published |
|---|
| 20090260273 | Decoy technology - A motion-type predator decoy for attracting coyotes, wild dogs and other pest or nuisance predators for use in ranching, farming, recreation land management, public safety and sporting fields. The decoy has a support base for placement during use on an environmental surface. The base includes a downwardly disposed surface contact end of a predetermined lateral dimension and an upwardly disposed support end of a predetermined lateral dimension. The decoy also has a driven decoy mechanism connected to the support end of the base. The decoy mechanism includes an actuator and a flexible decoy member. The actuator generates vibrations and the decoy mechanism undergoes random longitudinal, radial and lateral movement components with respect to the base. A method of using the decoy is also disclosed. | 10-22-2009 |
| 20090260274 | Decoy motion technology - A decoy system for use in hunting. The system includes a central base with a motor which moves a rotating member of the base. Several arms of a predetermined length are connected to the rotating member of the base, and satellite decoy elements are connected to outer ends of the arms. A central decoy element is optionally connected to the center of the rotating member. The decoy members may be birds, for example doves. | 10-22-2009 |
| 20100115818 | DECOY TECHNOLOGY - A wild turkey decoy for use in wild turkey hunting to attract wild turkeys. The decoy includes both static and dynamic decoy features. The decoy has a decoy body, an actuatable fan assembly connected to the decoy body, and a support assembly connected to the decoy body. A preferred decoy apparatus includes (a) a decoy body, (b) a fan assembly attached to the decoy body, the fan assembly including a longitudinally pivotable bracket and a laterally pivotable fan attached to the bracket, wherein the bracket includes a base, a tail pivotally connected to the base, and a spring connected to the base and the tail that biases the tail with respect to the base, and wherein the fan includes a hub, a plurality of elongated struts pivotally connected to the hub, a flexible decoy member connected to at least one strut, and at least one spring connected to the hub and at least one strut that biases at least one strut with respect to the remaining struts; (c) an actuator to actuate the fan assembly so that the bracket longitudinally pivots and the fan laterally pivots, wherein the means to actuate includes at least one line communicatively connected to the bracket and connected to the fan, the line extending away from the body and being adapted to be pulled by a user of the decoy apparatus to longitudinally pivot the bracket and laterally pivot the fan; and (d) a support assembly connected to the body for securing the body to the environment | 05-13-2010 |
