Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8023619 | Adaptive scanning in an imaging system An object within a region is exposed to a first beam of penetrating radiation. The first beam of penetrating radiation is sensed on a side opposite the region from a source of the first beam. An attenuation of the first beam caused by passing the first beam through ... | 09/20/2011 |
| 7916837 | Grid control system for eliminating soft radiation emissions from an X-ray tube A system and method for controlling the radiation emissions from an x-ray tube having an anode, a cathode, and a grid is disclosed. The system and method uses a continuous high voltage across the cathode and the anode of the x-ray tube, so that a high voltage is con... | 03/29/2011 |
| 7742571 | Grid control system for eliminating soft radiation emissions from an X-ray tube A system and method for controlling the radiation emissions from an x-ray tube having an anode, a cathode, and a grid is disclosed. The system and method uses a continuous high voltage across the cathode and the anode of the x-ray tube, so that a high voltage is con... | 06/22/2010 |
| 7440547 | CT scanner A CT scanner which collects X-ray projection data of a subject and which generates an image in the subject from the projection data, the CT scanner includes tubes which emit X-rays and which include grids to switch emission and stoppage of the X-rays, a unit which g... | 10/21/2008 |
| 7372944 | X-ray diagnostics device and method for controlling an X-ray diagnostics device The invention relates to an x-ray diagnostics device having an x-ray tube for generating x-rays operated by a high voltage generator, having an x-ray detector for converting incident x-rays into electrical signals, having an image processing system and a control dev... | 05/13/2008 |
| 7372945 | Method and device for the recording of objects The invention relates to the recording of an object (4) by imaging with a radiation source (2) on a recording medium (3) using aperture (6), the size of which may be adjusted using adjusting means (7), depending on the size of said... | 05/13/2008 |
| 7356121 | System and method for supplying power to x-ray imaging systems Certain embodiments of the present invention provide a method for providing power to an x-ray imaging system including: sensing an electrical signal from a second power source; and routing the electrical signal from the second power source through at least one switc... | 04/08/2008 |
| 7340035 | X-ray tube cathode overvoltage transient supression apparatus An imaging tube (30) includes multiple high voltage elements (64). A voltage-clamping device (70) is coupled between the high voltage elements (64) and prevents the occurrence of overvoltage transients in the minor insulation of an imagin... | 03/04/2008 |
| 7317783 | Reduced X-Ray exposure using power modulation An X-ray imaging system includes an X-ray source operable to generate an X-ray beam, an X-ray receiver receiving the X-ray beam, a power generator generating power to the X-ray source to generate the X-ray beam, a grid disposed between the X-ray source and the X-ray... | 01/08/2008 |
| 7289599 | Radiation process and apparatus A radiation apparatus (10) includes a beam source (12) generating radiation beam toward a target (11). A projection detector (17) detects the images of the target (11) formed by the radiation beam. In a radiation treatment session ... | 10/30/2007 |
| 7272429 | Methods and apparatus for facilitating a reduction in artifacts A method for facilitating a reduction in artifacts includes receiving data regarding a first energy spectrum of a scan of an object, and receiving data regarding a second energy spectrum of a scan of the object, wherein the second energy spectrum is different than t... | 09/18/2007 |
| 7254213 | Radiological imagery method and device The relation relates to a method and a radiological imaging device. A subject (4) is illuminated by a luminous flux (1) generated by an X-ray source (2). This luminous flux (1) is a pulse having a duration tp shorter than 1 ms.... | 08/07/2007 |
| 7187752 | Product irradiator for optimizing dose uniformity in products An apparatus and method for irradiating a product or product stack with a relatively even radiation dose distribution is provided. The apparatus comprises a radiation source, an adjustable collimator, a turn-table capable of receiving a product stack and a control s... | 03/06/2007 |
| 7151330 | Apparatus and method for generating high voltages using a voltage inversion generator and multiple closed-path ferrites A vector inversion generator utilizes closed-path ferrites to modify the characteristics of the generator. The closed-path ferrites increase an inductance within a portion of the generator and additionally provide a protective shield for associated electronic circui... | 12/19/2006 |
| 7110500 | Multiple energy x-ray source and inspection apparatus employing same A multiple energy x-ray source capable of rapidly generating and delivering x-rays in the form of successive pulses that alternate between at least two different energy levels, as well as a multiple energy x-ray inspection apparatus for inspecting moving objects tha... | 09/19/2006 |
| 7079623 | X-ray unit for the generation of brief X-ray pulses and inspection device operating with such an X-ray unit An invention related to an X-ray device for the generation of brief X-ray pulses comprising an X-ray tube having a thermionic cathode and an anode and an X-ray generator having a first circuit for the generation of a high-voltage pulse which is applied to the anode ... | 07/18/2006 |
| 7050539 | Power supply for an X-ray generator A power supply for X-ray generators which includes at least one inverter (11, 12, 13), at least one transformer (111, 121, 131) and at least one voltage cascade (112, 122, 132) for generating a supply voltage for an X-ray tube (15). In or... | 05/23/2006 |
| 7010090 | X-ray diagnosis apparatus with a function of x-ray fluoroscopy An X-ray diagnosis apparatus and method for X-ray fluoroscopy in which the apparatus includes a generator, a detector, an integrator, a comparator, and a controller. In the apparatus and method, a first X-ray for the X-ray fluoroscopy is generated intermittently. A ... | 03/07/2006 |
| 6944268 | X-ray generator An X-ray generator comprises a cathode electrode (15), a grid electrode (17) for controlling an electron beam (e) generated by the cathode electrode (15), a focus electrode (18) for focusing the electron beam (e), and an anode target (... | 09/13/2005 |
| 6882703 | Electron source and cable for x-ray tubes A system and method for providing pulsed power application for an x-ray tube that comprises an x-ray tube having an anode and cathode; and a power supply adapted to provide an anode-to-cathode gap accelerating potential and photons, wherein the gap voltage and photo... | 04/19/2005 |
| 6816573 | X-ray generating apparatus, X-ray imaging apparatus, and X-ray inspection system The voltage applied to a first grid electrode 71 of an X-ray tube 11 by a grid voltage control section 110 is controlled with reference to a predetermined negative voltage from a negative voltage generating section 112 when an object 5... | 11/09/2004 |
| 6385280 | X-ray computed tomography apparatus with modulation of the x-ray power of the x-ray source An x-ray CT apparatus has an x-ray source which emits an x-ray beam which is displaceable relative to an examination subject, the x-ray source emitting x-rays in the form of one or more pulses during the registration of a projection. An arrangement for mo... | 05/07/2002 |
| 6285740 | Dual energy x-ray densitometry apparatus and method using single x-ray pulse A dual-energy x-ray system is provided which is useful in densitometry and other applications. A dual energy x-ray source, formed field emission x-ray tube driven by a Marx generator, produces a single x-ray pulse of a very short duration (e.g., 10 to 200... | 09/04/2001 |
| 6111931 | X-ray apparatus operable at different energy supply sources which respectively deliver different average electrical powers per unit of time An x-ray system which can be operated at various energy supply sources which can respectively deliver different average electric powers per unit of time, has an x-ray source supplied by a voltage generator, an x-ray receiver and a control unit to which th... | 08/29/2000 |
| 5652777 | Diagnostic X-ray apparatus A diagnostic X-ray apparatus includes an X-ray tube, an image intensifier for converting an X-ray image of an object under examination to an optical image, a solid state image sensor device for detecting the optical images produced by the image intensifie... | 07/29/1997 |
| 5546440 | X-ray diagnostic apparatus An X-ray diagnostic apparatus repeatedly radiates pulse-like X-rays, repeatedly images X-rays passing through an object to be examined at a predetermined frame period, and sequentially displays a plurality of images thus obtained repeatedly. In this inven... | 08/13/1996 |
| 5544215 | Digital angiography system with automatically determined frame rates A subject is positioned on a patient support (12) between an x-ray source (10) and a radiation detector assembly (14). The x-ray source is gated (36) on or open prior to triggering (38) a video camera (26) of the x-ray detector assembly to generate an ele... | 08/06/1996 |
| 5448614 | Fluoroscopic imaging system In an interventional radiography (IVR), for example in a percutaneous transluminal coronary angioplasty (PTCA), when the IVR includes a period in which the movement of the object is slow, a normal X-ray radiating mode (a continuous X-ray radiation or a no... | 09/05/1995 |
| 5347571 | X-ray tube arc suppressor A high frequency voltage generator (10) produces a high positive voltage and a high negative voltage. A parallel connected coil (26) and diode (30) are connected between the high voltage supply and a target (44) of an x-ray tube (40). A second parallel co... | 09/13/1994 |
| 5200984 | Filament current regulator for an X-ray tube cathode The disclosure relates to devices for supplying current to X-ray tube cathode filaments. The filament of a cathode is supplied with high-frequency current pulses given by a hyporesonant type DC/AC converter, the transistors of which are controlled by a re... | 04/06/1993 |
| 5119409 | Dynamic pulse control for fluoroscopy An apparatus and method for dynamically controlling the generation of radiation pulses during pulse-type fluoroscopic imaging. Brightness of an image produced by a pulse is detected, converted to a digital value and compared to an acceptable predetermined... | 06/02/1992 |
| 5077771 | Hand held high power pulsed precision x-ray source A pulsed precision x-ray source includes a miniaturized internally self-shielding x-ray tube and an integral generator contained in a hand-held housing for generating timed bursts of x-ray having regulated energy level. A control grid and focus electrode ... | 12/31/1991 |
| 5056125 | Discharge module for X-ray cable A discharge module positionable between a high-voltage power supply and an X-ray tube for discharging any capacitive voltage remaining on the cable connecting the same. The discharge module includes a low-voltage control portion which is optically coupled... | 10/08/1991 |
| 5044004 | Flash X-ray apparatus An apparatus for producing high energy, pulsed, flash X-rays which is of a useful laboratory-scale size. The apparatus includes a hydrogen thyratron coupled between a D.C. power source and a low impedance Blumlein, and a low impedance X-ray head. The thyr... | 08/27/1991 |
| 5001618 | Ripple insensitivity method for regulating the voltage of a voltage signal A direct-current high voltage obtained by rippling, stepping-up and rectification of a direct-current low voltage is regulated in such a manner as to ensure that the maximum value of direct-current high voltage attains a predetermined peak value at each r... | 03/19/1991 |
| 4991192 | X-ray imaging apparatus An X-ray imaging apparatus comprises an X-ray generator, an image intensifier for converting an X-ray image of a subject under examination to an optical image, a solid state image sensor for picking up the optical image of the image intensifier, a driver ... | 02/05/1991 |
| 4947415 | Flash x-ray apparatus An apparatus for producing high energy, pulsed, flash X-rays which is of a useful laboratory-scale size. The apparatus includes a hydrogen thyratron coupled between a D.C. power source and a low impedance Blumlein, and a low impedance X-ray head. The thyr... | 08/07/1990 |
| 4924485 | Portable radiography system using a relativistic electron beam A portable radiographic generator is provided with an explosive magnetic flux compression generator producing the high voltage necessary to generate a relativistic electron beam. The relativistic electron beam is provided with target materials which gener... | 05/08/1990 |
| 4783795 | X-ray generator system An X-ray generator system has first and second switching devices such as transistors which are complementarily turned on and off to intermittently apply a DC voltage to the primary winding of a transformer for thereby inducing a high voltage across second... | 11/08/1988 |
| 4731803 | Circuit for operating an X-ray tube A circuit for operating an X-ray tube, such as in a medical diagnostics apparatus, is connected with a high-voltage generator and a switch mechanism for connecting and disconnecting the X-ray tube to the high-voltage generator. A resistor is disposed in a... | 03/15/1988 |
