General Electric Company

Ge Medical Systems Global Technology Company, LLC

Thomas Dean Schaefer

Ron Kent Hockersmith

Gregory Alan Steinlage

Ethan James Westcot

Sergio Lemaitre

Michael Scott Hebert

Charles B Kendall

Donald Robert Allen

Edward Emaci

David E Dean

Paul Michael Ratzmann

Kalyan Koppisetty

J Scott Price

Liqin Wang

Liangheng Qiu

Evan Michael Lampe

Lloyd Wang

Earl Warden

A fastening assembly includes a fastener having a head with an underside and an elongated shaft extending therefrom. The fastener constructed of at least one of a refractory metal and a superalloy. A washer includes a body with an upper surface and an opposing lower surface which defines opening portion for receiving the elongated shaft of the fastener therethrough. The upper surface of the washer forms diffusion bonds with the underside of the head of the fastener when the washer and the fastener are held in contact at temperatures in excess of 500&#xb0; C.

High temperature secondary torque retention for bolted assemblies

The present embodiments relate to off-focal X-ray radiation attenuation within X-ray tubes, for example X-ray tubes used in CT imaging. In one embodiment, an X-ray tube for off-focal X-ray radiation attenuation is provided. The X-ray tube includes a cathode, a target, and a magnetic focal spot control unit having at least one electromagnet encased in a resin loaded with X-ray attenuating material.

X-ray tube with secondary discharge attenuation

The present embodiments relate to off-focal X-ray radiation attenuation within a connector. In one embodiment, a connector X-ray shielding capabilities is provided. The connector includes a housing with openings for an electrical cable as well as an electrical connection. The connector further includes an X-ray shielding liner made of moldable synthetic material doped with an X-ray attenuating material. The X-ray shielding liner is disposed within the housing, and also includes openings for the electrical cable and electrical connection.

X-ray shielded connector

In one embodiment, an X ray tube assembly is provided. The X ray tube assembly comprises an evacuated envelope, an anode disposed at a first end of the evacuated envelope and a cathode assembly disposed at a second end of the evacuated envelope. The cathode assembly comprises a cathode filament and a cathode cup defining a plurality of electrically isolated deflection electrodes. Further, the cathode cup comprises at least two portions, a first portion comprising an electrically conductive material and a second portion comprising an electrically insulating material. In another embodiment, a method of manufacturing the X ray tube assembly is provided.

X ray tube assembly and method of manufacturing and using the X ray tube assembly

An X-ray tube target assembly and method of manufacturing same is provided. The X-ray tube target assembly comprises an injection molded target disk. The injection molded target disk includes an injection molded hub member and an injection molded outer member. The injection molded outer member comprises a plurality of injection molded outer member segments that are removably attached together and removably attached to the hub member to form the injection molded target disk. A target track is formed on an outer surface on one side of an outer periphery of the injection molded outer member.

X-ray tube target assembly and method of manufacturing same

An x-ray tube includes a stationary base and a passage therein. The x-ray tube includes an anode frame having an anode positioned adjacent to a first end and having a neck at a second end, the neck extends into the passage, wherein the anode frame is configured to rotate about a longitudinal axis of the passage. A hermetic seal is positioned about the neck between the neck and the stationary base.

Stationary cathode in rotating frame x-ray tube

An x-ray target assembly is provided comprising a drive shaft and an outer shaft housing element. A primary integral duplex bearing assembly is positioned between the outer shaft housing element and the drive shaft and comprises a primary fixed outer race and a primary dual inner race comprising a first primary inner race element and a second primary race element. A plurality of primary ball elements are positioned therebetween. A secondary integral duplex bearing assembly is positioned between the outer shaft housing element and the drive shaft and comprises a secondary floating outer race comprising a single secondary race element. A secondary dual inner race is comprised of a first secondary inner race element and a second secondary race element. A plurality of secondary ball elements are positioned between the secondary floating outer race and the secondary dual inner race.

Integral duplex bearings for rotating x-ray anode

An anode assembly () includes a thermally conductive bearing encasement () covering a portion of a bearing (). An anode () rotates on the bearing () and has a target () with an associated focal spot (). The thermally conductive bearing encasement () is configured and expansion limited to prevent displacement of the focal spot () of greater than a predetermined displacement during operation of the anode ().

Bearing temperature and focal spot position controlled anode for a CT system

A filament circuit resistance adjusting apparatus (), for a filament circuit () having a filament () with a first resistance is provided. The filament circuit resistance adjusting apparatus () includes a first resistor (), which has a second resistance and is electrically coupled to the filament (). The first resistor () adjusts the resistance of the filament circuit (). A method for adjusting the resistance of the filament () is also provided.

Filament circuit resistance adjusting apparatus technical field

A cathode assembly ( ) for a computed tomography scanning system ( ) is provided. The cathode assembly ( ) includes a one-piece tab assembly ( ) for simple and relatively quick installation on a cathode cup ( ). In one embodiment, the one-piece tab assembly ( ) has two rail portions ( ) extending substantially across its length. These rail portions ( ) are intended for insertion into channels ( ) formed within the cathode cup ( ) and for properly locating the one-piece tab assembly ( ) in a desired position relative to the filament ( ). The assembly ( ) further includes two tab portions ( &Prime;) located on opposing ends of the rail portions ( ). The tab portions ( &Prime;) each include a main body portion ( ) and a flap portion ( ) extending from the main body portion ( ). The main body portion ( ) extends between the two rail portions ( ) and has a mounting surface for attaching the one-piece tab assembly ( ) to the cathode cup ( ). The flap portions ( ) extend substantially perpendicular from the main body portions ( ) and direct the electron beam emitted by the filament ( ).

One-piece tab assembly for a cathode cup of an X-ray imaging machine

An X-ray system ( ) includes an X-ray tube ( ) that has a temperature sensor ( ) coupled thereto. The temperature sensor ( ) may be included in a heat exchanger ( ). The temperature sensor ( ) generates a temperature signal that is provided to a controller ( ). The controller ( ) generates a fan speed control signal that is used to control the speed of the fan ( ) in response to the temperature signal.

Growing community of inventors

Milwaukee, WI, United States of America

Thomas Dean Schaefer