Patents by Inventor Lawrence Wheatley Bawden

Lawrence Wheatley Bawden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Liquid metal containment in an X-ray tube
    Patent number: 9275822
    Abstract: Liquid metal containment in an x-ray tube. In one example embodiment, an x-ray tube anode assembly includes a shaft terminated by a head and an anode connected to an anode hub. The anode hub is at least partially surrounding the head of the shaft. The anode hub is configured to contain a volume of a liquid metal and to rotate around the stationary shaft. The anode hub may also define a catch space within the anode hub that is configured to catch the liquid metal in order to contain the liquid metal within the hub while in a non-rotating state and regardless of the orientation of the x-ray tube anode assembly.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: March 1, 2016
    Assignee: VARIAN MEDICAL SYSTEMS, INC.
    Inventors: Ward Vincent Coon, Dennis H. Runnoe, Lawrence Wheatley Bawden
  • INTEGRAL LIQUID-COOLANT PASSAGEWAYS IN AN X-RAY TUBE
    Publication number: 20140311697
    Abstract: Integral liquid-coolant passageways in an x-ray tube. In one example embodiment, an x-ray tube includes a can at least partially defining an evacuated enclosure, a cathode at least partially positioned within the evacuated enclosure, and an anode at least partially positioned within the evacuated enclosure. The can has first integral liquid-coolant passageways formed therein. The can is configured to have a liquid coolant circulated through the first integral liquid-coolant passageways to thereby cool the can without the can being submersed in a liquid coolant.
    Type: Application
    Filed: March 17, 2014
    Publication date: October 23, 2014
    Applicant: VARIAN MEDICAL SYSTEMS, INC.
    Inventors: Travis Lee Astle, David Craig Smith, Lawrence Wheatley Bawden, Jeffrey Steven Wassom
  • Integral liquid-coolant passageways in an x-ray tube
    Patent number: 8675819
    Abstract: Integral liquid-coolant passageways in an x-ray tube. In one example embodiment, an x-ray tube includes a can at least partially defining an evacuated enclosure, a cathode at least partially positioned within the evacuated enclosure, and an anode at least partially positioned within the evacuated enclosure. The can has first integral liquid-coolant passageways formed therein. The can is configured to have a liquid coolant circulated through the first integral liquid-coolant passageways to thereby cool the can without the can being submersed in a liquid coolant.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: March 18, 2014
    Assignee: Varian Medical Systems, Inc.
    Inventors: Travis Lee Astle, David Craig Smith, Lawrence Wheatley Bawden, Jeffrey Steven Wassom
  • Liquid metal containment in an x-ray tube
    Patent number: 8300770
    Abstract: Liquid metal containment in an x-ray tube. In one example embodiment, an x-ray tube anode assembly includes a stationary shaft terminated by a head and an anode connected to an anode hub. The anode hub is at least partially surrounding the head of the stationary shaft. The anode hub defines a hub opening through which the stationary shaft extends. The anode hub is configured to contain a volume of a liquid metal and to rotate around the stationary shaft. The anode hub also defines a catch space within the anode hub that is configured to catch the liquid metal in order to contain the liquid metal within the hub regardless of the orientation of the x-ray tube anode assembly.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: October 30, 2012
    Assignee: Varian Medical Systems, Inc.
    Inventors: Ward Vincent Coon, Dennis H. Runnoe, Lawrence Wheatley Bawden
  • INTEGRAL LIQUID-COOLANT PASSAGEWAYS IN AN X-RAY TUBE
    Publication number: 20120076278
    Abstract: Integral liquid-coolant passageways in an x-ray tube. In one example embodiment, an x-ray tube includes a can at least partially defining an evacuated enclosure, a cathode at least partially positioned within the evacuated enclosure, and an anode at least partially positioned within the evacuated enclosure. The can has first integral liquid-coolant passageways formed therein. The can is configured to have a liquid coolant circulated through the first integral liquid-coolant passageways to thereby cool the can without the can being submersed in a liquid coolant.
    Type: Application
    Filed: September 27, 2010
    Publication date: March 29, 2012
    Applicant: VARIAN MEDICAL SYSTEMS, INC
    Inventors: Travis Lee Astle, David Craig Smith, Lawrence Wheatley Bawden, Jeffrey Steven Wassom
  • LIQUID METAL CONTAINMENT IN AN X-RAY TUBE
    Publication number: 20120014509
    Abstract: Liquid metal containment in an x-ray tube. In one example embodiment, an x-ray tube anode assembly includes a stationary shaft terminated by a head and an anode connected to an anode hub. The anode hub is at least partially surrounding the head of the stationary shaft. The anode hub defines a hub opening through which the stationary shaft extends. The anode hub is configured to contain a volume of a liquid metal and to rotate around the stationary shaft. The anode hub also defines a catch space within the anode hub that is configured to catch the liquid metal in order to contain the liquid metal within the hub regardless of the orientation of the x-ray tube anode assembly.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 19, 2012
    Applicant: VARIAN MEDICAL SYSTEMS, INC.
    Inventors: Ward Vincent Coon, Dennis H. Runnoe, Lawrence Wheatley Bawden