Patents by Inventor Charles W. Lisa

Charles W. Lisa 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).

  • Source bushing shielding
    Patent number: 9006689
    Abstract: The source bushing assembly has a source bushing having an internal vacuum side and an external atmosphere side, a first shield of annular shape disposed at one end of the source bushing in spaced concentric relation to reduce formation of an electrically conductive coating on the source bushing, a second shield of annular shape disposed at an opposite end of the source bushing in spaced concentric relation to prevent arcing on the source bushing and an internally disposed concentric X-ray shield.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 14, 2015
    Assignee: ion Technology Solutions, LLC
    Inventors: Manuel A. Jerez, Carlos F. M. Borges, Charles W. Lisa, Alejandro M. Centeno
  • Source Bushing Shielding
    Publication number: 20140291554
    Abstract: The source bushing assembly has a source bushing having an internal vacuum side and an external atmosphere side, a first shield of annular shape disposed at one end of the source bushing in spaced concentric relation to reduce formation of an electrically conductive coating on the source bushing, a second shield of annular shape disposed at an opposite end of the source bushing in spaced concentric relation to prevent arcing on the source bushing and an internally disposed concentric X-ray shield.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 2, 2014
    Inventors: Manuel A. Jerez, Carlos F.M. Borges, Charles W. Lisa, Alejandro M. Centeno