Patents by Inventor Mark Stira

Mark Stira 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).

  • Integrated rough/purge/vent (RPV) valve
    Publication number: 20050204753
    Abstract: A single ducted valve assembly provides an integrated cryopump valve having a purge valve port connecting the assembly to a cryopump with a coaxial connection having an inner duct and an outer duct. A pressurized gas interface connects a pressurized gas source to the cryopump through the inner duct. A rough valve port can connect the outer duct of the assembly to a rough vacuum pump; and a relief valve port can connect the outer duct of the assembly to an exhaust stack.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 22, 2005
    Applicant: Helix Technology Corporation
    Inventors: Allen Bartlett, Gary Ash, Brian Thompson, Mark Stira