Patents by Inventor IOANNIS K NIKOLOS

IOANNIS K NIKOLOS 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).

  • Control of ions
    Patent number: 9589777
    Abstract: A guide apparatus includes a vacuum compartment provided at a background pressure and having a gas inlet opening arranged for jetting a gas in the form of a free jet stream containing entrained ions into a vacuum chamber along a predetermined jetting axis. At least one duct housed within the vacuum chamber has a guide bore positioned coaxially with the jetting axis for receiving the free jet stream such that a supersonic free jet is formed in the duct with a jet pressure ratio P1/P2 restrained to a value that does not exceed (A/a)3 to form a subsonic laminar gas flow inside of the duct for guiding the entrained ions, where P1 is the pressure at an exit end of the gas inlet opening, P2 is the background pressure, A is the cross sectional area of the bore, and a is the cross sectional area of the gas inlet opening.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 7, 2017
    Inventors: Dimitris Papanastasiou, Emmanuel Raptakis, Diamantis Kounadis, Alexander Lekkas, Ioannis Orfanopoulos, Ioannis K Nikolos
  • IMPROVEMENTS IN AND RELATING TO THE CONTROL OF IONS
    Publication number: 20150340218
    Abstract: A guide apparatus includes a vacuum compartment provided at a background pressure and having a gas inlet opening arranged for jetting a gas in the form of a free jet stream containing entrained ions into a vacuum chamber along a predetermined jetting axis. At least one duct housed within the vacuum chamber has a guide bore positioned coaxially with the jetting axis for receiving the free jet stream such that a supersonic free jet is formed in the duct with a jet pressure ratio P1/P2 restrained to a value that does not exceed (A/a)3 to form a subsonic laminar gas flow inside of the duct for guiding the entrained ions, where P1 is the pressure at an exit end of the gas inlet opening, P2 is the background pressure, A is the cross sectional area of the bore, and a is the cross sectional area of the gas inlet opening.
    Type: Application
    Filed: June 25, 2013
    Publication date: November 26, 2015
    Applicant: FASMATECH SCIENCE & TECHNOLOGY SA
    Inventors: DIMITRIS PAPANASTASIOU, EMMANUEL RAPTAKIS, DIAMANTIS KOUNADIS, ALEXANDER LEKKAS, IOANNIS ORFANOPOULOS, IOANNIS K NIKOLOS