Patents by Inventor Robert Stimac

Robert Stimac 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).

  • Patent number: 7067800
    Abstract: A method for the quantitative analysis of the impurities content in nitrogen, hydrogen or oxygen by means of ion mobility spectrometry is described. The method involves using pure argon or a mixture, having no impurities, containing argon and the gas to be analyzed, as a counterflow gas in the separation zone of the ion mobility spectrometer.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: June 27, 2006
    Assignee: Saes Getters S.p.A.
    Inventors: Luca Pusterla, Marco Succi, Antonio Bonucci, Robert Stimac
  • Patent number: 6895339
    Abstract: A method is provided for measuring by ionization mobility spectrometry (IMS) relatively high concentrations of water in argon, hydrogen, nitrogen and/or helium, including the following steps: (a) introducing the gas to be analyzed into an IMS instrument with a counter-flow of pure gas; (b) obtaining a signal variable over time and proportional to the number of ions detected by an ion detector of the IMS instrument; (c) determining two time intervals (A, B) corresponding to the drift times in the IMS instrument of the H3O+ and (H2O)2+ ions; (d) obtaining the peaks of the signal in the two determined time intervals (A, B); and (e) calculating the water concentration in the gas to be analyzed according to the ratio between the intensity of the two peaks obtained in the signal.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: May 17, 2005
    Assignee: Saes Getters S.p.A
    Inventors: Luca Pusterla, Antonio Bonucci, Marco Succi, Robert Stimac
  • Publication number: 20040111222
    Abstract: A method for measuring by means of ionization mobility spectrometry relatively high concentrations of water in argon, hydrogen, nitrogen and helium, characterized by comprising the followings operative steps:
    Type: Application
    Filed: November 25, 2003
    Publication date: June 10, 2004
    Applicant: SAES GETTERS S.p.A
    Inventors: Luca Pusterla, Antonio Bonucci, Marco Succi, Robert Stimac
  • Patent number: 6740873
    Abstract: A method for carrying out nitrogen analysis by ionization mobility spectroscopy at concentrations of few parts per billion (ppb) in argon is described. The method involves the addition of hydrogen in concentration of at least 5 ppb and lower than 100 parts per million (ppm) to the argon to be analyzed; the hydrogen addition step may be preceded by a purification operation of the argon flow to reduce the total concentration of impurities other than nitrogen to under 1 ppb.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: May 25, 2004
    Assignee: Saes Getters S.p.A.
    Inventors: Luca Pusterla, Robert Stimac, Antonio Bonucci, Marco Succi
  • Publication number: 20040053420
    Abstract: A method for the quantitative analysis of the concentration of impurities in helium by means of ion mobility spectrometry is described, which consists in using purified argon together with the helium which has to be analyzed for forming the sample, or pure argon as counterflow gas in the separation zone of the instrument, or finally helium-purified argon mixtures both for the sample gas and for the counterflow gas.
    Type: Application
    Filed: June 23, 2003
    Publication date: March 18, 2004
    Applicant: SAES GETTERS S.p.A.
    Inventors: Luca Pusterla, Marco Succi, Antonio Bonucci, Robert Stimac
  • Publication number: 20030209664
    Abstract: A method for the quantitative analysis of the impurities content in nitrogen, hydrogen and oxygen by means of ion mobility spectrometry is described, consisting in using argon, or a mixture containing no impurities and consisting of the gas which has to be analyzed and argon, as a counterflow gas in the separation zone of the ion mobility spectrometer.
    Type: Application
    Filed: June 9, 2003
    Publication date: November 13, 2003
    Applicant: SAES GETTERS S.p.A.
    Inventors: Luca Pusterla, Marco Succi, Antonio Bonucci, Robert Stimac
  • Publication number: 20030201388
    Abstract: A method for carrying out nitrogen analysis by ionization mobility spectroscopy, at concentrations of few parts per billion (ppb) in argon is described. The method involves the addition of hydrogen in concentration of at least 5 ppb and lower than 100 parts per million (ppm) to the argon to be analyzed; the hydrogen addition step is possibly preceded by a purification operation of the argon flow, so as to reduce the total concentration of impurities other than nitrogen under 1 ppb.
    Type: Application
    Filed: May 16, 2003
    Publication date: October 30, 2003
    Applicant: SAES GETTERS S.p.A.
    Inventors: Luca Pusterla, Robert Stimac, Antonio Bonucci, Marco Succi