Patents by Inventor Clive Robert Sowry

Clive Robert Sowry 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).

  • Tire inflation apparatus
    Patent number: 5992476
    Abstract: The invention relates to a method of inflating a tire comprising the steps of:providing a tire mounted on a rim, said tire comprising a tire valve to allow selective inflation or deflation of said tire, said tire being filled with a certain amount of air;deflating said tire to reach a pressure which is less than or equal to a predetermined low pressure, said predetermined low pressure being lower than atmospheric pressure;inflating said tire with a source of inert gas to reach a pressure at least equal to a pressure greater than atmospheric pressure, to obtain inside said tire a gas mixture comprising between 5% O.sub.2 by volume and 0.5% O.sub.2 by volume.It also relates to a tire evacuation apparatus specially adapted thereto.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: November 30, 1999
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Clive Robert Sowry
  • Tire inflation method and apparatus
    Patent number: 5906227
    Abstract: The invention relates to a method of inflating a tire comprising the steps of:providing a tire mounted on a rim, said tire comprising a tire valve to allow selective inflation or deflation of said tire, said tire being filled with a certain amount of air;deflating said tire to reach a pressure which is less than or equal to a predetermined low pressure, said predetermined low pressure being lower than atmospheric pressure;inflating said tire with a source of inert gas to reach a pressure at least equal to a pressure greater than atmospheric pressure, to obtain inside said tire a gas mixture comprising between 5% O.sub.2 by volume and 0.5% O2 by volume.It also relates to a tire evacuation apparatus specially adapted thereto.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: May 25, 1999
    Assignee: L'Air Liquide, Societe Anonyme Pour L'etude et L'Exploiatation Des Procedes Georges Claude
    Inventor: Clive Robert Sowry