Patents by Inventor Ralph A. Boyne

Ralph A. Boyne 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).

  • Flared combustion chamber
    Patent number: 4230447
    Abstract: Apparatus for producing a high velocity stream of gas, for example, for treating a road surface, including an elongate combustion chamber having, along its lower surface, a plurality of discharge orifices, preferably arranged in a line, means to feed combustion gases into the upper portion of the combustion chamber and means to deflect the incoming gases, so that they are distributed within the combustion chamber prior to leaving the combustion chamber through the discharge orifices.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: October 28, 1980
    Assignee: Thormack Engineering Ltd.
    Inventors: Ralph A. Boyne, Richard L. Cottingham
  • Grit blasting apparatus
    Patent number: 4165587
    Abstract: A method and apparatus for grit blasting in which fuel and air are combusted in a flashback combustion chamber to produce a high velocity gas blasting jet and a stream of grit is introduced into the blasting jet.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: August 28, 1979
    Assignee: Thormack Engineering Limited
    Inventors: Richard L. Cottingham, Ralph A. Boyne