Patents by Inventor Jorma Valkama

Jorma Valkama 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).

  • Method and apparatus for heating glass
    Patent number: 6881931
    Abstract: A method and apparatus for heating glass, in which glass (4) is heated upon rollers (3) in a tempering furnace (1) from above and below of the glass (4). At least the upper surface of the glass (4) is heated with hot air jets directed substantially perpendicularly relative to the surface of the glass (4). The air jets have been provided by sucking air mainly from the inside of the furnace and by pressurizing the air taken from the inside of the tempering furnace (1) to an overpressure of over 0.1 bar relative to the pressure in the tempering furnace (1).
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: April 19, 2005
    Assignee: Uniglass Engineering Oy
    Inventors: Jukka Vehmas, Jorma Valkama
  • Method and apparatus for heating glass
    Publication number: 20040232135
    Abstract: A method and apparatus for heating glass, in which glass (4) is heated upon rollers (3) in a tempering furnace (1) from above and below of the glass (4). At least the upper surface of the glass (4) is heated with hot air jets directed substantially perpendicularly relative to the surface of the glass (4). The air jets have been provided by sucking air mainly from the inside of the furnace and by pressurizing the air taken from the inside of the tempering furnace (1) to an overpressure of over 0.1 bar relative to the pressure in the tempering furnace (1).
    Type: Application
    Filed: June 30, 2004
    Publication date: November 25, 2004
    Applicant: UNIGLASS ENGINEERING OY
    Inventors: Jukka Vehmas, Jorma Valkama
  • Method and apparatus for heating glass
    Patent number: 6776008
    Abstract: A method and apparatus for heating glass, in which glass (4) is heated upon rollers (3) in a tempering furnace (1) from above and below of the glass (4). At least the upper surface of the glass (4) is heated with hot air jets directed substantially perpendicularly relative to the surface of the glass (4). The air jets have been provided by sucking air mainly from the inside of the furnace and by pressurizing the air taken from the inside of the tempering furnace (1) to an overpressure of over 0.1 bar relative to the pressure in the tempering furnace (1).
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: August 17, 2004
    Assignee: Uniglass Engineering Oy
    Inventors: Jukka Vehmas, Jorma Valkama