Patents by Inventor Thomas E. Trnka

Thomas E. Trnka 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 for reticulating perforated sheets
    Patent number: 4990201
    Abstract: A novel method is provided for reticulating adhesive-backed, perforated substrates. The method entails tacking a continuous sheet of viscous reticulating adhesive to one side of the substrate and then contacting the other side with heated air. The temperature of the air is regulated such that the adhesive softens and bubbles over the perforations but final cure is not initiated. The air is directed at a velocity such that the bubbles burst and the adhesive is redeposited onto the adhesive-side of the substrate.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: February 5, 1991
    Assignee: The Boeing Company
    Inventor: Thomas E. Trnka