Patents by Inventor David Andraso

David Andraso 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).

  • Expansion joint fire barrier for walls
    Patent number: 6192641
    Abstract: Methods and apparatus for installing a fire rated insulation material to span an expansion joint between walls by hollowing out a portion of at least one wall adjacent to the joint to form at least one pocket, and installing the insulation material so that it spans the joint and can slide in and out of the at least one pocket.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: February 27, 2001
    Inventors: David Andraso, David Willke
  • Rollable fire-rated expansion joint
    Patent number: 6125601
    Abstract: A rollable fire-rated expansion joint comprising at least two heat resistant surfaces, at least two screens, each screen coupling together the at least two heat resistant surfaces, the coupled surfaces and screens defining the circumference of at least one cavity, and an insulator located within the at least one cavity.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: October 3, 2000
    Inventors: Vaughn Barnes, David Andraso