Patents by Inventor Richard A. Versen

Richard A. Versen 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).

  • Gypsum board/intumescent material fire barrier wall
    Patent number: 6182407
    Abstract: A gypsum board/intumescent material fire barrier wall includes spaced apart, vertically extending metal or wooden studs with only one layer of gypsum board secured to each side of the studs to form a fire barrier wall with a wall cavity. An intumescent material barrier, that is at least coextensive in width and height with the width and height of the wall cavity, is also included in the fire barrier wall and preferably, the wall cavity contains a fibrous insulation blanket. Preferably, the spaced apart gypsum wall boards, with the intumescent material barrier, provide the fire barrier wall with two hour fire-resistive properties meeting or exceeding ASTM test standard E119 for walls and partitions.
    Type: Grant
    Filed: December 24, 1998
    Date of Patent: February 6, 2001
    Assignee: Johns Manville International, Inc.
    Inventors: Kenneth A. Turpin, Richard A. Versen, Bradley Burdic, Reed H. Larson, Monroe W. Shumate