Patents by Inventor Dennis E. Maziekien

Dennis E. Maziekien 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).

  • Foldable and expandable pitch pocket and method of forming same
    Patent number: 5605019
    Abstract: A foldable and expandable pitch pocket for encompassing an element such as a vent pipe protruding from a roof structure. The pitch pocket is initially an elongated piecepart which is arranged with slits on a horizontal wall and notches on the vertical wall aligned with the slits, thereby making it feasible to use light hand pressure to bend creases in the vertical wall to obtain the folded pitch pocket. A slot and tab cooperatively arranged interlock the vertical wall to fixedly hold the folded shape of the pitch pocket.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: February 25, 1997
    Inventors: Dennis E. Maziekien, Edward F. Maziekien