Patents by Inventor David M. Wamre

David M. Wamre 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).

  • Storm door with counterbalance
    Patent number: 6640869
    Abstract: A storm door (20) ventilation through a screen (50) by either or both of slidable sashes (92, 93). The storm door may also utilize a flexible member (80) to secure a liner (30, 40, 53, 54) to a side, without the use of mechanical fasteners. Sash weight balancing assemblies are utilized in a three track door.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 4, 2003
    Assignee: Pella Corp.
    Inventors: James L. Ralph, Todd N. Stratmoen, David M. Wamre
  • Storm door with counterbalance
    Publication number: 20030121618
    Abstract: A storm door (20) ventilation through a screen (50) by either or both of slidable sashes (92, 93). The storm door may also utilize a flexible member (80) to secure a liner (30, 40, 53, 54) to a side, without the use of mechanical fasteners. Sash weight balancing assemblies are utilized in a three track door.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 3, 2003
    Inventors: James L. Ralph, Todd N. Stratmoen, David M. Wamre