Patents by Inventor Carl L. Schirmer

Carl L. Schirmer 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).

  • Fluid-sealed sheet metal joint
    Patent number: 4155209
    Abstract: A fluid-sealed sheet metal joint includes a first and second sheet each having an edge with a turned-under flange. A clip includes a base with two parallel edges with a turned-over flange along each of these edges. A core has a cap with two parallel edges, and along each of these edges a U-shaped flange. This structure is assembled with various of the flanges overlapping and flattened to create a fluid sealing joint. Preferably there is also an elastomeric sealant in the joint.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: May 22, 1979
    Inventor: Carl L. Schirmer