Patents by Inventor Frank L. Zagar

Frank L. Zagar 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).

  • Muffler assembly
    Patent number: 5147987
    Abstract: A muffler for reducing noise associated with exhaust systems includes an assembly of exhaust tubes and drop-in baffles fixed inside channels defined in a clamshell-type muffler chamber formed from two stamp-formed mating external shells.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: September 15, 1992
    Assignee: Arvin Industries, Inc.
    Inventors: Larry E. Richardson, David W. Strickland, Frank L. Zagar, Richard C. Wilcox
  • Manifold tuning structure
    Patent number: 4779415
    Abstract: An exhaust manifold for attachment to an engine having a plurality of exhaust ports is provided. The exhaust manifold includes an exhaust conduit that is in fluid communication with selected exhaust ports, with the exhaust conduit being formed to include separate primary and auxiliary outlet openings. The exhaust manifold also includes a tuning tube that is formed to include an inlet opening that is in acoustic communication with the auxiliary outlet opening, and an outlet opening. The exhaust manifold also has a chamber for providing a static volume that is in acoustic communication with the outlet opening of the tuning tube.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: October 25, 1988
    Assignee: Arvin Industries, Inc.
    Inventors: Larry E. Richardson, Frank L. Zagar, George R. Snyder