Patents by Inventor Karl F. Barr, Jr.

Karl F. Barr, Jr. 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).

  • Patent number: 5492104
    Abstract: An EGR transfer assembly includes a tubular conduit having a first end in communication with a source of exhaust gas and a second end located in an oversized opening in the engine intake manifold. A seal carrier configured as a cylindrical sleeve having a flanged portion at one end, is received over the second end of the conduit such that the cylindrical portion is inserted into the opening in circumjacent relationship to the conduit to define an insulating space therebetween. The flanged portion of the carrier limits the entry of the cylindrical sleeve into the manifold by seating against the manifold. Seals are disposed between the sleeve and the conduit and between the flange and the manifold to limit the leakage of air through the manifold opening. A spring member is seated between the seal carrier and a stop member and acts to seat the flanged portion against the manifold.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: February 20, 1996
    Assignee: General Motors Corporation
    Inventors: Jack E. Elder, Karl F. Barr, Jr.