Patents by Inventor Frank J. Schwan

Frank J. Schwan 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).

  • Fiber reinforced composite shaft with metal connector sleeves secured by adhesive
    Patent number: 4259382
    Abstract: A tubular fiber reinforced composite shaft comprises a shaft body formed of a plurality of integrally bonded circumferential plies of solidified fiber reinforced resinous material. A metal sleeve is mounted in at least one end of the shaft body. A layer of adhesive material is disposed between an outer surface of the metal sleeve and an inner surface of the shaft body to bond the sleeve to the body. A portion of the body located adjacent an inner end of the adhesive layer is of enlarged radial thickness. A portion of the sleeve located adjacent the inner end of the adhesive layer may be of enlarged radial thickness.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: March 31, 1981
    Assignee: Celanese Corporation
    Inventor: Frank J. Schwan