Patents by Inventor Robert L. Noland

Robert L. Noland 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).

  • Carbon fibers
    Patent number: 5360669
    Abstract: Microcellular carbon filaments having a specific gravity about 20-30% less than conventional carbon fibers made of the same precursor resin are formed by foaming the precursor resin during spinning. These low density microcellular carbon filaments, which may also be hollow, have improved insulation properties compared with conventional carbon fibers, they have a higher than expected strength to weight ratio and adhere in a superior fashion to a variety of matrix materials.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: November 1, 1994
    Assignee: Ketema, Inc.
    Inventors: Robert L. Noland, Timothy D. O'Brien
  • Hollow carbon fibers
    Patent number: 5338605
    Abstract: Hollow carbon and graphite filaments having a specific gravity of about 20-50% less than conventional solid carbon fibers made of the same precursor resin are formed by spinning hollow precursor resin filaments. These low density hollow carbon filaments have improved insulating properties compared with conventional solid carbon fibers and have an excellent bending strength to weight ratio.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: August 16, 1994
    Assignee: Ketema, Inc.
    Inventors: Robert L. Noland, Timothy D. O'Brien
  • Ablative and insulative structures and microcellular carbon fibers forming same
    Patent number: 5298313
    Abstract: Microcellular carbon filaments having a specific gravity no greater than about 1.4 are formed from PAN foamed filaments by carbonizing. These low density carbon filaments, which may also be hollow, have improved insulation properties compared with conventional PAN precursor carbon fibers and can be used as a replacement to rayon precursor carbon fibers where greater insulation is necessary.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: March 29, 1994
    Assignee: Ketema Inc.
    Inventor: Robert L. Noland