Patents by Inventor David M. Blakeman

David M. Blakeman 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).

  • Thermoplastic thermoformable composite material and method of forming such material
    Patent number: 5571607
    Abstract: A thermoplastic resin defines a core of a thermoformable thermoplastic composite material. The core is sufficiently thick to provide for a shaping of the composite material at an elevated temperature to any desired configuration. First and second layers of fabric material are disposed on opposite sides of the core. The fabric material may be formed of glass, carbon or aramid and may be formed from woven fibers, unidirectional or chopped fibers or random strand mats. The fabric layers have a thickness sufficient to impart strength and rigidity to the fabric material. Layers of a thermoplastic thermoformable resin material may be disposed on the layers of the fabric material. The thermoplastic layers impregnate the fabric layers, bond the fabric layers to the core and provide a smooth external surface to the composite material.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: November 5, 1996
    Assignee: Medical Materials Corporation
    Inventors: David M. Blakeman, Douglas R. Fitchmun, Niran Perera
  • Thermoplastic thermoformable composite material and method of forming such material
    Patent number: 5525412
    Abstract: A thermoplastic resin defines a core of a thermoformable thermoplastic composite material. The core is sufficiently thick to provide for a shaping of the composite material at an elevated temperature to any desired configuration. First and second layers of fabric material are disposed on opposite sides of the core. The fabric material may be formed of glass, carbon or aramid and may be formed from woven fibers, unidirectional or chopped fibers or random strand mats. The fabric layers have a thickness sufficient to impart strength and rigidity to the fabric material. Layers of a thermoplastic thermoformable resin material may be disposed on the layers of the fabric material. The thermoplastic layers impregnate the fabric layers, bond the fabric layers to the core and provide a smooth external surface to the composite material.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: June 11, 1996
    Assignee: Medical Materials Corporation
    Inventors: David M. Blakeman, Douglas R. Fitchmun, Niran Perera
  • Thermoplastic thermoformable composite material and method of forming such material
    Patent number: 5354604
    Abstract: A thermoplastic resin defines a core of a thermoformable thermoplastic composite material. The core is sufficiently thick to provide for a shaping of the composite material at an elevated temperature to any desired configuration. First and second layers of fabric material are disposed on opposite sides of the core. The fabric material may be formed of glass, carbon or aramid and may be formed from woven fibers, unidirectional or chopped fibers or random strand mats. The fabric layers have a thickness sufficient to impart strength and rigidity to the fabric material. Layers of a thermoplastic thermoformable resin material may be disposed on the layers of the fabric material. The thermoplastic layers impregnate the fabric layers, bond the fabric layers to the core and provide a smooth external surface to the composite material.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: October 11, 1994
    Assignee: Medical Materials Corporation
    Inventors: David M. Blakeman, Douglas R. Fitchmun, Niran Perera