Patents by Inventor A. Lawrence Cobb

A. Lawrence Cobb 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).

  • Method for making a composite structure
    Patent number: 4239571
    Abstract: A method of forming a layered composite material of the type formed under heat and low pressure and to one outer surface of which a protective thermosetting polymer is bonded.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: December 16, 1980
    Assignee: Composite Technology Corporation
    Inventor: A. Lawrence Cobb
  • Foam impregnating apparatus
    Patent number: 4230521
    Abstract: An apparatus for forming continuous lengths of composite material comprised of a core of resilient and open-cell foam material impregnated with an uncured thermosetting resin and which core element is overlaid with at least one outer layer of a reinforcing material.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: October 28, 1980
    Assignee: Composite Technology Corporation
    Inventors: A. Lawrence Cobb, Leland D. DuBrock
  • Composite foam structure
    Patent number: 4157416
    Abstract: A composite structure comprising a layer of initially resilient foam material having open and connected cells one portion of which is impregnated with a first polymerizable resin system and another portion of which is impregnated with a second polymerizable resin system and which resin systems are concurrently polymerized while maintaining the resilient foam layer under compression whereby each polymerized resin is disposed as a continuous and rigid resin phase throughout respectively adjacent portions of said foam material.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: June 5, 1979
    Assignee: Composite Technology Corporation
    Inventor: A. Lawrence Cobb