Patents by Inventor James W. Hamner

James W. Hamner 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).

  • High solids ratio solid rocket motor propelant grains and method of construction thereof
    Patent number: 4915754
    Abstract: A high acceleration high performance solid rocket motor grain such as for a ballistic defense missile or rocket assisted projectile comprises a propellant material which includes a highly plasticized binder so that the grain has a solids ratio equal to at least about 95 percent. In order that the grain with such a solids ratio may have adequate strength and withstand high acceleration forces, a reticulated structure is embedded therein. A method of constructing a rocket motor having such a grain is also disclosed.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: April 10, 1990
    Assignee: Morton Thiokol, Inc.
    Inventors: James O. Hightower, Jr., Tomio Sato, James W. Hamner, Carl M. Rector
  • High solids ratio solid rocket motor propellant grains and method of construction thereof
    Patent number: 4764319
    Abstract: A high acceleration high performance solid rocket motor grain such as for a ballistic defense missile or rocket assisted projectile comprises a propellant material which includes a highly plasticized binder so that the grain has a solids ratio equal to at least about 95 percent. In order that the grain with such a solids ratio may have adequate strength and withstand high acceleration forces, a reticulated structure is embedded therein. A method of constructing a rocket motor having such a grain is also disclosed.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: August 16, 1988
    Assignee: Morton Thiokol, Inc.
    Inventors: James O. Hightower, Jr., Tomio Sato, James W. Hamner, Rector, Carl M.
  • Technique for improving processibility of certain composite propellants by calcining the iron oxide burning rate catalyst
    Patent number: 4120709
    Abstract: A technique for improving the processibility of composite propellants through reduction of the catalytic effect of iron oxide upon the polymer/curing agent reaction.
    Type: Grant
    Filed: April 25, 1973
    Date of Patent: October 17, 1978
    Assignee: Thiokol Corporation
    Inventors: James W. Hamner, James O. Hightower, Carl M. Rector
  • Solid propellant with alumina burning rate catalyst
    Patent number: 4084992
    Abstract: Finely divided aluminum oxide increases the burning rate, reduces the pressure exponent at high pressures and stabilizes the combustion of solid propellant compositions.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: April 18, 1978
    Assignee: Thiokol Corporation
    Inventors: James O. Hightower, James W. Hamner, Richard L. Matthews