Patents by Inventor Roger R. Hendrickson

Roger R. Hendrickson 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 preparing propellants by late addition of metallic fuel
    Patent number: 5859384
    Abstract: There is provided an improved process for preparing a composite propellant comprising (a) a polymeric binder, (b) a bonding agent, (c) a curing agent for the binder, (d) a metallic fuel, and (e) an ammonium salt oxidizer wherein the improvement resides in adding the metallic fuel to the propellant mix after all of the ammonium salt oxidizer has been added to the propellant mix.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: January 12, 1999
    Assignee: Cordant Technologies Inc.
    Inventors: Roger R. Hendrickson, R. Scott Hamilton
  • Composite solid propellants containing bitetrazoles
    Patent number: 4798637
    Abstract: Composite solid propellants are provided containing, in an amount effective to reduce the burning rate of the propellant, at least one bitetrazole compound.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: January 17, 1989
    Assignee: Morton Thiokol, Inc.
    Inventor: Roger R. Hendrickson