Patents by Inventor Adolph E. Oberth

Adolph E. Oberth 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).

  • Coatings for solid propellants
    Patent number: 5600088
    Abstract: This invention relates to improved polyurea coating compositions for particluate solids, and especially for fillers which are useful in solid rocket propellants. The composition is a copolymer of a primary or secondary amine and 3-nitrazapentane diisocyanate.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: February 4, 1997
    Assignee: Aerojet General Corporation
    Inventor: Adolph E. Oberth
  • Solid propellant composition
    Patent number: 4332632
    Abstract: A solid rocket propellant comprising (1) ammonium perchlorate, (2) alumin (3) poly(1,2-butylene) glycol, (4) the reaction product of propylene oxide and either trimethylolpropane, hexanetriol or mixtures thereof, (5) 2,3-dihydroxypropyl bis(2-cyanoethyl) amine, (6) hexamethylene diisocyanate, (7) copper chromite, (8) a carboxylic acid ester of either a diol and a monocarboxylic acid or a dicarboxylic acid and a monofunctional alcohol, and (9) sulfur and optionally containing (10) a metal acetylacetonate, (11) 2,4-pentanedione and (12) liquid silicon oil.
    Type: Grant
    Filed: July 6, 1971
    Date of Patent: June 1, 1982
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John A. Conyers, Adolph E. Oberth, George M. Santerre