Patents by Inventor Edward E. Hamel

Edward E. Hamel 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).

  • Energetic azidomethyl-substituted 1,3-dioxolanes
    Patent number: 5698718
    Abstract: Methylazide-substituted 1,3-dioxolanes of the generic formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently selected from H, C.sub.1 -C.sub.6 alkyl and CH.sub.2 N.sub.3 are disclosed as energetic plasticizers for rocket and gun propellants and explosives formulations. Methods of preparation of these compounds are also disclosed, in which halogen-substituted vicinal diols are reacted with aldehydes or ketones to form the halo-analog of the product, which is then converted to the product by reaction with a metal azide.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: December 16, 1997
    Assignee: Aerojet-General Corporation
    Inventors: Edward E. Hamel, Renato R. Rindone, Der-shing Huang
  • Energetic azide plasticizer
    Patent number: 5532390
    Abstract: Novel multi-azido formals, acetals and ketals are disclosed, having the following generic formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are independently selected from H, CH.sub.3, and CH.sub.2 N.sub.3, and methods of preparation of these compounds.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: July 2, 1996
    Assignee: Aerojet General Corporation
    Inventors: Renato R. Rindone, Der-Shing Huang, Edward E. Hamel
  • Energetic azidomethyl-substituted 1,3-dioxolanes
    Patent number: 5243057
    Abstract: Methylazide-substituted 1,3-dioxolanes of the generic formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently selected from H, C.sub.1 -C.sub.6 alkyl and CH.sub.2 N.sub.3 are disclosed as energetic plasticizers for rocket and gun propellants and explosives formulations. Methods of preparation of these compounds are also disclosed, in which halogen-substituted vicinal diols are reacted with aldehydes or ketones to form the halo-analog of the product, which is then converted to the product by reaction with a metal azide.
    Type: Grant
    Filed: March 7, 1989
    Date of Patent: September 7, 1993
    Assignee: Aerojet-General Corporation
    Inventors: Edward E. Hamel, Renato R. Rindone, Der-Shing Huang
  • Energetic azide plasticizer
    Patent number: 5220039
    Abstract: Novel multi-azido formals, acetals and ketals are disclosed, having the following generic formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are independently selected from H, CH.sub.3, and CH.sub.2 N.sub.3, and methods of preparation of these compounds.
    Type: Grant
    Filed: March 7, 1989
    Date of Patent: June 15, 1993
    Assignee: Aerojet General Corporation
    Inventors: Renato R. Rindone, Der-Shing Huang, Edward E. Hamel
  • Imide oxirane reactions
    Patent number: 3962182
    Abstract: This patent discloses and claims the reaction of oxirane-containing compounds with primary cyclic imide-containing compounds, at temperatures of from about 0.degree. to 225.degree.C, in the presence of active chromium III tricarboxylate salts which have unoccupied coordination sites.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: June 8, 1976
    Assignee: Aerojet-General Corporation
    Inventors: Roger B. Steele, Arthur Katzakian, Jr., Joseph J. Scigliano, Edward E. Hamel