Patents by Inventor Geoffrey Ian Evans

Geoffrey Ian Evans 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).

  • Propellant compositions with nitrocellulose and a polymer
    Patent number: 6042663
    Abstract: A rubbery polymer is produced in situ in a cast double base propellant composition.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: March 28, 2000
    Assignee: Royal Ordnance plc
    Inventors: Geoffrey Ian Evans, Denis Facer, Michael J. Ruston
  • Multiple base propellant with combustion inhibitor
    Patent number: 6026749
    Abstract: A combustion inhibiting composition for use in conjunction with a solid, gas-generating charge, the composition comprising an organic polymeric material containing an oxygen-containing organic filler compatible with said polymeric material, the oxygen to carbon atom ratio of the composition being at least 1:3.
    Type: Grant
    Filed: February 3, 1978
    Date of Patent: February 22, 2000
    Assignee: Imperial Metal Industries (KYNOCH) Limited
    Inventors: Stuart Gordon, Geoffrey Ian Evans
  • Combustion inhibited rocket propellants
    Patent number: 4092186
    Abstract: Solid propellant charge bonded directly to combustion inhibition material comprising elastomeric or polymeric material containing a compatible particulate filler material constituting at least 50wt.% of the combustion inhibition material.
    Type: Grant
    Filed: June 1, 1977
    Date of Patent: May 30, 1978
    Assignee: Imperial Metal Industries (Kynoch) Limited
    Inventors: Stuart Gordon, Geoffrey Ian Evans
  • Solid propellant with inhibitor layer in rocket motor
    Patent number: 3991565
    Abstract: A method of inhibiting combustion of some of the surfaces of a solid propellant charge for or in a rocket motor comprising bonding to said surfaces an elastomeric compound resistant to permeation by combustible components of the charge, and bonding a combustion inhibiting cellulosic derivative to the elastomeric compound, the cellulosic derivative being spaced from said surfaces by the elastomeric compound. The invention also relates to a rocket motor provided with a solid propellant charge inhibited in accordance with the method.
    Type: Grant
    Filed: March 12, 1969
    Date of Patent: November 16, 1976
    Assignee: Imperial Metal Industries (Kynoch) Limited
    Inventors: Stuart Gordon, Geoffrey Ian Evans, Philip Graham Jones
  • Suppression of unstable burning in rocket motors
    Patent number: 3958417
    Abstract: A method of suppressing unstable burning in a solid propellant rocket motor comprising combusting a silicone elastomer with burning of the solid propellant to produce a continuous stream of small silica particles which suppress instability.
    Type: Grant
    Filed: November 14, 1967
    Date of Patent: May 25, 1976
    Assignee: Imperial Metal Industries (Kynoch) Limited
    Inventors: Stuart Gordon, Geoffrey Ian Evans, Philip Graham Jones, Stephen William Bell