Arming Devices Patents (Class 102/221)
  • Patent number: 4426932
    Abstract: An arming fuze for ordnance type munitions having but one movable part comprising a solvent desensitized liquid explosive contained in a ported (ventilated) cavity that is normally sealed by a sleeve. Upon movement of the sleeve and exposure of the liquid explosive within the cavity to the air, the liquid explosive loses a volatile solvent, the desenistizing agent, and becomes progressively more sensitive. A first embodiment is that of an inertia armed nose fuze for a projectile wherein the desensitized liquid explosive is enclosed in the cavity in a porous solid matrix. Upon rapid acceleration, as when the projectile is fired, the sleeve undergoes set-back thereby exposing the porous matrix to a violent slip stream of air and to a strong desiccating action. The liquid explosive rapidly loses solvent to the air, rapidly becoming more sensitive whereby it is impact sensitive by the time impact on the target occurs.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: January 24, 1984
    Assignee: Thiokol Corporation
    Inventor: Frank H. Bell
  • Patent number: 4404911
    Abstract: An arming fuze for ordnance type munitions having but one movable part comprising a solvent desensitized liquid explosive contained in a ported (ventillated) cavity that is normally sealed by a sleeve. Upon movement of the sleeve and exposure of the liquid explosive within the cavity to the air, the liquid explosive loses a volatile solvent, the desensitizing agent, and becomes progressively more sensitive. A first embodiment is that of an inertia armed nose fuze for a projectile wherein the desensitized liquid explosive is enclosed in the cavity in a porous solid matrix. Upon rapid acceleration, as when the projectile is fired, the sleeve undergoes set-back thereby exposing the porous matrix to a violent slip stream of air and to a strong desiccating action. The liquid explosive rapidly loses solvent to the air, rapidly becoming more sensitive whereby it is impact sensitive by the time impact on the target occurs.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: September 20, 1983
    Assignee: Thiokol Corporation
    Inventors: Frank H. Bell, John A. Peterson
  • Patent number: 4204475
    Abstract: The system of the present invention basically consists of a detector unit unted in each bomb or airborne weapon and operable upon interception of a signal emitted by an aircraft-mounted source. The required signal for arming is present only in a well defined zone below the aircraft and only in response to pilot command during weapon release. The signal consists of mechanically modulated beam of high-energy photons (gamma rays) emitted by a radioisotope source on the aircraft. The weapon must fall well below the aircraft to see the signal. Geiger-Mueller tubes are used for radiation detectors and the resulting signal is processed to initiate the arming or fuzing sequence. Power for the operation of the detector and associated electronics is transferred through the metallic covering of the weapon by means of a split-core transformer at the time of release.
    Type: Grant
    Filed: April 29, 1969
    Date of Patent: May 27, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Ronald J. Fowler
  • Patent number: 4202269
    Abstract: 2.
    Type: Grant
    Filed: October 15, 1958
    Date of Patent: May 13, 1980
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph R. Messineo, George F. Lehwald
  • Patent number: 4188885
    Abstract: A mechanical code convertor, munition arming device using same, and method of transmitting coded mechanical inputs are provided wherein such code convertor has an input member adapted to receive complementary mechanical driving movements, a mechanically locked output member, and apparatus mechanically connected between the input and output members for unlocking the locked output member and providing a desired motion thereof in response to correctly coded mechanical driving movements while maintaining such output member mechanically locked in response to incorrectly coded mechanical driving movements.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: February 19, 1980
    Assignee: Avco Corporation
    Inventors: Murray E. Wolf, Vincent Suozzo
  • Patent number: 4160417
    Abstract: The system of the present invention basically consists of a detector unit unted in each bomb or airborne weapon and operable upon interception of a signal emitted by an aircraft-mounted source. The required signal for arming is present only in a well defined zone below the aircraft and only in response to pilot command during weapon release. The signal consists of an unmodulated beam of high-energy photons (gamma rays) emitted by a radioisotope source on the aircraft. The weapon must fall well below the aircraft to see the signal. Geiger-Mueller tubes are used for radiation detectors and the resulting signal is processed to initiate the arming or fusing sequence. Power for the operation of the detector and associated electronics is transferred through the metallic covering of the weapon by means of a split-core transformer at the time of release.
    Type: Grant
    Filed: April 29, 1969
    Date of Patent: July 10, 1979
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Ronald J. Fowler