Flare Patents (Class 102/336)
  • Patent number: 4640193
    Abstract: A container adapted for insertion into a device is disclosed wherein the container has fitted into its hollow interior the components required to form therein and eject therefrom a chemiluminescent light emitting material.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: February 3, 1987
    Assignee: American Cyanamid Company
    Inventor: Anthony Koroscil
  • Patent number: 4624186
    Abstract: An infrared radiation-emitting projectile includes a casing and a contact head attached thereto, the casing containing an igniter-destructor capsule centrally positioned therein which contains an igniter-destructor charge, a layer of combustible flakes between the igniter-destructor capsule and the side wall of the casing, and an ignition-expediting material such as red phosphorus between the igniter-destructor capsule and the side wall of the casing.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: November 25, 1986
    Assignee: Buck Chemisch-Technische Werke GmbH & Co.
    Inventors: Axel Widera, Alois Schiessl, Walter Hanser, Peter Rayer, Klaus Hieke
  • Patent number: 4463679
    Abstract: The present invention relates to pyrotechnic flares. A hollow support structure (1) receives a first pyrotechnic composition (2) with a delay action internally and axially, whereas it receives a second pyrotechnic composition (4) which is slower than the first, in holes (101 to 151), arranged radially and of decreasing length. An initiator (3) initiates the composition (2) on the side where the radial through-holes are longest. Located outside is an illuminating composition (5), which may thus be illuminated virtually at the same time over the entire length of the product.Application in particular as an optical or infra-red counter-measure.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: August 7, 1984
    Assignee: Etienne Lacroix Tous Artifices SA
    Inventor: Alain Billard
  • Patent number: 4452039
    Abstract: An IR source and method for generating IR radiation whereby a propellant is urned in a first chamber to produce a product gas which is exited through a critical exit, is accelerated to a supersonic velocity by expanding into a second chamber, is passed through a standing shock wave in the chamber to reduce the gas velocity to a subsonic level, is exited through radial orifices into a larger third chamber where the gas is mixed to obtain a substantial uniformity in temperature and specie, is accelerated by expansion to a chosen subsonic velocity, and is exhausted to the atmosphere.
    Type: Grant
    Filed: July 6, 1983
    Date of Patent: June 5, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Harry L. Hodgkins, John K. Reingruber, Kenneth E. Harwell
  • Patent number: 4435481
    Abstract: Pyrophorically activated surfaces of metal foil or screen, prepared by diffusing into surface a selectably removable second metal that is then selectively removed as by leaching, can be covered with reactive or inert materials. Reactive materials such as easily ignited metals or carbon or decomposable chemicals increase the heat generated by pyrophoric action. Inert materials slow down or prevent pyrophoric action. Pressure-sensitive adhesive tape in which the adhesive is of the non-transfer or transfer types can be adhered to pyrophorically activated surfaces to slow down action or to adhere material that reduces or increases severity of pyrophoric action. Pyrophoric Ni can be preserved for many months in alkaline solutions such as aqueous KOH, NaOH and triethanolamine. Pyrophoric Fe is prepared and preserved in aqueous alkaline stannite. Even better preservation is obtained for Ni and Fe with glycerine, ethylene glycol, triethanolamine and propylene oxide.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: March 6, 1984
    Assignee: Alloy Surfaces Company, Inc.
    Inventor: Alfonso L. Baldi
  • Patent number: 4380957
    Abstract: A fusee is provided including a tubular housing containing a pyrotechnic mixture and one end of the housing includes a match head defining an outwardly opening central cavity therein. A cover sleeve including a central partition therein is provided and defines opposite end outwardly opening recesses on opposite sides of the partition. A scratch mix central projection is supported within one of the recesses on the corresponding side of the partition and the cover sleeve is removably telescoped over the match head supporting end of the housing with that housing end telescoped into the other of the recesses. The cover sleeve is alternately telescopingly engageable over the match head supporting end of the housing with the match head end received in the scratch mix projection containing recess and in position with the projection frictionally telescoped into the cavity of the match head for igniting the same.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: April 26, 1983
    Inventor: Jesse K. Makainai, Jr.
  • Patent number: 4349612
    Abstract: A metal web having a pyrophoric surface is coated by a solid or liquid that does not block the pyrophoric property and undergoes a pyrophoricity-intensifying exothermic change when subjected to the pyrophoricity of that surface.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: September 14, 1982
    Assignee: Alloy Surfaces Company, Inc.
    Inventor: Alfonso L. Baldi
  • Patent number: 4299166
    Abstract: A dispenser retains a hermetically sealed metal canister which holds a pyrophoric fluid, radar chaff, other electronic countermeasure materials or a combination thereof for ejection from an aircraft. Several openings in the canister are sealed with Pyrofuze foil material closures and a Pyrofuze wire braid is interconnected between each of the closures and the canister in close proximity to a Pyrofuze delay braid having one end thereof fixedly attached to the canister. A safety tab on one corner of the canister extends downward between the delay braid and the wire braid to prevent cross ignition until the canister is fully ejected from the dispenser. When a gas producing squib on the dispenser is fired, the Pyrofuze delay braid is ignited by the flame front from the squib and the canister is forced from the dispenser causing the safety tab to be automatically removed from the canister.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: November 10, 1981
    Assignee: The United States of American as represented by the Secretary of the Air Force
    Inventors: Donald J. Carignan, William Lewis