Organic Dye Or Coloring Agent Patents (Class 149/84)
  • Patent number: 6558487
    Abstract: A smoke generating composition including at least one smoke generating material and an effective amount of a polymerized monosaccharide or disaccharide as a binder. The polymerized monosaccharide or disaccharide serves the dual purpose of being both a binder and a fuel to provide a more efficient and safer smoke generating composition.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: May 6, 2003
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Raef M. Tadros
  • Patent number: 5061329
    Abstract: High nitrogen smoke compositions capable of rapid dispersion of smoke dyes nd capable of low temperature deflagration. Some compositions are capable of flameless deflagration in air. Compositions include pressed mixtures of 5,5'-bitetrazole and smoke dyes such as red, green, or yellow dyes. Other compositions include cast cured mixtures of azido binders such as glycidyl azide polymer and dyes, some of these compositions also including 5,5'-biterazole or an ammonium salt of 5-nitraminotetrazole.
    Type: Grant
    Filed: August 3, 1982
    Date of Patent: October 29, 1991
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Russell Reed, Jr., May L. Chan
  • Patent number: 4225368
    Abstract: This invention relates to organic dye compositions of improved mechanical properties and to a method of coating the dye with an inert coating material which enables the production of pour-castable colored smoke-producing compositions of high solids loading, particularly when a red dye e.g. Disperse Red 9, is employed.
    Type: Grant
    Filed: June 26, 1979
    Date of Patent: September 30, 1980
    Assignee: Canadian Department of National Defence
    Inventors: Joseph E. G. Couture, Joseph N. A. Roy
  • Patent number: 4032374
    Abstract: A non-toxic smoke composition for use in simulating fires in damage control xercises and for use in training. Transcinnamic acid is used as the smoke producing agent and is volatilized by energy from a potassium chlorate/sugar mixture which provides a low burning temperature.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: June 28, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bernard E. Douda, John E. Tanner, Jr.
  • Patent number: 3960087
    Abstract: A pyrotechnic signal providing smoke and flame and which is launchable from nderwater. Launching of the signal from underwater arms the signal, however, the signal is not initiated until the ambient sea pressure reaches a predetermined pressure valve. When this predetermined pressure valve is reached, sea water enters a cavity and energizes a battery which detonates an electric squib. The squib, in turn, ignites a smoke composition in the signal housing.
    Type: Grant
    Filed: October 4, 1974
    Date of Patent: June 1, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bobby D. Beatty, Russell D. Daniel, Billy J. Humerickhouse, Gary G. Norris
  • Patent number: H227
    Abstract: This invention relates to a smoke-producing composition containing a dye 1,4,- benzenedicarboxylic acid. The acid is useful for purging slag and solid clinker while lowering the steady state burning temperature of the composition. The coloring agent used by the composition does not degrade. The acid is an efficient coolant for the composition and takes advantage of sublimation reactions to produce the properties enumerated here.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: March 3, 1987
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Gene V. Tracy, Joseph A. Domanico, Gerald P. Young
  • Patent number: H231
    Abstract: The composition of this invention is a colored-smoke pyrotechnic for use as rocket fuel which can propel a 500 gram grenade assembly along a trajectory of about 100 meters while producing a trail of intensely colored, highly visible smoke. The composition contains ammonium sulfamate, potassium chlorate, sucrose, and an organic dye. The sulfamate ingredient functions as a primary reactant, and forms a large quantity of smoke and other gaseous by-products. The potassium chlorate and sucrose exists as a mixture, and when burning produces a large amount of energy which initiates the reaction sequence. The organic dye in the composition is volatilized by the heat, and subsequently condenses in the exhaust plume to color the smoke trail.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: March 3, 1987
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Gerald P. Young