Patents by Inventor Carl A. Heller

Carl A. Heller 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).

  • Field detection of 2,4,6-trinitrotoluene in water by ion-exchange resins
    Patent number: 4496520
    Abstract: A method and a device for the detection of trinitrotoluene (TNT) in efflu water from the purification apparatus of ammunition plants is described. The tube detector utilizes a basic oxide section to convert the TNT to its Meisenheimer anions, followed by an alkyl quaternary ammonium chloride ion-exchange resin which collects the colored anions. The length of the resultant stain is proportional to the concentration of TNT in the water.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: January 29, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Carl A. Heller, Eric D. Erickson, Sterling R. Greni
  • Process of making a holographic optical article
    Patent number: 4374189
    Abstract: A holographic optical article of manufacture and a process for making it made from a polymeric material in the form of film which is transparent in the infrared region and which is photochemically modified to change its index of refraction.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: February 15, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Carl A. Heller, Warren J. Murbach
  • Analytical method for TNT in water
    Patent number: 4108604
    Abstract: A method for analyzing water for .alpha.-trinitrotoluene comprising the ss of allowing the water to flow over an ion exchange resin which contains a quaternary ammonium group and observing to determine whether or not a chemical reaction takes place.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: August 22, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Carl A. Heller
  • Chemiluminescent warning capsules
    Patent number: 4089797
    Abstract: An air-reactive chemiluminescent formulation is encapsulated and material ich will catalyze the reaction of the formulation with air is affixed to the outside of the capsule. When the capsule is crushed, the formulation, air and the catalyst all come into contact with one other and high intensity light is produced rapidly.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: May 16, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Carl A. Heller, Herbert P. Richter, Rudolph J. Marcus
  • Method of producing light using catalyst chemiluminescent system
    Patent number: 3969263
    Abstract: Tetraalkylammonium trifluoroacetates, lithium trifluoroacetate and sodium ifluoroacetate are disclosed as being useful as catalysts in chemiluminescent systems wherein a hydrogen peroxide component and an oxalate ester-fluorescer component are mixed and reacted to produce light.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: July 13, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Herbert P. Richter, Carl A. Heller, Ruth E. Tedrick
  • Chemiluminescent foldable signal device
    Patent number: 3934539
    Abstract: A signal device combining a fluorescent or phosphorescent light tube and a ovel base to be thrown or dropped from a vehicle as a warning marker. The light tube may be of the chemically actuated type and the base preferably has four pivotally attached resilient legs serving to ensure that the device will assume an angular position of about 45.degree. when dropped.
    Type: Grant
    Filed: March 26, 1974
    Date of Patent: January 27, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Steven M. Little, Robert L. Gerber, Carl A. Heller, Vincent J. Esposito