Patents by Inventor Arthur G. Barnes

Arthur G. Barnes 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).

  • Iodophor compositions
    Patent number: 6565866
    Abstract: A class of water insoluble iodophors comprising complexes of iodine with various nylons such as nylon-4,6, nylon-6, nylon-6,6 or other polyamides is disclosed. These nylons complexed with iodine can be made in various forms such as powders, pellets, molded objects, granules, films, monofilaments, and either non-woven or woven fabrics. These nylon based iodophors and other water insoluble iodophors herein disclosed can find product applications in the fields of air treatment, water treatment, public hygiene and medicine.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: May 20, 2003
    Assignee: Puritek, Inc.
    Inventors: Kathy L. Gottlund, Arthur G. Barnes
  • Iodophor compositions
    Patent number: 6312705
    Abstract: A class of water insoluble iodophors comprising complexes of iodine with various nylons such as nylon-4,6, nylon-6, nylon-6,6 or other polyamides is disclosed. These nylons complexed with iodine can be made in various forms such as powders, pellets, molded objects, granules, films, monofilaments, and either non-woven or woven fabrics. These nylon based iodophors and other water insoluble iodophors herein disclosed can find product applications in the fields of air treatment, water treatment, public hygiene and medicine.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: November 6, 2001
    Assignee: Puritek, Inc.
    Inventors: Kathy L. Gottlund, Arthur G. Barnes
  • Polymerization of caprolactam with certain quaternary ammonium compounds
    Patent number: 5859178
    Abstract: A process for the polymerization of caprolactam to nylon-6 polymer, comprising the use of a polymerization accelerator having the structural formula ##STR1## wherein R.sup.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl, aryl and aralkyl radicals and mixtures thereof, and X is a halogen ion other than iodide and the temperature of said polymerization process is carried out at between about room temperature and about 115.degree. C.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: January 12, 1999
    Assignee: Puritek, Inc
    Inventors: Arthur G. Barnes, Kathy L. Gottlund
  • Simulator having two independently servo-controlled projection systems
    Patent number: 4352664
    Abstract: An air combat simulator including a part spherical screen, a remotely controlled horizon projector positioned so as to project onto the screen a scene consisting of sky and ground terrain, and a t.v. projection system for projecting onto the screen an image of an opponent's aircraft. A simulated manned aircraft consisting of a pilot's control station is positioned to view the screen and has flight controls arranged to generate flight control signals and a computer is arranged to control the horizon projector and opponent's aircraft image projector in dependence upon the flight control signals and upon a tactical decision making process programmed into the computer. To simulate range variation the size of the opponent's aircraft is varied by controlling the raster dimensions of a t.v. picture formed in the t.v. projection system, which system does not include a zoom lens.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: October 5, 1982
    Assignee: British Aerospace
    Inventors: Jeffrey Morrison, Stanley R. E. Dixon, Arthur G. Barnes