Patents by Inventor Edward Cundasawmy

Edward Cundasawmy 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).

  • Patent number: 6405626
    Abstract: A method and foam formulation are provided for enabling both blast suppressing and decontamination, particularly desirable when faced with an explosive device which has been rigged with a contaminant for destructive dissemination. A formulation is foamed to surround the explosive CB contaminant device, preferably encapsulated in a containment structure. The preferred composition of foamer-compatible decontaminant and foamer to foam and surround the device is about 1% to 3%/w of hydrated chloroisocyanuric acid salts and more including lithium hypochlorite, about 1% of a co-solvent selected from the group consisting of polypropylene glycols, polyethylene glycols, and derivatives and mixtures thereof; about 1% to about 5% of a surfactant and foam stabilizer; and a buffer system to initially maintain said formulation at a pH from about 11.0 to about 8.5 for a minimum of 30 minutes; and the balance being water.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: June 18, 2002
    Assignee: Her Majesty the Queen in right of Canada as represented by the Solicitor General Acting through the Commissioner of the Royal Canadian Mounted Police
    Inventors: John G. Bureaux, George R. Cowan, N. Edward Cundasawmy, J. Garfield Purdon
  • Patent number: 4770794
    Abstract: Compositions and methods for retarding and extinguishing forest fires and ground fires by dropping air-activated foam compositions comprising 1% to 80% hydrocarbon surfactants, 0.1% to 6% by weight foam stabilizers, 0% to 30% by weight of solvents and 1% to 98.9% by weight of water.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: September 13, 1988
    Assignee: Wormald Canada Inc.
    Inventors: Edward Cundasawmy, George Cowan