Patents by Inventor Cristy A. Kumasaka

Cristy A. Kumasaka 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).

  • Hermetically sealed gas propellant cartridge for fire extinguisher
    Publication number: 20050150665
    Abstract: A fire extinguisher includes a tank and a gas generator breech connected to the tank. The gas generator breech is provided with a hermetically sealed gas generator cartridge. The hermetically sealed gas generator cartridge avoids the need to have a release poppet or burst shims on the gas generator breech. The enclosed space that contains combustion gas pressure is provided by the gas generator cartridge itself and not the gas generator breech. The gas generator cartridge is made from a container that can be the precursor to a beverage can used for carbonated beverages. The beverage can may come in a thickness and material of construction that makes it a suitable, cost-effective container for the gas generator cartridge. However, other containers besides precursors of beverage cans can be used.
    Type: Application
    Filed: October 15, 2004
    Publication date: July 14, 2005
    Applicant: Aerojet-General Corporation
    Inventors: Paul Wierenga, Cristy Kumasaka, David Hobson, Alexander Mathers
  • Hermetically sealed gas propellant cartridge for fire extinguishers
    Publication number: 20040216903
    Abstract: A fire extinguisher includes a tank and a gas generator breech connected to the tank. The gas generator breech is provided with a hermetically sealed gas generator cartridge. The hermetically sealed gas generator cartridge avoids the need to have a release poppet or burst shims on the gas generator breech. The enclosed space that contains combustion gas pressure is provided by the gas generator cartridge itself and not the gas generator breech. The gas generator cartridge is made from a container that can be the precursor to a beverage can used for carbonated beverages. The beverage can may come in a thickness and material of construction that makes it a suitable, cost-effective container for the gas generator cartridge. However, other containers besides precursors of beverage cans can be used.
    Type: Application
    Filed: January 13, 2004
    Publication date: November 4, 2004
    Inventors: Paul H. Wierenga, Cristy A. Kumasaka, David C. Hobson, Alexander J. Mathers