Patents by Inventor Larry J. Zimmer

Larry J. Zimmer 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).

  • Single control for gas actuated fire extinguishers
    Patent number: 4224994
    Abstract: The discharge apparatus is used in conjunction with a fire suppression system and includes a plurality of gas cartridges communicating with one or more fire extinguishing tanks. The discharge apparatus includes a first cylinder-piston device which upon activation punctures a diaphragm of a gas cartridge. Gas released from the first gas cartridge pressurizes a related fire extinguishing tanks to cause extinguishing chemicals to be discharged. A small portion of the gas released from the first gas cartridge is responsible for the activation of a second cylinder-piston device associated with a second gas cartridge to cause the release of gas. The gas released from the second gas cartridge pressurizes a related fire extinguishing tank to cause extinguishing chemical to be discharged.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: September 30, 1980
    Assignee: Deere & Company
    Inventors: Melvin N. Tone, Larry J. Zimmer, James W. Jewett