Patents by Inventor Charles R. Stumpfel

Charles R. Stumpfel 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).

  • Fast dispensing fire extinguisher
    Patent number: H141
    Abstract: There is disclosed a fire extinguisher which is not pressurized and is made f thin walled light weight molded plastic or a metal container or a mixture thereof. The container is full of fire extinguishing agent. An explosive device, preferably a detonating cord is in the container which when activated causes gas and shock pressure to burst the container instantaneously expelling the fire extinguishing agent onto the fire being treated.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: October 7, 1986
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Anthony E. Finnerty, Lowell K. Bryant, Charles R. Stumpfel