Patents by Inventor George D. Kahl

George D. Kahl 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).

  • Gaseous blast reducer
    Patent number: 4392412
    Abstract: A gaseous blast reducer employs a membrane which is effective to contain a ass of gas having properties different from air, in the vicinity of the source of the blast. The blast is forced to propagate through the mass of gas before propagating in the air. An acoustic mismatch caused by the difference in properties between the gas and air reduces or attenuates the blast.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: July 12, 1983
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Edward M. Schmidt, George D. Kahl