Patents by Inventor Robert L. Rudolph

Robert L. Rudolph 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).

  • Gun having disposable cartridge
    Patent number: 4174068
    Abstract: A disposable cartridge containing flowable material is positioned removably in the barrel of a spray gun, the cartridge having a spout telescoped into the nozzle of the gun. When pressurized air is admitted into the gun, part of the air flows into the barrel to force the material out of the cartridge and the spout and into the nozzle. The remainder of the pressurized air passes into the nozzle to atomize the material and to cause the material to spray out of the nozzle as a fine mist.
    Type: Grant
    Filed: November 7, 1978
    Date of Patent: November 13, 1979
    Inventor: Robert L. Rudolph