Patents by Inventor Edwin D. Klaft

Edwin D. Klaft 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).

  • Dry abrasive blasting head having rotating nozzles
    Patent number: 6062957
    Abstract: The useful life of a dry abrasive blasting head is greatly extended by two design features. First, the tube on which the rotating nozzles are mounted is protected from abrasion by an easily-replaced wear tube which is a sleeve-like liner. Secondly, the relatively expensive nozzle holder is protected by providing it with a cup-shaped cavity facing the incoming abrasive particles. The cup-shaped cavity soon becomes at least partially filled by the particles, so that later-arriving particles strike the particles contained in the cavity and do not directly reach the nozzle holder, thereby prolonging its life. Taken together, these structural features of the present invention result in a high-performance blasting head that can operate for more than 1,000 hours without interruption.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: May 16, 2000
    Assignee: Pacific Roller Die Company, Inc.
    Inventors: Edwin D. Klaft, Daniel Freitas, Paul K. Davis