Patents by Inventor Karl-Heinz Hack

Karl-Heinz Hack 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).

  • Apparatus for decontaminating radioactively contaminated surfaces
    Patent number: 5347557
    Abstract: An apparatus decontaminates a radioactively contaminated surface region of a pipe, connector or vessel being open at one end, with a dry mechanical blasting medium. The apparatus includes a processing bell to be mounted on the open end of the pipe, connector or vessel. A flexible dustproof duct is connected to the processing bell. A retaining device protrudes into the duct and is movable from outside in the interior of the pipe, connector or vessel. A blasting head is disposed on the retaining device. A blasting system is connected to the blasting head and has a continuous circulation of the blasting medium.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: September 13, 1994
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hermann Operschall, Karl-Heinz Hack, Klaus Hengelhaupt, Konrad Meier-Hynek