Patents by Inventor Norbert SEIFERMANN

Norbert SEIFERMANN 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).

  • Tool holder
    Patent number: 9993880
    Abstract: A tool holder includes a basic body, in which a tool receiving region is located, a circular cylindrical clamping chuck having several joints and an external thread which has an external pitch angle, as well as a union nut having an internal thread which has an internal pitch angle. The union nut has a stopping face on the basic body or on the clamping chuck. The external pitch angle is different from the internal pitch angle.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: June 12, 2018
    Assignee: Simtek AG
    Inventor: Norbert Seifermann
  • TOOL HOLDER
    Publication number: 20160052062
    Abstract: A tool holder includes a basic body, in which a tool receiving region is located, a circular cylindrical clamping chuck having several joints and an external thread which has an external pitch angle, as well as a union nut having an internal thread which has an internal pitch angle. The union nut has a stopping face on the basic body or on the clamping chuck. The external pitch angle is different from the internal pitch angle.
    Type: Application
    Filed: August 19, 2015
    Publication date: February 25, 2016
    Applicant: Simtek AG
    Inventor: Norbert SEIFERMANN