Patents by Inventor Michael Heimes

Michael Heimes 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 for longitudinally subdividing sewer pipes
    Patent number: 8882393
    Abstract: The invention relates to a tool for longitudinally subdividing buried sewer pipes having an asymmetric, generally oval cross section, made substantially of a support shoe opposing a cutting blade acting in the direction of the pipe axis. The device also has two side cutting blades and is moved through the old pipe by means of a rod and a cylindrical calibration mandrel.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: November 11, 2014
    Assignee: Tracto-Technik GmbH & Co. KG
    Inventors: Elmar Koch, Martin Köper, Michael Heimes, Sebastian Schwarzer
  • TOOL FOR LONGITUDINALLY SUBDIVIDING SEWER PIPES
    Publication number: 20110150577
    Abstract: The invention relates to a tool for longitudinally subdividing buried sewer pipes having an asymmetric, generally oval cross section, made substantially of a support shoe opposing a cutting blade acting in the direction of the pipe axis. The device also has two side cutting blades and is moved through the old pipe by means of a rod and a cylindrical calibration mandrel.
    Type: Application
    Filed: April 2, 2009
    Publication date: June 23, 2011
    Applicant: Tracto-Technik GmbH & Co. KG
    Inventors: Elmar Koch, Martin Köper, Michael Heimes, Sebastian Schwarzer