Patents by Inventor Thomas D. Kohler

Thomas D. Kohler 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).

  • Method and apparatus for permanent magnet attachment in an electromechanical machine
    Patent number: 8664819
    Abstract: An apparatus and method for the installation and removal of permanent magnets in a permanent magnet electromechanical machine, for example a wind turbine power unit generator. A magnet holder is mounted on a magnet carrying structure such as a rotor. Permanent magnets may be inserted into and removed from the magnet holder after the electromechanical machine is assembled. In this manner, permanent magnets may be installed on the magnet carrying structure by an interference fit, without using bolts or adhesives, to facilitate both assembly and removal for maintenance and repair.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: March 4, 2014
    Assignee: Northern Power Systems Utility Scale, Inc.
    Inventors: Mark S. Piercey, Peter P. Mongeau, Jonathan A. Lynch, Thomas D. Kohler, Paul A. Smith
  • Method and Apparatus For Permanent Magnet Attachment In An Electromechanical Machine
    Publication number: 20110043065
    Abstract: An apparatus and method for the installation and removal of permanent magnets in a permanent magnet electromechanical machine, for example a wind turbine power unit generator. A magnet holder is mounted on a magnet carrying structure such as a rotor. Permanent magnets may be inserted into and removed from the magnet holder after the electromechanical machine is assembled. In this manner, permanent magnets may be installed on the magnet carrying structure by an interference fit, without using bolts or adhesives, to facilitate both assembly and removal for maintenance and repair.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 24, 2011
    Applicant: NORTHERN POWER SYSTEMS, INC.
    Inventors: Mark S. Piercey, Peter P. Mongeau, Jonathan A. Lynch, Thomas D. Kohler, Paul A. Smith