Patents by Inventor Charles Recher

Charles Recher 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).

  • Patent number: 6445094
    Abstract: The invention relates to a hoisting drive comprising several linear motors, as well as to a linear slide track with a carriage. All primary parts and all secondary parts of the linear motors are mounted on the carriage. The hoisting drive comprises a closed housing which is cooled by a coolant and into which the linear slide track is integrated together with the linear motors. Those primary parts and secondary parts which are not mounted on the carriage are mounted on the housing. A cylindrical hoisting rod is introduced into the housing in a sealed manner and mechanically joined to the carriage. This hoisting drive is especially suitable for use in the iron and steel industry as replacement for large cylinders.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: September 3, 2002
    Assignee: Paul Wurth S.A.
    Inventors: Emile Lonardi, Hans Bajohr, Charles Recher