Patents by Inventor Jens Ohmann

Jens Ohmann 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).

  • Pull boring cutter head
    Patent number: 5277525
    Abstract: This invention concerns a pull boring cutter head assembly for machining long bores such as hydraulic cylinders and includes the use of support bearing blocks projecting from the cutter head to support the latter during cutting operations. The blocks are automatically radially adjustable under suitable biasing.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: January 11, 1994
    Inventor: Jens Ohmann