Patents by Inventor Manfred Nettek

Manfred Nettek 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 device for detaching or cutting out an embedded manhole frame
    Patent number: 6709064
    Abstract: A method for detaching a manhole frame (7) that is embedded in a road surface, wherein the manhole frame (7) is cut horizontally starting from the inside, without significant exposure of the outside area surrounding the manhole frame (7), by using a horizontally oriented rotating cutting blade (15) that performs eccentric circumferential runs along the inside of the manhole frame.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: March 23, 2004
    Assignee: M. Nettek International, Inc., Technology Development & Marketing
    Inventor: Manfred Nettek
  • Method and device for detaching or cutting out an embedded manhole frame
    Publication number: 20030222495
    Abstract: A method for detaching a manhole frame (7) that is embedded in a road surface, wherein the manhole frame (7) is cut horizontally starting from the inside, without significant exposure of the outside area surrounding the manhole frame (7), by using a horizontally oriented rotating cutting blade (15) that performs eccentric circumferential runs along the inside of the manhole frame.
    Type: Application
    Filed: October 10, 2002
    Publication date: December 4, 2003
    Inventor: Manfred Nettek