Patents by Inventor Patrick Fritschy

Patrick Fritschy 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 measuring the geometry of a cutting edge to be chamfered
    Patent number: 7899572
    Abstract: The machining of drills (1) includes an operation for chamfering the cutting edges (8) performed in two steps. In the first step the rotating grindstone (15) is directed to various locations of the cutting edge (8) and the point of contact is detected by an electronic appliance (17) whereof the electronic module (19) controls the stoppage of the grindstone, its return to the starting position and the recording of the position of the grindstone at the time of contact. In the second step the grindstone (15) is controlled to follow the left line obtained by connecting the points registered during the first step.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: March 1, 2011
    Assignee: Rollomatic SA
    Inventor: Patrick Fritschy
  • Method and device for measuring the geometry of a cutting edge to be chamfered
    Publication number: 20090157217
    Abstract: The machining of drills (1) includes an operation for chamfering the cutting edges (8) performed in two steps. In the first step the rotating grindstone (15) is directed to various locations of the cutting edge (8) and the point of contact is detected by an electronic appliance (17) whereof the electronic module (19) controls the stoppage of the grindstone, its return to the starting position and the recording of the position of the grindstone at the time of contact. In the second step the grindstone (15) is controlled to follow the left line obtained by connecting the points registered during the first step.
    Type: Application
    Filed: July 20, 2006
    Publication date: June 18, 2009
    Inventor: Patrick Fritschy