Patents by Inventor Gunnar Dahlin

Gunnar Dahlin 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).

  • Thread milling apparatus
    Patent number: 4034646
    Abstract: An apparatus for cutting threads or grooves in a rotating workpiece with a rotating cutting tool, the tool and workpiece rotating in timed relationship, comprising an integer ratio between the revolutions of tool and workpiece and a superimposed rotation of tool or workpiece relative the other, which superimposed rotation is coupled to the feeding motion for tool or workpiece, the tool being arranged for rotation about an axis located outside the contour of the thread to be cut in the workpiece.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: July 12, 1977
    Assignee: Automatindustrier i Gavle AB
    Inventor: Gunnar Dahlin