Patents by Inventor Sven L. I. Svensson

Sven L. I. Svensson 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).

  • Numerical control apparatus for stepped feeding at punch and nibbling machines
    Patent number: 4272812
    Abstract: In a nibbling machine having a fixed tool, a punching tool reciprocated by crank mechanism including a crankshaft and means for feeding a workpiece step-by-step between the fixed tool and the punching tool, feeding movement of the workpiece is controlled by a computer so that the workpiece is stopped while engaged by the punching tool but a maximum period of time is provided during which the workpiece can be moved. A pulse generator connected with the crankshaft generates 1000 to 20,000 pulses per revolution.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: June 9, 1981
    Inventor: Sven L. I. Svensson