Patents by Inventor Robert-Coen Oldeman

Robert-Coen Oldeman 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).

  • Cutting device for cutting a strip of unvulcanized rubber
    Patent number: 4922774
    Abstract: A cutting device for cutting strips of unvulcanized rubber to proper lengths for building a pneumatic tire, in particular a radial tire, said device comprising at least one conveyor and a cutting apparatus working crosswise with respect to said conveyor for cutting a strip of unvulcanized rubber, wherein said apparatus for cutting said strip comprises means to vibrate a knife longitudinally to and fro with high frequency e.g. ultrasonic frequency and means to move the knife vibrating longitudinally to and fro along a track crosswise with respect to said strip.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: May 8, 1990
    Assignee: VMI Epe Holland B.V.
    Inventor: Robert-Coen Oldeman