Patents by Inventor Achim Cordes

Achim Cordes 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 apparatus for ultrasonic welding or bonding
    Patent number: 8317078
    Abstract: A method and an apparatus for ultrasonic welding of a first workpiece to a second workpiece is disclosed. The two workpieces are clamped between a sonotrode and an anvil so that the two workpieces are in mechanical contact with each other, the first workpiece is in mechanical contact with the sonotrode and the second workpiece rests on the anvil. Fluid is introduced between the second workpiece and the anvil so that the second workpiece at least partly rests on the fluid. The fluid is frozen so that the fluid forms a solid body. Ultrasonic vibrations are applied to the first workpiece by the sonotrode for a period of time.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 27, 2012
    Assignee: Infineon Technologies AG
    Inventors: Guido Strotmann, Achim Cordes