Patents by Inventor John L. Mann

John L. Mann 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).

  • Transducer built into an electrode
    Patent number: 6297467
    Abstract: The present invention provides an electrode assembly for a spot welder which has an acoustic sensor built therein. In a preferred embodiment of the present invention, a spot welder has a first and second electrode assembly according to the present invention. During welding, the acoustic sensor from the first electrode assembly selectively generates a burst of acoustic energy which passes through a weld subject and is received by the second electrode assembly. The acoustic sensor in the second transducer then emits an output signal, representative of the geometry of the weld nugget, to a computer.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: October 2, 2001
    Assignee: DaimlerChrysler Corporation
    Inventors: Roman Gr. Maev, Andrei A. Ptchelintsev, John L. Mann