Patents by Inventor Michaela Kaefer

Michaela Kaefer 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).

  • Device and process for detecting defects in the disposition of reinforcing members of magnetizable material in casing plies in the sidewall region of a tire
    Patent number: 6005388
    Abstract: Device and process for detecting defects in an arrangement of reinforcing members in casing plies in a sidewall region of at least one of an unvulcanized tire blank or a vulcanized pneumatic vehicle tire to be tested. The reinforcing members may include a magnetizable material and the device may include a support device that rotatably supports the at least one of the unvulcanized tire blank or the vulcanized pneumatic vehicle tire in rotation around a rotational axis and at least one sensor that measures magnetic field intensities in a heterogeneous magnetic field resulting from inductions generated by the defects in the arrangement of the reinforcing members moving through the heterogeneous magnetic field. The at least one sensor may be positioned in a radial measuring position in a radial region of the sidewall.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: December 21, 1999
    Assignee: Continental Aktiengesellschaft
    Inventors: Michaela Kaefer-Hoffmann, Werner Bosch
  • Method for manufacturing semifinished products from a mixture of rubber and rubber-like plastic materials by shock cooling to increase tackiness
    Patent number: 5326508
    Abstract: A method for manufacturing calendered and/or extruded semifinished products with increased surface tackiness from a mixture of rubber and rubber-like plastic materials employs a shock-cooling step for cooling the hot semifinished products at a maximum shock cooling temperature of 0.degree. C.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: July 5, 1994
    Assignee: Continental Aktiengesellschaft
    Inventors: Michaela Kaefer, Holger Hoffmann