Patents by Inventor Ralf Carle

Ralf Carle 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).

  • Seat heater and process for heating of a seat
    Patent number: 6150642
    Abstract: The seat heater includes at least one electric sheet-type heating element (10) made of flexible high-resistivity material to which the main electrodes (13A, 13B) are connected. In order to minimize the time during which the seat is perceived as being cold without any notable increase in overall power requirements, the seat heater is equipped with an additional feature (18A, 18B) for heating basically at least a partial area (SH) of the sheet-type heating element (10) with increased heating density, and a switch device for changing from heating the partial area (SH) with the additional feature (18A, 18B) to overall homogeneous heating of the sheet-type heating element (10) with regular heating density through the main electrodes (13A, 13) or the main electrodes (13A, 13B) and the additional feature (18A, 18B).
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: November 21, 2000
    Assignee: W.E.T Automotive System AG
    Inventors: Michael Weiss, Markus Hugenschmidt, Ralf Carle