Patents by Inventor Gunter Ehrenberger

Gunter Ehrenberger 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).

  • Illuminated electric switches
    Patent number: 4221945
    Abstract: In an illuminated rotary electric switch, for use in a motor vehicle to indicate the location of the switch, its condition of operation, and, if desired, its function, a manually rotatable switch member is provided with a central opening arranged so that light can be projected longitudinally therethrough from a single light source so as to indicate the location of the switch (and its function, if desired) and with a further opening which can be brought into and out of registration with an aperture in a fixed portion of the switch through which light from said source can be projected laterally, so as thereby to uncover or mask said aperture and thus indicate the condition of operation of the switch.
    Type: Grant
    Filed: February 16, 1979
    Date of Patent: September 9, 1980
    Assignee: General Motors Corporation
    Inventors: Dietmar Mobus, Gunter Ehrenberger, Wolfgang Jobst
  • Illuminated electric switches
    Patent number: 4176265
    Abstract: In an illuminated rotary electric switch, for use in a motor vehicle to indicate the location of the switch, its condition of operation, and, if desired, its function, a manually rotatable switch member is provided with a central opening arranged so that light can be projected longitudinally therethrough from a single light source so as to indicate the location of the switch (and its function, if desired) and with a further opening which can be brought into and out of registration with an aperture in a fixed portion of the switch through which light from said source can be projected laterally, so as thereby to uncover or mask said aperture and thus indicate the condition of operation of the switch.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: November 27, 1979
    Assignee: General Motors Corporation
    Inventors: Dietmar Mobus, Gunter Ehrenberger, Wolfgang Jobst