Patents by Inventor Guenter Grau

Guenter Grau 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).

  • Patent number: 10571309
    Abstract: Various embodiments relate to devices for measuring the state of devices and multi-stage rotary encoders as well as to associated sensors. In order to simplify the design of devices which can be read out electronically and multi-turn rotary encoders, according to some embodiments a device having at least one rotatable wheel, at least one light source and at least one polarization sensor is proposed, the wheel being at least partially transparent and polarization-maintaining, parts of the wheel being configured as pole filters, it being possible for light which exits the light source to be polarized by the pole filter and to be received by the polarization sensor.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 25, 2020
    Inventor: Guenter Grau
  • Publication number: 20180188078
    Abstract: Various embodiments relate to devices for measuring the state of devices and multi-stage rotary encoders as well as to associated sensors. In order to simplify the design of devices which can be read out electronically and multi-turn rotary encoders, according to some embodiments a device having at least one rotatable wheel, at least one light source and at least one polarization sensor is proposed, the wheel being at least partially transparent and polarization-maintaining, parts of the wheel being configured as pole filters, it being possible for light which exits the light source to be polarized by the pole filter and to be received by the polarization sensor.
    Type: Application
    Filed: February 22, 2016
    Publication date: July 5, 2018
    Inventor: Guenter Grau
  • Publication number: 20150285390
    Abstract: A sealing ring for a pressure control valve for controlling boost pressure in a combustion engine with turbocharger is provided, including a sealing body which is rotationally symmetrical with regard to a cylinder axis and is made from a material which comprises as main constituent one or more perfluorinated thermoplastics, wherein the sealing body has a substantially U-shaped cross-sectional profile with an apex region and two sealing lips which, starting from the apex region, extend parallel to one another or with an opening angle at least approximately in the direction of the cylinder axis; and a spring element which is rotationally symmetrical with regard to the cylinder axis and is made of steel with a substantially U-shaped cross-sectional profile, wherein the spring element is arranged between the sealing lips of the sealing body in such a way that it bears directly against the mutually facing surfaces thereof.
    Type: Application
    Filed: June 17, 2015
    Publication date: October 8, 2015
    Inventors: Guenter Grau, Martin Maier, Mehmet Cankar