Patents by Inventor Dieter Heller

Dieter Heller 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: 4207160
    Abstract: A measuring sensor head for determining the contents of gases in liquids, particularly for transcutaneous determination of oxygen in blood, as well as a method of manufacturing such sensor head are disclosed. In accordance with the invention, the gas-permeable membrane which covers the front face of the sensor head and which, during use, is applied to the human skin, is preshaped to assume a cap-shaped configuration. This eliminates previously occurring measuring errors due to uncontrollable stresses causing thickness variations generated in conventional membranes and, moreover, provides for an improved sealing effect between the housing of the measuring head and the membrane.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: June 10, 1980
    Assignee: Hellige GmbH
    Inventors: Horst Frankenberger, Dieter Heller, Georg Ullrich
  • Patent number: 4101888
    Abstract: The radar has two antennas which radiate RF signals of different frequencies and whose radiation patterns overlap. The frequencies of the radiated signals are generated by amplitude-modulating a single RF signal with two low frequency signals. The signals received by one of the two antennas are evaluated by determining, in an evaluating device, the difference between the amplitudes of the RF signals of different frequency which are reflected from an object. A DC voltage signal proportional to the above difference is generated and the DC voltage signal is fed to a threshold circuit whose threshold is determined by a predetermined azimuth range. Therefore, it can be determined if the reflecting object is in the same road lane as a car equipped with the radar.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: July 18, 1978
    Assignee: ITT Industries, Incorporated
    Inventors: Hans-Dieter Heller, Wolfram Hertler, Karl Petschauer
  • Patent number: 4011760
    Abstract: A measuring probe for a gas measuring apparatus comprises a probe head which is made of a floatable material and which is connected to a probe line for conveying the measured gas and which is provided with one or more intake openings for the gas and a connecting conduit for connecting the openings to the probe line.
    Type: Grant
    Filed: December 5, 1975
    Date of Patent: March 15, 1977
    Assignee: Dragerwerk Aktiengesellschaft
    Inventors: Dieter Heller, Helmut Hannemann