Patents by Inventor Susanne Wiedemann

Susanne Wiedemann 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).

  • Measuring device for analyzing the composition of a fuel gas, having a filter chamber arranged upstream of a detector
    Patent number: 11796456
    Abstract: A measuring device for analyzing a composition of a fuel gas including at least a first gas and a second gas different from the first gas, the first gas and the second gas absorbing an infrared light in at least one common first wavelength range in the electromagnetic spectrum, the measuring device including: an intermittent first infrared emitter; a first sample chamber for receiving the fuel gas; a first detector including at least the first gas and operating according to a photoacoustic effect; and a first filter chamber containing the second gas. The first sample chamber, the first detector, and the first filter chamber are arranged relative to each other such that an infrared light emitted from the first infrared emitter passes through the first sample chamber and the first filter chamber and impinges on the first detector.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 24, 2023
    Assignee: ABB Schweiz AG
    Inventors: Susanne Wiedemann, Wolfgang Kleemann, Carsten Rathke, Matias-Hugo Clavin, Juergen Kappler
  • MEASURING DEVICE FOR ANALYZING THE COMPOSITION OF A FUEL GAS, HAVING A FILTER CHAMBER ARRANGED UPSTREAM OF A DETECTOR
    Publication number: 20210041354
    Abstract: A measuring device for analyzing a composition of a fuel gas including at least a first gas and a second gas different from the first gas, the first gas and the second gas absorbing an infrared light in at least one common first wavelength range in the electromagnetic spectrum, the measuring device including: an intermittent first infrared emitter; a first sample chamber for receiving the fuel gas; a first detector including at least the first gas and operating according to a photoacoustic effect; and a first filter chamber containing the second gas. The first sample chamber, the first detector, and the first filter chamber are arranged relative to each other such that an infrared light emitted from the first infrared emitter passes through the first sample chamber and the first filter chamber and impinges on the first detector.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Inventors: Susanne Wiedemann, Wolfgang Kleemann, Carsten Rathke, Matias-Hugo Clavin, Juergen Kappler