Patents by Inventor Weichang C. Zhao

Weichang C. Zhao 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).

  • Fiber blend identification and ratio measurement
    Patent number: 11402335
    Abstract: An instrument for identifying at least one of fiber blend composition and fiber blend ratio in an input material moved by a third set of fiber movements. A second spectral radiation source directs radiation toward the input material. A second spectral sensor receives portions of the second radiation that pass through the input material. A third spectral sensor receives portions of the second radiation that reflect off of the input material. A controller processes the signals from at least one of the second spectral sensor and the third spectral sensor to determine at least one of the fiber blend composition and the fiber blend ratio in the input material. The controller also sends control signals to the second electromagnetic radiation source and the third set of fiber movements.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: August 2, 2022
    Assignee: Uster Technologies AG
    Inventors: Peyman Dehkordi, Kent A. Rinehart, Weichang C. Zhao
  • Fiber Blend Identification and Ratio Measurement
    Publication number: 20210199593
    Abstract: An instrument for identifying at least one of fiber blend composition and fiber blend ratio in an input material moved by a third set of fiber movements. A second spectral radiation source directs radiation toward the input material. A second spectral sensor receives portions of the second radiation that pass through the input material. A third spectral sensor receives portions of the second radiation that reflect off of the input material. A controller processes the signals from at least one of the second spectral sensor and the third spectral sensor to determine at least one of the fiber blend composition and the fiber blend ratio in the input material. The controller also sends control signals to the second electromagnetic radiation source and the third set of fiber movements.
    Type: Application
    Filed: September 11, 2018
    Publication date: July 1, 2021
    Applicant: Uster Technologies AG
    Inventors: Peyman Dehkordi, Kent A. Rinehart, Weichang C. Zhao