Patents by Inventor Johannes TRAPP

Johannes TRAPP 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).

  • Compact absorptivity measurement system for additive manufacturing
    Patent number: 10646960
    Abstract: The present disclosure relates to a powdered bed fusion additive manufacturing (PBFAM) apparatus. The apparatus uses a container for holding a quantity of powdered material. The container has a bottom wall for supporting the powdered material, wherein the bottom wall is made from the same material as the powdered material. A temperature sensing subsystem is coupled to a portion of the container for detecting a temperature of the container. A laser generates an optical beam directed at the powdered material held by the container for melting the powdered material. A controller receives temperature information from the temperature sensing subsystem and determines an absorptivity of the powdered material based on the temperature information.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: May 12, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Alexander M. Rubenchik, Manyalibo Joseph Matthews, Johannes Trapp
  • COMPACT ABSORPTIVITY MEASUREMENT SYSTEM FOR ADDITIVE MANUFACTURING
    Publication number: 20190099837
    Abstract: The present disclosure relates to a powdered bed fusion additive manufacturing (PBFAM) apparatus. The apparatus uses a container for holding a quantity of powdered material. The container has a bottom wall for supporting the powdered material, wherein the bottom wall is made from the same material as the powdered material. A temperature sensing subsystem is coupled to a portion of the container for detecting a temperature of the container. A laser generates an optical beam directed at the powdered material held by the container for melting the powdered material. A controller receives temperature information from the temperature sensing subsystem and determines an absorptivity of the powdered material based on the temperature information.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 4, 2019
    Inventors: Alexander M. RUBENCHIK, Manyalibo Joseph MATTHEWS, Johannes TRAPP