Patents by Inventor Jakob Albert Van Den Berg

Jakob Albert Van Den Berg 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).

  • Additive layer manufacture using charged particle beams
    Patent number: 10879039
    Abstract: A method of charge mitigation in additive layer manufacturing is provided, which uses a charged particle beam (103) to fuse metal powder (122) within a metal powder bed (123) to form a product layer-by-layer, the method comprising using a charged particle beam optical system to form a charged particle beam, to steer the charged particle beam to be incident on a powder bed of metal powder and to scan over the powder bed to fuse powder into a desired layer shape. While steering the charged particle beam, the method comprises using a neutralising particle source (160) to generate neutralising particles of an opposite charge to the charged particles in the vicinity of the charged particle beam such that the neutralising particles are attracted to the charged particles of powder in the powder bed. An additive layer manufacturing apparatus (100) is also provided.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 29, 2020
    Assignee: RELIANCE PRECISION LIMITED
    Inventors: Jakob Albert Van Den Berg, Martyn James Hussey, William Thomas Richardson, Ian Laidler
  • IMPROVEMENTS RELATING TO ADDITIVE LAYER MANUFACTURE USING CHARGED PARTICLE BEAMS
    Publication number: 20190362936
    Abstract: A method of charge mitigation in additive layer manufacturing is provided, which uses a charged particle beam (103) to fuse metal powder (122) within a metal powder bed (123) to form a product layer-by-layer, the method comprising using a charged particle beam optical system to form a charged particle beam, to steer the charged particle beam to be incident on a powder bed of metal powder and to scan over the powder bed to fuse powder into a desired layer shape. While steering the charged particle beam, the method comprises using a neutralising particle source (160) to generate neutralising particles of an opposite charge to the charged particles in the vicinity of the charged particle beam such that the neutralising particles are attracted to the charged particles of powder in the powder bed. An additive layer manufacturing apparatus (100) is also provided.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 28, 2019
    Inventors: Jakob Albert Van Den Berg, Martyn James Hussey, William Thomas Richardson, Ian Laidler