Patents by Inventor Hans Persoon

Hans Persoon 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).

  • Publication number: 20250104962
    Abstract: A sample carrier for a charged particle microscope. The sample carrier comprises a planar or substantially planar body, an opening, and at least one protrusion. The opening is provided in the planar or substantially planar body. The protrusion extends into the opening within a plane defined by the planar or substantially planar body. The protrusion is configured to hold a charged particle microscopy sample.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 27, 2025
    Inventors: Christopher Thompson, Hans Persoon, Ruud Schampers
  • Publication number: 20250003845
    Abstract: Apparatus and methods are disclosed for vibration-free cryogenic cooling, suitable for TEM and other analytic equipment. A thermal battery includes one or more of: a cryocooler, a thermal switch, a thermal cold storage reservoir, and a cold finger. The thermal reservoir is mounted outside a sample chamber. The cold finger provides thermal coupling between the reservoir and a sample holder inside the sample chamber. In varying embodiments, sample holder and sample temperatures are regulated by a heater or by an inline variable thermal resistor. Cyclic phased operation includes cooling the reservoir, decoupling the cryocooler from the reservoir, and temperature-regulated passive vibration-free thermal energy extraction from sample to reservoir. The described system delivers a stand time of 12 hours at 20 K. Temperature regulation, a hybrid thermal switch, damping of thermal fluctuations, and material selection are described.
    Type: Application
    Filed: September 16, 2024
    Publication date: January 2, 2025
    Applicant: FEI Company
    Inventors: Ronald Lamers, Hans Persoon, Alphons Theophile Augusta Maria de Waele, Theo Ruijl, Hugo van Leeuwen
  • Patent number: 12123816
    Abstract: Apparatus and methods are disclosed for vibration-free cryogenic cooling, suitable for TEM and other analytic equipment. A thermal battery includes one or more of: a cryocooler, a thermal switch, a thermal cold storage reservoir, and a cold finger. The thermal reservoir is mounted outside a sample chamber. The cold finger provides thermal coupling between the reservoir and a sample holder inside the sample chamber. In varying embodiments, sample holder and sample temperatures are regulated by a heater or by an inline variable thermal resistor. Cyclic phased operation includes cooling the reservoir, decoupling the cryocooler from the reservoir, and temperature-regulated passive vibration-free thermal energy extraction from sample to reservoir. The described system delivers a stand time of 12 hours at 20 K. Temperature regulation, a hybrid thermal switch, damping of thermal fluctuations, and material selection are described.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: October 22, 2024
    Assignee: FEI Company
    Inventors: Ronald Lamers, Hans Persoon, Alphons Theophile Augusta Maria de Waele, Theo Ruijl, Hugo van Leeuwen
  • Patent number: 11802823
    Abstract: The invention relates to a Cryo-Charged Particle (CCP) sample handling and storage system. The system is used for storing and handling cryo-samples for use in charged particle microscopy, such as cryo-electron microscope samples for use in cryo-transmission electron microscopy. The system comprises a storage apparatus for storing a plurality of CCP samples, and a Charged Particle Apparatus (CPA), such as a cryo-TEM, at a location remote from said storage apparatus. The system further comprises a transfer device that is releasably connectable to said storage apparatus, and that is releasably connectable to said CPA as well. As defined herein, said transfer device is arranged for acquiring a CCP sample from said plurality of CCP samples when connected to said storage apparatus, and arranged for transferring said CCP sample from said transfer device to said CPA when connected to said CPA.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: October 31, 2023
    Assignee: FEI Company
    Inventors: Vojt{hacek over (e)}ch Dole{hacek over (z)}al, Hans Persoon, John Mitchels
  • Publication number: 20220404247
    Abstract: Apparatus and methods are disclosed for vibration-free cryogenic cooling, suitable for TEM and other analytic equipment. A thermal battery includes one or more of: a cryocooler, a thermal switch, a thermal cold storage reservoir, and a cold finger. The thermal reservoir is mounted outside a sample chamber. The cold finger provides thermal coupling between the reservoir and a sample holder inside the sample chamber. In varying embodiments, sample holder and sample temperatures are regulated by a heater or by an inline variable thermal resistor. Cyclic phased operation includes cooling the reservoir, decoupling the cryocooler from the reservoir, and temperature-regulated passive vibration-free thermal energy extraction from sample to reservoir. The described system delivers a stand time of 12 hours at 20 K. Temperature regulation, a hybrid thermal switch, damping of thermal fluctuations, and material selection are described.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 22, 2022
    Applicant: FEI Company
    Inventors: Ronald Lamers, Hans Persoon, Alphons Theophile Augusta Maria de Waele, Theo Ruijl, Hugo van Leeuwen
  • Publication number: 20220155193
    Abstract: The invention relates to a Cryo-Charged Particle (CCP) sample handling and storage system. The system is used for storing and handling cryo-samples for use in charged particle microscopy, such as cryo-electron microscope samples for use in cryo-transmission electron microscopy. The system comprises a storage apparatus for storing a plurality of CCP samples, and a Charged Particle Apparatus (CPA), such as a cryo-TEM, at a location remote from said storage apparatus. The system further comprises a transfer device that is releasably connectable to said storage apparatus, and that is releasably connectable to said CPA as well. As defined herein, said transfer device is arranged for acquiring a CCP sample from said plurality of CCP samples when connected to said storage apparatus, and arranged for transferring said CCP sample from said transfer device to said CPA when connected to said CPA.
    Type: Application
    Filed: November 10, 2021
    Publication date: May 19, 2022
    Applicant: FEI Company
    Inventors: Vojtech Dolezal, Hans Persoon, John Mitchels