Patents by Inventor Rudolf Johannes Perer Gerardus Schampers

Rudolf Johannes Perer Gerardus Schampers 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).

  • Cooperating capillary and cap for use in a high-pressure freezer
    Patent number: 8921785
    Abstract: The invention relates to an assembly of a cooperating capillary and cap for containing an aqueous solution in an inner volume of the capillary. The assembly is used in a high pressure freezer in which the aqueous solution is frozen at a high pressure to form an amorphous frozen sample at a cryogenic temperature. The cap forms a closure at one end of the capillary, and the part of the cap that is in contact with the inner volume of the capillary has an indent; as a result of which the cap, after freezing the aqueous solution, can be removed from the capillary and a free standing pillar of frozen aqueous material extends from the capillary.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: December 30, 2014
    Assignee: FEI Company
    Inventors: Rudolf Johannes Perer Gerardus Schampers, Johannes Antonius Hendricus W. G. Persoon, Andreas Theodorus Engelen