Patents by Inventor Vanessa Rakebrandt

Vanessa Rakebrandt 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).

  • Method and device for carrying out an integrity test on a filter element
    Patent number: 10350551
    Abstract: A method for carrying out an integrity test on a filter element includes filling a fluid into at least one vessel (1), in which a filter element (F) to be tested is arranged. The method proceeds by setting the pressure of the fluid in the vessel (1) to a predetermined test pressure, and maintaining the test pressure in the vessel (1) with controlled replenishment of fluid into the vessel (1) and/or a controlled change in internal volume of the vessel (1). The method continues by determining an integrity characteristic variable for the filter element (F) in a manner dependent on the controlled replenishment of fluid into the vessel (1) and/or dependent on the controlled change in internal volume of the vessel (1) before attaining a substantially continuous volume flow of fluid for maintaining the specific test pressure in the vessel (1).
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: July 16, 2019
    Assignee: Satorius Stedim Biotech Gmbh
    Inventors: Dieter Armgart, Dirk Leiser, Vanessa Rakebrandt, Juergen Van Den Boogaard
  • METHOD AND DEVICE FOR CARRYING OUT AN INTEGRITY TEST ON A FILTER ELEMENT
    Publication number: 20170189858
    Abstract: A method for carrying out an integrity test on a filter element includes filling a fluid into at least one vessel (1), in which a filter element (F) to be tested is arranged. The method proceeds by setting the pressure of the fluid in the vessel (1) to a predetermined test pressure, and maintaining the test pressure in the vessel (1) with controlled replenishment of fluid into the vessel (1) and/or a controlled change in internal volume of the vessel (1). The method continues by determining an integrity characteristic variable for the filter element (F) in a manner dependent on the controlled replenishment of fluid into the vessel (1) and/or dependent on the controlled change in internal volume of the vessel (1) before attaining a substantially continuous volume flow of fluid for maintaining the specific test pressure in the vessel (1).
    Type: Application
    Filed: August 26, 2015
    Publication date: July 6, 2017
    Inventors: Dieter Armgart, Dirk Leiser, Vanessa Rakebrandt, Juergen Van Den Boogaard