Patents by Inventor Carolin Marquardt

Carolin Marquardt 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).

  • Filter for fluids and an additive container for a filter
    Patent number: 10143950
    Abstract: A filter (10) for liquid has a filter housing (14) with at least one hollow filter element (12). The filter element at least partially surrounded by a liquid guidance region (54). At least one additive chamber (50) of an additive dispensing device (38) is disposed on the side of the liquid guidance region (54) opposite the corresponding exterior side of the hollow filter element (12) by means of at least one partition (42). The at least one partition has at least one dispensing port (52) by means of which the at least one additive chamber (50) can be fluidically connected to the liquid guidance region (54). The at least one dispensing port (52) is closed with at least one closure element (58) at least in the original condition of the additive dispensing device (38), this closure element being dissolvable by the liquid to be treated to release the at least one first dispensing port (52) during operation of the filter (10).
    Type: Grant
    Filed: December 14, 2014
    Date of Patent: December 4, 2018
    Assignee: MANN+HUMMEL GmbH
    Inventors: Alfons Alois Schwinghammer, Pamela Gohl, Carolin Marquardt, Stephan Niemeyer
  • Filter for Fluids and an Additive Container for a Filter
    Publication number: 20150165355
    Abstract: A filter (10) for liquid has a filter housing (14) with at least one hollow filter element (12). The filter element at least partially surrounded by a liquid guidance region (54). At least one additive chamber (50) of an additive dispensing device (38) is disposed on the side of the liquid guidance region (54) opposite the corresponding exterior side of the hollow filter element (12) by means of at least one partition (42). The at least one partition has at least one dispensing port (52) by means of which the at least one additive chamber (50) can be fluidically connected to the liquid guidance region (54). The at least one dispensing port (52) is closed with at least one closure element (58) at least in the original condition of the additive dispensing device (38), this closure element being dissolvable by the liquid to be treated to release the at least one first dispensing port (52) during operation of the filter (10).
    Type: Application
    Filed: December 14, 2014
    Publication date: June 18, 2015
    Inventors: Alfons Alois Schwinghammer, Pamela Gohl, Carolin Marquardt, Stephan Niemeyer