Patents by Inventor Hilmar Walde

Hilmar Walde 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).

  • Apparatus for the filtration of liquids
    Patent number: 8216451
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, wherein the quantitative flow through the filter cartridge can be reduced and set in a simple way. The apparatus is characterized in that at least one throttling device 200, 200? is arranged between the outlet opening 113 of the filter cartridge 100 and the outflow opening 17 of the receiving chamber 14.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: July 10, 2012
    Assignee: Brita GmbH
    Inventors: Hilmar Walde, Stefan Gröss, Gunder Guckes
  • Filter cartridge and apparatus for the filtration of liquids
    Patent number: 8114284
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, the correct seating of which is ensured and can be established by the user. The apparatus is characterized in that the inlet funnel 10 has at least one first fixing means 30 below the receiving opening 13, and in that the filter cartridge 100 has at least one second fixing means 130 below and at a distance from the sealing rim 160, which second fixing means, when the filter cartridge 100 is being fitted into the receiving opening 13, interacts with the first fixing means 30.
    Type: Grant
    Filed: August 1, 2009
    Date of Patent: February 14, 2012
    Assignee: BRITA GmbH
    Inventors: Hilmar Walde, Stefan Gröss, Gunder Guckes
  • Filter cartridge and apparatus for the filtration of liquids
    Patent number: 8025802
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, the correct seating of which is ensured and can be established by the user. The apparatus is characterized in that the inlet funnel 10 has at least one first fixing means 30 below the receiving opening 13, and in that the filter cartridge 100 has at least one second fixing means 130 below and at a distance from the sealing rim 160, which second fixing means, when the filter cartridge 100 is being fitted into the receiving opening 13, interacts with the first fixing means 30.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: September 27, 2011
    Assignee: Brita GmbH
    Inventors: Hilmar Walde, Stefan Gröss, Gunder Guckes
  • Filter Cartridge and apparatus for the Filtration of Liquids
    Publication number: 20090294346
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, the correct seating of which is ensured and can be established by the user. The apparatus is characterized in that the inlet funnel 10 has at least one first fixing means 30 below the receiving opening 13, and in that the filter cartridge 100 has at least one second fixing means 130 below and at a distance from the sealing rim 160, which second fixing means, when the filter cartridge 100 is being fitted into the receiving opening 13, interacts with the first fixing means 30.
    Type: Application
    Filed: August 1, 2009
    Publication date: December 3, 2009
    Applicant: Brita GmbH
    Inventors: Hilmar WALDE, Stefan GRÖSS, Gunder GUCKES
  • Filter Cartridge and Apparatus for the Filtration of Liquids
    Publication number: 20070246421
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, the correct seating of which is ensured and can be established by the user. The apparatus is characterized in that the inlet funnel 10 has at least one first fixing means 30 below the receiving opening 13, and in that the filter cartridge 100 has at least one second fixing means 130 below and at a distance from the sealing rim 160, which second fixing means, when the filter cartridge 100 is being fitted into the receiving opening 13, interacts with the first fixing means 30.
    Type: Application
    Filed: May 12, 2005
    Publication date: October 25, 2007
    Inventors: Hilmar Walde, Stefan Gross, Gunder Guckes
  • Apparatus for the Filtration of Liquids
    Publication number: 20070227955
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, by means of which the quantitative flow through the filter cartridge can be reduced and set in a simple way. The apparatus is characterized in that at least one throttling device 200, 200? is arranged between the outlet opening 113 of the filter cartridge 100 and the outflow opening 17 of the receiving chamber 14.
    Type: Application
    Filed: April 27, 2005
    Publication date: October 4, 2007
    Inventors: Hilmar Walde, Stefan Gross, Gunder Guckes