Patents by Inventor Felix Lippert

Felix Lippert 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: 20230338877
    Abstract: A fuel filter element has a screen fabric as a filter medium and a support tube supporting the screen fabric. A valve body guide for guiding a spherical valve body is provided. The valve body guide has a fluid channel and one or more support ribs for supporting the spherical valve body. The support ribs extend along a longitudinal direction of the fluid channel and project radially into the fluid channel. A filter assembly with such a fuel filter element is provided. The filter assembly has a ball valve with spherical valve body and a filter housing with a valve seat for the spherical valve body of the ball valve.
    Type: Application
    Filed: June 29, 2023
    Publication date: October 26, 2023
    Inventors: Christine Oprisch, Martin Weindorf, Martin Veit, Felix Lippert
  • Patent number: 11731063
    Abstract: A fuel filter element has a screen fabric as a filter medium and a support tube supporting the screen fabric. A valve body guide for guiding a spherical valve body is provided. The valve body guide has a fluid channel and one or more support ribs for supporting the spherical valve body. The support ribs extend along a longitudinal direction of the fluid channel and project radially into the fluid channel. A filter assembly with such a fuel filter element is provided. The filter assembly has a ball valve with spherical valve body and a filter housing with a valve seat for the spherical valve body of the ball valve.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: August 22, 2023
    Assignee: MANN+HUMMEL GmbH
    Inventors: Christine Oprisch, Martin Weindorf, Martin Veit, Felix Lippert
  • Patent number: 10927801
    Abstract: A valve device for a fuel filter module has a first fluid channel through which fuel flows only in recirculation mode of the fuel filter module and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel. The first and second fluid channels are coaxial to each other. A fuel filter module switchable into recirculation mode and out of recirculation mode is provided with a control valve that has a valve bore and a valve device arranged in the valve bore, wherein the valve device has a first fluid channel through which fuel flows only in recirculation mode and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel, and the first and second fluid channels are coaxial to each other.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: February 23, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Martin Weindorf, Rafael Salom, Felix Lippert, Ronald Ritzen, Achim Missner
  • Publication number: 20210046406
    Abstract: A fuel filter element has a screen fabric as a filter medium and a support tube supporting the screen fabric. A valve body guide for guiding a spherical valve body is provided. The valve body guide has a fluid channel and one or more support ribs for supporting the spherical valve body. The support ribs extend along a longitudinal direction of the fluid channel and project radially into the fluid channel. A filter assembly with such a fuel filter element is provided. The filter assembly has a ball valve with spherical valve body and a filter housing with a valve seat for the spherical valve body of the ball valve.
    Type: Application
    Filed: November 3, 2020
    Publication date: February 18, 2021
    Inventors: Christine Oprisch, Martin Weindorf, Martin Veit, Felix Lippert
  • Publication number: 20190160403
    Abstract: A valve device for a fuel filter module has a first fluid channel through which fuel flows only in recirculation mode of the fuel filter module and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel. The first and second fluid channels are coaxial to each other. A fuel filter module switchable into recirculation mode and out of recirculation mode is provided with a control valve that has a valve bore and a valve device arranged in the valve bore, wherein the valve device has a first fluid channel through which fuel flows only in recirculation mode and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel, and the first and second fluid channels are coaxial to each other.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Inventors: Martin Weindorf, Rafael Salom, Felix Lippert, Ronald Ritzen, Achim Missner