Patents by Inventor Matthias Fedde

Matthias Fedde 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).

  • Patent number: 11505448
    Abstract: The invention relates to a device for discharging a first fluid and for returning a second fluid, comprising a main channel (13) for discharging the first fluid and a return channel (14) for returning the second fluid. According to the invention, a test channel (15) is provided which connects the main channel (13) to the return channel (14), the main channel (13) having a narrowing (16) and the test channel (15) issuing into the main channel (13) in the region of the narrowing (16). The device further has a sensor (17) which is designed to determine a pressure in the test channel (15). The invention further relates to an outflow tube, a delivery nozzle and a delivery pump having a device according to the invention. With the aid of the invention, active return of the second fluid can be shut off in a simple and safe manner.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: November 22, 2022
    Assignee: ELAFLEX HIBY GmbH & Co. KG
    Inventors: Lasse Schulz-Hildebrandt, Matthias Fedde
  • Publication number: 20220204336
    Abstract: The invention relates to a device for discharging a first fluid and for returning a second fluid, comprising a main channel (13) for discharging the first fluid and a return channel (14) for returning the second fluid. According to the invention, a test channel (15) is provided which connects the main channel (13) to the return channel (14), the main channel (13) having a narrowing (16) and the test channel (15) issuing into the main channel (13) in the region of the narrowing (16). The device further has a sensor (17) which is designed to determine a pressure in the test channel (15). The invention further relates to an outflow tube, a delivery nozzle and a delivery pump having a device according to the invention. With the aid of the invention, active return of the second fluid can be shut off in a simple and safe manner.
    Type: Application
    Filed: October 28, 2019
    Publication date: June 30, 2022
    Inventors: Lasse Schulz-Hildebrandt, Matthias Fedde
  • Patent number: 9266710
    Abstract: The invention provides a dispensing valve or fuel nozzle having an earth (ground) cable and/or a safety cap for covering the discharge opening, the safety cap connected by a cord to the dispensing valve, wherein the dispensing valve has an automatic retraction system for the earth cable and/or the cord of said safety cap.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 23, 2016
    Assignee: ELAFLEX HIBY TANKTECHNIK GMBH & CO. KG
    Inventors: Matthias Fedde, Achim Aehle, Stefan Kunter
  • Patent number: 9051164
    Abstract: The invention relates to a dispensing valve for dispensing liquids into a reservoir container, with a main valve and with an operating lever designed for opening the main valve against a force biasing the main valve into the closed position, wherein the valve actuation mechanism has a continuous characteristic with a smooth profile, with which, when subjecting the operating lever to an actuation force at the start of a valve opening stroke, a different opening force is exerted on the main valve than when subjecting the operating lever to the same actuation force during the later course of the valve opening stroke.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 9, 2015
    Assignee: Elaflex Hiby Tanktechnik GmbH & Co. KG
    Inventors: Achim Aehle, Stefan Kunter, Matthias Fedde
  • Publication number: 20140048173
    Abstract: The invention relates to a filling nozzle for dispensing liquid into a tank of a motor vehicle, having an actuating lever for a valve device and having a safety device moveable from a blocking position into an enabling position, wherein, in the blocking position, the valve device is closed regardless of the position of the actuating lever, and in the enabling position, the valve device can be opened by means of the actuating lever. The operative connection between the safety device and valve device is realized without external energy. The invention makes it possible to realize a misfilling inhibitor without external electrical energy, for example, and thus to fit a filling nozzle for urea solution, for example, in the explosion-protected region of a conventional fuel filling pump.
    Type: Application
    Filed: July 12, 2013
    Publication date: February 20, 2014
    Applicant: Elaflex Hiby Tanktechnik GmbH & Co. KG
    Inventors: Matthias Fedde, Heinz-Ulrich Meyer
  • Publication number: 20130087247
    Abstract: The invention relates to a dispensing valve for dispensing liquids into a reservoir container, with a main valve and with an operating lever designed for opening the main valve against a force biasing the main valve into the closed position, wherein the valve actuation mechanism has a continuous characteristic with a smooth profile, with which, when subjecting the operating lever to an actuation force at the start of a valve opening stroke, a different opening force is exerted on the main valve than when subjecting the operating lever to the same actuation force during the later course of the valve opening stroke.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 11, 2013
    Inventors: Achim Aehle, Stefan Kunter, Matthias Fedde
  • Publication number: 20130081738
    Abstract: The invention provides a dispensing valve or fuel nozzle having an earth (ground) cable and/or a safety cap for covering the discharge opening, the safety cap connected by a cord to the dispensing valve, wherein the dispensing valve has an automatic retraction system for the earth cable and/or the cord of said safety cap.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 4, 2013
    Inventors: Matthias Fedde, Achim Aehle, Stefan Kunter