Patents by Inventor Stefan BÜRGI

Stefan BÜRGI 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: 10042368
    Abstract: A flow rate measuring unit, comprising a housing, which is composed of at least two housing parts that can be connected to one another and in which a flow passage extends, which branches off into a measuring channel branch and at least one bypass channel branch, wherein a substrate comprising a sensor system is disposed in the measuring channel branch. According to the invention, the flow passage includes a channel widening chamber in which an insert plate stack composed of at least two insert plates is disposed, which each include at least one plate-longitudinal recess extending in the longitudinal direction as the measuring channel branch and/or as the bypass channel branch. The insert plates are provided as insert parts for the channel widening chamber.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: August 7, 2018
    Assignee: Axetris AG
    Inventors: Stefan Bürgi, Adrian Dänzer, Christoph Bächler
  • Patent number: 9995607
    Abstract: A flow rate measuring unit, comprising a housing, which is composed of at least two housing parts that can be connected to one another and in which a flow passage extends, which branches off into a measuring channel branch and at least one bypass channel branch, wherein a substrate comprising a sensor system is disposed in the measuring channel branch. According to the invention, the flow passage includes a channel widening chamber in which an insert plate stack composed of at least two insert plates is disposed, which each include at least one plate-longitudinal recess extending in the longitudinal direction as the measuring channel branch and/or as the bypass channel branch. The insert plates are provided as insert parts for the channel widening chamber.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: June 12, 2018
    Assignee: Axetris AG
    Inventors: Stefan Bürgi, Adrian Dänzer, Christoph Bächler
  • Publication number: 20170153651
    Abstract: A flow rate measuring unit, comprising a housing, which is composed of at least two housing parts that can be connected to one another and in which a flow passage extends, which branches off into a measuring channel branch and at least one bypass channel branch, wherein a substrate comprising a sensor system is disposed in the measuring channel branch. According to the invention, the flow passage includes a channel widening chamber in which an insert plate stack composed of at least two insert plates is disposed, which each include at least one plate-longitudinal recess extending in the longitudinal direction as the measuring channel branch and/or as the bypass channel branch. The insert plates are provided as insert parts for the channel widening chamber.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 1, 2017
    Inventors: Stefan BÜRGI, Adrian DÄNZER, Christoph BÄCHLER
  • Publication number: 20170153133
    Abstract: A flow rate measuring unit, comprising a housing, which is composed of at least two housing parts that can be connected to one another and in which a flow passage extends, which branches off into a measuring channel branch and at least one bypass channel branch, wherein a substrate comprising a sensor system is disposed in the measuring channel branch. According to the invention, the flow passage includes a channel widening chamber in which an insert plate stack composed of at least two insert plates is disposed, which each include at least one plate-longitudinal recess extending in the longitudinal direction as the measuring channel branch and/or as the bypass channel branch. The insert plates are provided as insert parts for the channel widening chamber.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 1, 2017
    Inventors: Stefan BÜRGI, Adrian DÄNZER, Christoph BÄCHLER
  • Patent number: 9518678
    Abstract: An electrical feedback device (6) of a valve (1) is provided for feeding back the position of a hand wheel (4) of the valve (1) and thus the position of a shut-off member of the valve (1). The electrical feedback device (6) can be mounted in a spindle housing (13) of a housing upper part (2) of the valve (1). The electrical feedback device is configured so that the rotational movement of the hand wheel (4) is converted into a linear movement of a trip cam (45). The electrical feedback device (6) has a gearwheel (43) which is driven by a screw thread (42) which is mounted on a ring (41).
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: December 13, 2016
    Assignee: Georg Fischer Rohrleitungssysteme AG
    Inventors: Stefan Bürgi, Jürgen Stumpp
  • Publication number: 20150034186
    Abstract: An actuating device (4) for actuating valves, having a spindle (5), wherein the actuating device is designed as a hand wheel (4) with a locking element (32) and with an electric feedback device (6), characterized in that the locking element (32) is formed in one piece and is arranged integrally in the hand wheel (4).
    Type: Application
    Filed: October 17, 2014
    Publication date: February 5, 2015
    Applicant: Georg Fischer Rohrleitungssysteme AG
    Inventors: Stefan Bürgi, Jürgen Stumpp
  • Patent number: 8869609
    Abstract: A flow sensor for measuring the flow of a gaseous or liquid medium with a sensor housing in which, between an inlet channel and an outlet channel, a flow channel extends that comprises a main channel and a measuring channel that is arranged parallel to the main channel. At least one main channel choke point is arranged in the main channel, and the measuring channel comprises a sensor element for measuring the flow. A measuring channel choke point in the measuring channel on the inlet and/or the outlet side, is arranged with the main channel choke point having at least one passage and the measuring channel choke point having a passage, both passages being of identical shape and extending parallel to each other in the flow direction.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: October 28, 2014
    Assignee: Axetris AG
    Inventors: Thomas Wielath, Stefan Bürgi
  • Publication number: 20120125094
    Abstract: A flow sensor for measuring the flow of a gaseous or liquid medium with a sensor housing in which, between an inlet channel and an outlet channel, a flow channel extends that comprises a main channel and a measuring channel that is arranged parallel to the main channel. At least one main channel choke point is arranged in the main channel, and the measuring channel comprises a sensor element for measuring the flow. A measuring channel choke point in the measuring channel on the inlet and/or the outlet side, is arranged with the main channel choke point having at least one passage and the measuring channel choke point having a passage, both passages being of identical shape and extending parallel to each other in the flow direction.
    Type: Application
    Filed: October 19, 2011
    Publication date: May 24, 2012
    Applicant: LEISTER PROCESS TECHNOLOGIES
    Inventors: Thomas WIELATH, Stefan BÜRGI