Patents by Inventor Ralf Doerr

Ralf Doerr 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).

  • Installation method for a component in an opening of mating component
    Patent number: 8850680
    Abstract: A threaded element in the shape of a wire thread insert with a specific geometric design is disclosed. This threaded element contains, in particular, a narrowed helical winding of at least two helical winding sections that enclose one or a plurality of sequential secants. Based on this geometric design of the threaded element, a matched installation process is described.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: October 7, 2014
    Assignee: Böllhoff Verbindungstechnik GmbH
    Inventors: Andreas Marxkors, Francisco Tovar, Ralf Dörr
  • Solenoid valve
    Patent number: 8777180
    Abstract: A solenoid valve comprising a magnetic drive having at least two parallel coils which are arranged with their end faces lying between two spaced apart magnetic yoke plates, a stationary magnetic plug and an axially movable magnetic core each being arranged in each coil which together with the magnetic yoke plates form a ferromagnetic circuit. At least one further magnetic element which is firmly connected to a respective yoke plate on two opposite ends is arranged between the magnetic plates.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 15, 2014
    Assignee: Buerkert Werke GmbH
    Inventors: Ralf Doerr, Heiko Engler, Martin Ottliczky, Sebastian Kahl
  • Solenoid valve
    Patent number: 8757207
    Abstract: A solenoid valve comprising a particularly cuboidal housing having a hollow interior into which at least three flow channels open, at least two of which are formed with valve seats, is characterized in that at least two two-armed actuating elements are pivotally mounted in the hollow interior and each actuating element cooperates with at least one valve seat to cover or open the valve seat depending on its pivoted position.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: June 24, 2014
    Assignee: Buerkert Werke GmbH
    Inventors: Ralf Doerr, Heiko Engler, Martin Ottliczky
  • Solenoid Valve
    Publication number: 20120223264
    Abstract: A solenoid valve comprising a magnetic drive having at least two parallel coils which are arranged with their end faces lying between two spaced apart magnetic yoke plates, a stationary magnetic plug and an axially movable magnetic core each being arranged in each coil which together with the magnetic yoke plates form a ferromagnetic circuit. At least one further magnetic element which is firmly connected to a respective yoke plate on two opposite ends is arranged between the magnetic plates.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 6, 2012
    Applicant: BUERKERT WERKE GMBH
    Inventors: Ralf Doerr, Heiko Engler, Martin Ottliczky, Sebastian Kahl
  • Solenoid Valve
    Publication number: 20120223263
    Abstract: A solenoid valve comprising a particularly cuboidal housing having a hollow interior into which at least three flow channels open, at least two of which are formed with valve seats, is characterized in that at least two two-armed actuating elements are pivotally mounted in the hollow interior and each actuating element cooperates with at least one valve seat to cover or open the valve seat depending on its pivoted position.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 6, 2012
    Applicant: BUERKERT WERKE GMBH
    Inventors: Ralf Doerr, Heiko Engler, Martin Ottliczky