Patents by Inventor Frank DÜRSEN

Frank DÜRSEN 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: 11685079
    Abstract: The present invention relates to an apparatus for dispensing and curing of liquid media, comprising a supply system comprising at least one reservoir for the liquid medium, a nozzle for ejecting the liquid medium into a mould (10) and/or onto a workpiece and means (22) connecting the nozzle and the reservoir; and a microwave system (16,18) which comprises a microwave source (16) for producing microwave radiation for irradiating the liquid medium in an irradiation zone (20) in the supply system, wherein the irradiation zone (20) is arranged between the reservoir and the nozzle. The apparatus further comprises a displacement assembly for translating and/or rotating the nozzle with respect to the mould (10) and/or the workpiece in a controlled manner. According to further aspects, the invention also relates to a system and a method for dispensing and curing of liquid media.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: June 27, 2023
    Assignee: RAMPF HOLDING GMBH & CO. KG
    Inventors: Frank Duersen, George Sollner, Juergen Penker, Utz-Volker Jackisch
  • Publication number: 20210163746
    Abstract: The present invention relates to generally relates to polyurethanes containing at least one lignin compound. In particular, the invention relates to a reactive polyurethane system comprising at least one polyol, at least one polyisocyanate and at least one lignin compound. In further aspects, the invention relates to a process for producing a polyurethane from a reactive system as disclosed, a polyurethane obtainable by such process, polyurethane adhesives, articles comprising cured polyurethane adhesives and a method for adhesive bonding.
    Type: Application
    Filed: April 5, 2019
    Publication date: June 3, 2021
    Inventors: Frank DÜRSEN, Gunnar GEIGER, Andrea SANDER, Michael KUGLER
  • Publication number: 20200215813
    Abstract: The present invention relates to an apparatus for dispensing and curing of liquid media, comprising a supply system comprising at least one reservoir for the liquid medium, a nozzle for ejecting the liquid medium into a mould (10) and/or onto a workpiece and means (22) connecting the nozzle and the reservoir; and a microwave system (16,18) which comprises a microwave source (16) for producing microwave radiation for irradiating the liquid medium in an irradiation zone (20) in the supply system, wherein the irradiation zone (20) is arranged between the reservoir and the nozzle. The apparatus further comprises a displacement assembly for translating and/or rotating the nozzle with respect to the mould (10) and/or the workpiece in a controlled manner. According to further aspects, the invention also relates to a system and a method for dispensing and curing of liquid media.
    Type: Application
    Filed: July 2, 2018
    Publication date: July 9, 2020
    Inventors: Frank DUERSEN, George SOLLNER, Juergen PENKER, Utz-Volker JACKISCH