Patents by Inventor Norbert Otto

Norbert Otto 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).

  • Method and apparatus for producing fused quartz from a polymerizable polyalkylsiloxane compound with membrane filter as cleaning device
    Patent number: 10513454
    Abstract: A method for producing synthetic fused quartz is provided. The method includes evaporating a feedstock material which contains at least one polymerizable polyalkylsiloxane compound, and supplying the feedstock material vapor to a reaction zone, wherein the feedstock material vapor is converted by oxidation and/or by hydrolysis into SiO2 particles. The feedstock material vapor is passed through a membrane filter as a cleaning device to reduce the formation of gel, which is typically associated with the production of synthetic fused quartz.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 24, 2019
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Norbert Otto, Martin Trommer
  • METHOD AND APPARATUS FOR PRODUCING FUSED QUARTZ FROM A POLYMERIZABLE POLYALKYLSILOXANE COMPOUND WITH MEMBRANE FILTER AS CLEANING DEVICE
    Publication number: 20180065879
    Abstract: A method for producing synthetic fused quartz is provided. The method includes evaporating a feedstock material which contains at least one polymerizable polyalkylsiloxane compound, and supplying the feedstock material vapor to a reaction zone, wherein the feedstock material vapor is converted by oxidation and/or by hydrolysis into SiO2 particles. The feedstock material vapor is passed through a membrane filter as a cleaning device to reduce the formation of gel, which is typically associated with the production of synthetic fused quartz.
    Type: Application
    Filed: February 17, 2016
    Publication date: March 8, 2018
    Inventors: Norbert OTTO, Martin TROMMER
  • Method for producing synthetic quartz glass
    Patent number: 9481597
    Abstract: The invention relates to a method for producing synthetic quartz glass by vaporizing a polyalkylsiloxane as a liquid SiO2 feedstock (105), converting the vaporized SiO2 feedstock (107) into SiO2 particles, separating the SiO2 particles, forming a soot body (200) and vitrifying the soot body (200). According to the invention, the vaporizing of the heated SiO2 feedstock (105) comprises an injection phase in an expansion chamber (125), in which the SiO2 feedstock (105) is atomized into fine droplets, wherein the droplets have an average diameter of less than 5 pm, and wherein the atomizing of the droplets takes place in a preheated carrier gas stream which has a temperature of more than 180° C.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: November 1, 2016
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Klaus-Uwe Badeke, Norbert Otto, Martin Trommer, Hilmar Laudahn, Andreas Brueckel
  • METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS
    Publication number: 20150007611
    Abstract: The invention relates to a method for producing synthetic quartz glass by vaporizing a polyalkylsiloxane as a liquid SiO2 feedstock (105), converting the vaporized SiO2 feedstock (107) into SiO2 particles, separating the SiO2 particles, forming a soot body (200) and vitrifying the soot body (200). According to the invention, the vaporizing of the heated SiO2 feedstock (105) comprises an injection phase in an expansion chamber (125), in which the SiO2 feedstock (105) is atomized into fine droplets, wherein the droplets have an average diameter of less than 5 pm, and wherein the atomizing of the droplets takes place in a preheated carrier gas stream which has a temperature of more than 180° C.
    Type: Application
    Filed: December 13, 2012
    Publication date: January 8, 2015
    Inventors: Klaus-Uwe Badeke, Norbert Otto, Martin Trommer, Hilmar Laudahn, Andreas Brueckel