Patents by Inventor Axel Wittek

Axel Wittek 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: 9527048
    Abstract: A rotor-stator system with which stable dispersions can be produced in one single cycle and can be flexibly adjusted to changing requirements to the composition of the dispersion. A stator for a rotor-stator system provided with a dispersion zone, wherein a rotor corresponding with the stator defines a dispersion chamber, and with an inlet for feeding a first component of a dispersion into the dispersion zone, the inside of the stator accommodating a premixing chamber outside the dispersion zone, said premixing chamber opening into the dispersion zone, and the stator having an intake for feeding an additional component of the dispersion from outside the stator into the premixing chamber, and during operation of the stator, components of the dispersion enter the premixing chamber from the dispersion zone and from the intake, are mixed in said premixing chamber and exit from said premixing chamber into the dispersion zone.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: December 27, 2016
    Inventor: Axel Wittek
  • Patent number: 9249910
    Abstract: To avoid even in rotor-stator dispersion machines with high suction power that the drawn liquid is set into a rotational movement whereby the dispersion performance is impaired, the invention provides transitional elements, such as an intermediate piece, for establishing the connection between a rotor-stator dispersion machine and a container. The rotor-stator dispersion machine comprises a rotor-stator system having at least one toothed ring. The container has a longitudinal axis and an outlet. The intermediate piece has a first opening for the connection with the outlet of the container and a second opening for the connection with the rotor-stator dispersion machine. The intermediate piece comprises a tube line that extends between the first and the second opening and has at least in some sections a longitudinal axis that is inclined relative to the longitudinal axis of the container by an angle a30 in the range of 0° to 90°.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: February 2, 2016
    Inventor: Axel Wittek
  • Patent number: 8820796
    Abstract: To avoid even in rotor-stator dispersion machines with high suction power that the drawn liquid is set into a rotational movement whereby the dispersion performance is impaired, the invention provides transitional elements, such as an intermediate piece, for establishing the connection between a rotor-stator dispersion machine and a container. The rotor-stator dispersion machine comprises a rotor-stator system having at least one toothed ring. The container has a longitudinal axis and an outlet. The intermediate piece has a first opening for the connection with the outlet of the container and a second opening for the connection with the rotor-stator dispersion machine. The intermediate piece comprises a tube line that extends between the first and the second opening and has at least in some sections a longitudinal axis that is inclined relative to the longitudinal axis of the container by an angle ?30 in the range of 0° to 90 °.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: September 2, 2014
    Inventor: Axel Wittek
  • Publication number: 20130135961
    Abstract: To avoid even in rotor-stator dispersion machines with high suction power that the drawn liquid is set into a rotational movement whereby the dispersion performance is impaired, the invention provides transitional elements, such as an intermediate piece, for establishing the connection between a rotor-stator dispersion machine and a container. The rotor-stator dispersion machine comprises a rotor-stator system having at least one toothed ring. The container has a longitudinal axis and an outlet. The intermediate piece has a first opening for the connection with the outlet of the container and a second opening for the connection with the rotor-stator dispersion machine. The intermediate piece comprises a tube line that extends between the first and the second opening and has at least in some sections a longitudinal axis that is inclined relative to the longitudinal axis of the container by an angle ?30 in the range of 0° to 90°.
    Type: Application
    Filed: January 28, 2013
    Publication date: May 30, 2013
    Inventor: Axel Wittek
  • Publication number: 20110187099
    Abstract: To avoid even in rotor-stator dispersion machines with high suction power that the drawn liquid is set into a rotational movement whereby the dispersion performance is impaired, the invention provides transitional elements, such as an intermediate piece, for establishing the connection between a rotor-stator dispersion machine and a container. The rotor-stator dispersion machine comprises a rotor-stator system having at least one toothed ring. The container has a longitudinal axis and an outlet. The intermediate piece has a first opening for the connection with the outlet of the container and a second opening for the connection with the rotor-stator dispersion machine. The intermediate piece comprises a tube line that extends between the first and the second opening and has at least in some sections a longitudinal axis that is inclined relative to the longitudinal axis of the container by an angle ?30 in the range of 0° to 90 °.
    Type: Application
    Filed: September 3, 2009
    Publication date: August 4, 2011
    Inventor: Axel Wittek
  • Publication number: 20110158931
    Abstract: A rotor-stator system with which stable dispersions can be produced in one single cycle and can be flexibly adjusted to changing requirements to the composition of the dispersion. A stator for a rotor-stator system provided with a dispersion zone, wherein a rotor corresponding with the stator defines a dispersion chamber, and with an inlet for feeding a first component of a dispersion into the dispersion zone, the inside of the stator accommodating a premixing chamber outside the dispersion zone, said premixing chamber opening into the dispersion zone, and the stator having an intake for feeding an additional component of the dispersion from outside the stator into the premixing chamber, and during operation of the stator, components of the dispersion enter the premixing chamber from the dispersion zone and from the intake, are mixed in said premixing chamber and exit from said premixing chamber into the dispersion zone.
    Type: Application
    Filed: April 30, 2009
    Publication date: June 30, 2011
    Inventor: Axel Wittek
  • Patent number: 6866411
    Abstract: According to a new partial stream method, different reagents (I, II) may be mixed quickly and intensively, especially for the production of emulsions, in a dispersing apparatus (10) which has a rotor/stator system (40, 50) at a container (B) near the bottom. A hot initial product, e.g. containing wax, may be dispersed with a dosed partial stream (R I?) of a cold carrier in a premixing chamber (60) via a feeding device (30, 38) below the rotor (50). The resulting mixture is then remixed with a cold main stream (R I) or a part hereof (R I?) fed from above. Contrary to the dispersing systems known, wherein mixing and shearing of the components is performed simultaneously in the region of maximum shearing gradient, the method of the invention separates both time and location of mixing and shearing by feeding said components into the premixing chamber (60). The basic principle is that an optimum emulsion be obtained by preparing a homogeneous phase mixture first.
    Type: Grant
    Filed: November 24, 2000
    Date of Patent: March 15, 2005
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: C Ekkehard Stelzer, Axel Wittek