Patents by Inventor Helmuth Gabl

Helmuth Gabl 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).

  • Process for aerating dispersions
    Patent number: 6475337
    Abstract: A device and process for aerating dispersions, particularly for flotation of pulp suspensions, in a de-inking process. The process includes at least two stages, where each stage has a separate liquid circulating system which sucks in the gas or air and mixes it with the liquid. The device has at least two flotation cells, with each of the cells having a separate injector and a separate circulation system including a pump.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: November 5, 2002
    Assignee: Andritz AG
    Inventors: Helmuth Gabl, Erwin Hertl, Bernhard Scherzinger
  • Screen
    Publication number: 20010045379
    Abstract: A screen, for screening material used in the production of paper, board and the like, having a screen basket and a rotor supporting several blades which can be moved along the wall of the screen basket when the rotor rotates. The blades having a convex curvature on the side facing the screen basket. The radial clearance between the surface of the blade facing the screen and the screen being lowest between the front sector, viewed in the direction of rotation, and increasing towards the rear edge of the blade.
    Type: Application
    Filed: April 3, 2001
    Publication date: November 29, 2001
    Inventors: Helmuth Gabl, Axel Pichler, Alexander Gscheider
  • Process and device for aerating dispersions
    Publication number: 20010025808
    Abstract: A device and process for aerating dispersions, particularly for flotation of pulp suspensions, in a de-inking process where the pulp suspension containing dirt particles is sprayed into a tank together with air. The air is injected at a minimum of two successive points and mixed with the suspension.
    Type: Application
    Filed: February 2, 2001
    Publication date: October 4, 2001
    Inventors: Bernhard Scherzinger, Helmuth Gabl
  • Process and device for aerating dispersions
    Publication number: 20010025693
    Abstract: A device and process for aerating dispersions, particularly for flotation of pulp suspensions, in a de-inking process. The process includes at least two stages, where each stage has a separate liquid circulating system which sucks in the gas or air and mixes it with the liquid. The device has at least two flotation cells, with each of the cells having a separate injector and a separate circulation system including a pump.
    Type: Application
    Filed: February 2, 2001
    Publication date: October 4, 2001
    Inventors: Helmuth Gabl, Erwin Hertl, Bernhard Scherzinger
  • Refiner
    Publication number: 20010022329
    Abstract: A refiner for shredding pulps having refining surfaces provided on a rotor and a stator and which form a cylindrical or a conical refining gap. The refining gap is set by wedges which are mounted on the stator and rotor and can be moved against each other.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 20, 2001
    Inventors: Peter Antensteiner, Helmuth Gabl, Gerald Schadler, Walter Writzl
  • Screen
    Publication number: 20010022284
    Abstract: A screen for cleaning a pulp suspension includes a stationary installation in the infeed area between the infeed branch and the free end of the rotor.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 20, 2001
    Inventors: Helmuth Gabl, Axel Pichler, Alexander Gscheider
  • Screen and process for manufacturing a screen of this kind
    Publication number: 20010020600
    Abstract: A flat or cylindrical screen includes rods and rod-bearing supporting elements. The rods have protrusions in the side walls which are received into inversely shaped recesses in a supporting element. The screen is manufactured by bending the supporting elements open elastically and inserting the rods, whereupon the supporting elements spring back, encircle the rods positively and form a screen mat.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 13, 2001
    Inventors: Helmuth Gabl, Axel Pichler
  • Refiner
    Publication number: 20010020660
    Abstract: A refiner including a rotor and a stator defining a cylindrical or conical refining gap therebetween. A pulp feed channel extends in a radial direction from an inlet pipe to the refining gap.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 13, 2001
    Inventors: Peter Antensteiner, Helmuth Gabl, Andreas Gorton-Hulgerth, Gerald Schadler
  • Screen
    Publication number: 20010019025
    Abstract: A screen for cleaning a pulp suspension including a cylindrical screen basket and a double-conical accept chamber which widens in the flow direction of the pulp suspension.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 6, 2001
    Inventors: Helmuth Gabl, Axel Pichler, Alexander Gscheider
  • Screen
    Publication number: 20010017274
    Abstract: A screen for cleaning a pulp suspension including an additional screen basket in the infeed area for pre-screening.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 30, 2001
    Inventors: Helmuth Gabl, Axel Pichler, Alexander Gscheider