Patents by Inventor Alwin Kessler

Alwin Kessler 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: 6511051
    Abstract: An ordered column packing—in the form of packing layers containing flow channels (2)—has a foil-like material (1) with a fine structuring (10). The foil-like material is profiled with concave structure elements (3b; minus sign −) and convex structure elements (3a; plus sign +) in an alternating arrangement. An average distance “a” exists between centers of adjacent concave and convex structure elements respectively. This average distance “a” is substantially smaller than a distance between centerlines (20) of adjacent flow passages. The foil-like material has a second fine structuring in the form of regularly arranged apertures (5). An average distance “b” between centers of adjacent apertures is smaller than the average distance “a”, preferably smaller by at least 50%; and edges (51, 52) of the apertures have in each case a shape including convex and concave locations (6a, 6b).
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: January 28, 2003
    Assignee: Sulzer Chemtech AG
    Inventor: Alwin Kessler
  • Patent number: 6409378
    Abstract: A filler body with a cross channel structure for a packing column or a static mixer apparatus. The filler body is built up of layers that border on one another in which in each case channels are arranged parallel to one another. Lateral channels which are open to one another extend at boundary surfaces between adjacent layers. These lateral channels form a cross-wise arrangement. At least a portion of the layers in each case contain central channels in addition to the lateral channels. A material separation at the boundaries between the central and the lateral channels is produced in about one half of the cases by regularly arranged wall sections. The channel boundaries in the zones of the other half are open.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: June 25, 2002
    Assignee: Sulzer Chemtech AG
    Inventor: Alwin Kessler
  • Patent number: 6349567
    Abstract: The packing (1) with cross channel structure for a material exchange column (2) should have a high specific separation performance. The packing is specifiable by a specific surface area, a, and an inclination angle of the passages, &phgr;.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: February 26, 2002
    Assignee: Sulzer Chemtech AG
    Inventor: Alwin Kessler
  • Publication number: 20010026876
    Abstract: The ordered column packing comprises—in the form of packing layers containing flow channels (2)—foil-like material (1) with a fine structuring (10). The foil-like material is profiled with concave structure elements (3b; minus sign−) and convex structure elements (3a; plus sign+) in an alternating arrangement. An average distance a exists between centers of adjacent concave and convex structure elements respectively. This average distance a is substantially smaller than a distance between centerlines (20) of adjacent flow passages. The foil-like material has a second fine structuring which consists of regularly arranged apertures (5). An average distance b between centers of adjacent apertures is smaller than the average distance a, preferably smaller by at least 50%; and edges (51, 52) of the apertures have in each case a shaping comprising convex and concave locations (6a, 6b).
    Type: Application
    Filed: April 2, 2001
    Publication date: October 4, 2001
    Inventor: Alwin Kessler