Patents by Inventor Stefan Frohofer

Stefan Frohofer 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: 6595682
    Abstract: The mixing element (2) is provided for a flange transition (10) in a pipeline (1) and can be mounted between two flanges (11, 12) of the pipeline. It comprises a mixing-active structure (25) which is formed by one or two vanes (25a, 25b) within a ring (20). Two mutually inclined planes (21, 22) can be defined, with the one vane being arranged on the one plane or the two vanes being arranged on the two planes. The two planes intersect at a crossing axis (23). Closed sub-surfaces (52, 51′) as well as open pieces of surface (51, 520, 521, 522) of vanes form a surface pattern (5) which is formed asymmetrically with respect to the crossing axis.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: July 22, 2003
    Assignee: Sulzer Chemtech AG
    Inventors: Peter Mathys, Stefan Frohofer
  • Publication number: 20010038575
    Abstract: The mixing element (2) is provided for a flange transition (10) in a pipeline (1) and can be mounted between two flanges (11, 12) of the pipeline. It comprises a mixing-active structure (25) which is formed by one or two vanes (25a, 25b) within a ring (20). Two mutually inclined planes (21, 22) can be defined, with the one vane being arranged on the one plane or the two vanes being arranged on the two planes. The two planes intersect at a crossing axis (23). Closed sub-surfaces (52, 51′) as well as open pieces of surface (51, 520, 521, 522) of the vanes form a surface pattern (5) which is formed asymmetrically with respect to the crossing axis.
    Type: Application
    Filed: April 30, 2001
    Publication date: November 8, 2001
    Inventors: Peter Mathys, Stefan Frohofer