Patents by Inventor Karl Fitzi

Karl Fitzi 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: 4639315
    Abstract: Apparatus for mechanical purification of waste water has a stationary hollow shaft which is installed in a vessel for waste water and carries a variable number of hollow drum-shaped frames with pairs of filters adjacent to the openings in their sidewalls. Waste water is drawn into the interior of the frames by a pump which is connected to one end of the shaft whereby the impurities deposit at the outer sides of the filters. Such impurities are removed from time to time by suction heads which are adjacent to the outer sides of the filters and are connected to a single sludge pump by discrete conduits, one for each frame. The inner sides of the respective filters are then sprayed by clean water which promotes segregation of impurities and their entry into the suction heads. Indexible valving elements are provided to connect conduits for admission of clean water into selected frames with a single source of clean water and to connect selected conduits for removal of impurities with the sludge pump.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: January 27, 1987
    Assignee: Mecapec S.A.
    Inventors: Ernst Fuchs, Karl Fitzi
  • Patent number: 4610281
    Abstract: Apparatus for straightening and severing coiled wire or rod stock has several sets of guides each of which receives stock from a different reel and each of which can be moved into and from register with rollers serving to advance the selected stock into one of several straightening devices. A synchronizing unit ensures that the placing of a selected straightening device into a portion of the path along which the stock advances toward and into the range of a severing device downstream of the straightening station invariably entails a movement of the corresponding set of guides into a preceding portion of such path. Each source can contain stock having a different diameter and the severing device moves with the advancing stock in the course of each severing operation.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: September 9, 1986
    Assignee: Mecapec S.A.
    Inventors: Ernst Fuchs, Eduard Berger, Karl Fitzi