Patents by Inventor Hans Richner

Hans Richner 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: 4333329
    Abstract: Apparatus for periodically sensing and cooling the end face of one or more rams of an automatic cross transport press. In a cross transport press, on the press frame (1) there is mounted a sensing rocker (9) which executes a periodical rocking movement about a horizontal axis (A) in the work rhythm of a carriage (2) provided with rams (5). The movement of the sensing rocker (9) is transmitted from the carriage (2) through a connecting rod (20), a transmission lever (17) and the two rocker arms (8) to sensing elements (27) equipped with cooling sprinklers. The slightly angled transmission lever (17) rests upon a stop (15) and is retained upon the stop (15) by a spring (25). If a sensing element (27) encounters an obstacle, then the press is stopped; simultaneously the transmission lever (17) lifts from the stop counter to the return force of the spring (25), whereby any damage is prevented.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: June 8, 1982
    Assignee: Hatebur Umformmaschinen AG
    Inventor: Hans Richner
  • Patent number: 4250730
    Abstract: A device for the ejection of a shaped part at the male die on a cross-feed press for non-cutting metal shaping is equipped with an ejector which is controlled by the crank-pin of a crankshaft via a connecting link, a cam disc and a roller arm. The cam contour P of the cam disc has an arc K concentric to the rocker shaft and joined to a straight section G and a runout section L. The cam disc has a displaceable cam shoe the outer edge of which is located in the plane of the straight section G and which extends or shortens the straight section G when shifted. This ensures that the standstill condition of the ejector with respect to the female die, required for holding the shaped part, may be retained even when adjustments are made to the length of the stroke of the ejector at the male die at the cam disc.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: February 17, 1981
    Assignee: Hatebur Umformmaschinen AG
    Inventor: Hans Richner