Patents by Inventor Hans-Joachim Steindorf

Hans-Joachim Steindorf 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: 5551486
    Abstract: The present disclosure concerns a method and apparatus for filling casting molds with casting resin or similar casting ready liquid media using a feed system including pumps or a pressurized vessel. In order to carry out mold filling in a prep-programmed and precisely reproducible manner, regarding the filling rate, the casting resin is fed according to a predetermined filling function of the quantity of casting resin per unit time (filling rate).
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: September 3, 1996
    Assignee: Wilhelm Hedrich Vakuumanlagen GmbH & Co. KG
    Inventors: Erhard Hauser, Hans-Joachim Steindorf
  • Patent number: 5147660
    Abstract: A device for filling molds with a casting resin or the like. An elastic casting container, with at least one fill and discharge opening, is arranged in the pressure box, which casting container selectively receives the casting resin therein from a feed pipe and delivers the casting resin to the mold through a fill pipe. The casting container is emptied by a pressure buildup inside of the pressure box, either by means of a gaseous or a liquid pressure medium. In this manner, the casting container can be loaded with the casting resin such that a renewed gas loading of the already degassed casting resin prior to the filling of the mold no longer occurs, while simultaneously limiting cleaning operations.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: September 15, 1992
    Assignee: Wilhelm Hedrich Vakuumanlagen GmbH & Co. KG
    Inventor: Hans-Joachim Steindorf