Patents by Inventor Walter Jost

Walter Jost 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: 4947983
    Abstract: A distillation apparatus includes a heating device, an inlet for medium to be distilled, a vapor outlet, a distillation space between the distillation medium inlet and the vapor outlet and a drain for the separate components of the solvent, arranged in the bottom part of the distilling space and extending from same. In a heating vessel, which is able to be filled with a heating medium to be heated by the heating device, there is a downwardly extending down tube joined with the inlet and an up tube extending upwards to the vapor inlet. During operation the two tubes are surrounded by heating medium and form the distillation space. The drain is arranged under the junction between the up and down tubes and is provided with a U-trap.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: August 14, 1990
    Inventor: Walter Jost
  • Patent number: 4483160
    Abstract: A dry cleaning apparatus for pieces of fabric such as clothing has a tumbler drum with a washing space within it in which the clothing is firstly washed with solvent and thereafter is dried and if necessary aired. To this end the drum space with the clothing therein is firstly joined up with a solvent circulation system and then with a hot air circulation system. The solvent circulation system has a filter unit within it for cleaning the solvent and the air circulation system has an air cooler with a condensate trap and furthermore an air heater. For drying the dirt in the filter unit air is branched off from the hot air circulation system at a point downstream from the air heater so that while drying is taking place part of the hot air makes its way through the filter unit and then comes out of the filter unit and by way of a second branch duct goes back into the hot air circulation.
    Type: Grant
    Filed: December 14, 1982
    Date of Patent: November 20, 1984
    Inventor: Walter Jost