Patents by Inventor Wolfgang Scholten

Wolfgang Scholten 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).

  • Filler for sensor systems of temperature-sensitive displacement pickups
    Patent number: 5146016
    Abstract: 2H-heptafluoropropane (HFC 227) is used as filler in sensor systems of temperature-sensitive displacement pickups.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: September 8, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ewald Preisegger, Wolfgang Scholten, Thomas Muller
  • Apparatus for cleaning textiles, leather and furs by means of organic solvents, and for working up the solvent
    Patent number: 3990273
    Abstract: Apparatus for cleaning textiles, leather and furs by means of organic solvents as well as for working up the solvent, which comprises a cleaning drum with casing connected to a solvent cycle and a feed-back of solvent vapor including vapor liquefaction. The solvent cycle of the apparatus is provided with a pump, a filter, the cited distillation vessel and a solvent supply vessel containing a cooling cycle. The solvent vapor feed-back of the apparatus is provided with a sieve, a compressor, a condenser, a feed-back to the cited distillation vessel (drum casing) between compressor and condenser, and a duct from the condenser to the solvent supply vessel via a gas expansion device. The vapor feed-back is provided with a heat exchanger being part of the cooling cycle on the secondary side and a subsequent stop valve. The cooling cycle is provided with a compressor with subsequent heat exchanger being part of the feed-back on the primary side and a condensing coil being part of the solvent supply vessel.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: November 9, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Scholten, Joachim Naumann