Patents by Inventor Joachim Engelhardt

Joachim Engelhardt 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).

  • Method of effectively utilizing thermal energy in spray drying
    Patent number: 4239588
    Abstract: The thermal energy required for spray drying a solution of a solid product in a volatile, liquid solvent is effectively utilized by partly converting the solvent to a gaseous phase in a multiple-effect evaporator and by spray drying the resulting concentrate by means of a gaseous fluid at least partly preheated by heat exchange with solvent vapor or condensate from at least two effects in respective stages of a multiple-stage heating arrangement.
    Type: Grant
    Filed: March 27, 1979
    Date of Patent: December 16, 1980
    Assignee: Wiegand Karlsruhe GmbH
    Inventor: Joachim Engelhardt