Patents by Inventor Wolfgang Baldus

Wolfgang Baldus 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).

  • Intermittent vibration in fractional crystallization
    Patent number: 4178776
    Abstract: An inspissate of a solution having a solvent which can be crystallized out by cooling is passed into contact with an internally cooled surface through which a coolant is circulated. Relative vibration is established between the solution to be cooled and the surface with at least the vibration of the surface being interrupted periodically or aperiodically. The solution and the surface can be vibrated separately in alternating periods.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: December 18, 1979
    Assignee: Linde Aktiengesellschaft
    Inventors: Wolfgang Baldus, Wilhelm Lehmer
  • Method of and apparatus for the generation of cold
    Patent number: 4169361
    Abstract: Cold is generated, according to the invention, by compressing a refrigerant and expanding the refrigerant isentropically in a nozzle. Advantageously at least a part of the expanded refrigerant is passed in indirect heat exchanging relationship with the portion of the refrigerant prior to expansion. An expansion machine can be used to work-expand a portion of the compressed refrigerant with the expanded gas returned to the compressor. The balance of the compressed stream is expanded in the nozzle.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: October 2, 1979
    Assignee: Linde Aktiengesellschaft
    Inventor: Wolfgang Baldus