Patents by Inventor Herbert F. Rothschild

Herbert F. Rothschild 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: 4209364
    Abstract: Recovery of substantially pure water for reuse from waste feed solutions, saline solutions, etc. is carried out at considerably lower capital and/or operating costs using a modified absorption cycle. The process is carried out under vacuum so that relatively low temperature heat sources can be used to evaporate water as well as high temperature sources. The system comprises an evaporator, an absorber, a generator and condenser. A portion of the feed solution entering the evaporator vaporizes due to its latent heat and the vacuum of the system. The water vapor product is absorbed by an absorbent in the absorber. The absorbent solution is transferred to a higher pressure zone in the generator where the water held by the absorbent is vaporized. This vaporized water is condensed for recovery. A heat transfer medium is applied to each stage to either apply or remove heat as appropriate.
    Type: Grant
    Filed: April 10, 1974
    Date of Patent: June 24, 1980
    Inventor: Herbert F. Rothschild