Patents by Inventor Toivelemb Kivikas

Toivelemb Kivikas 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).

  • Plate heat exchanger
    Patent number: 4301864
    Abstract: In a plate heat exchanger having a large number of heat exchanging passages connected in parallel, the distribution of the flow between the passages will be unequal in that a larger flow passes through passages which are close to the inlets and outlets than through passages far away therefrom. To eliminate this problem, the passages are provided with means for regulating the flow resistance, said means being arranged so that passages which are situated farther away from the inlets and outlets have lower flow resistance than passages closer to said inlets and outlets.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: November 24, 1981
    Assignee: Alfa-Laval AB
    Inventors: Toivelemb Kivikas, Kaj Rissler, Dag Rynell, Malte Skoog