Patents by Inventor Gustav James Fehlhaber

Gustav James Fehlhaber 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: 4123919
    Abstract: A refrigeration feed system includes an accumulator adapted to contain liquid in its lower portion and to contain gas in its upper portion. A plurality of individual evaporators are arranged each at a different elevation above the accumulator. A pump withdraws liquid from the lower portion of the accumulator and pumps the liquid through a supply manifold to each one of the evaporators. There is a return manifold from each of the evaporators to the upper portion of the accumulator. Each evaporator has an upgoing pipe coming from the supply manifold and has a downgoing pipe going to the return manifold. A connecting device between the upgoing and downgoing pipes forms a weir disposed substantially at the elevation of the upper portion of the respective evaporator to which the manifold is connected. Liquid rising in the upgoing pipe can overflow into and mix with gas in the downgoing pipe and continue by gravital drainage back to the accumulator for recirculation.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: November 7, 1978
    Assignee: NPI Corporation
    Inventor: Gustav James Fehlhaber