Patents by Inventor Hans-Jurgen Krock

Hans-Jurgen Krock 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).

  • Seawater pre-deaerator process for open-cycle ocean thermal energy conversion applications
    Patent number: 5207875
    Abstract: A seawater deaerator has a large reservoir through which seawater slowly flows. Gas is injected into the bottom of the reservoir through porous aeration stones forming bubble nuclei. The seed bubbles move upward through the seawater in the reservoir expanding but not coalescing, and withdrawing dissolved gas from the seawater. The deaerated seawater flows out of the reservoir and subsequently flows through spouts into a flash evaporator. Gas is withdrawn from a low pressure gas chamber at the top of the reservoir by a vacuum pump. The exhaust of the vacuum pump supplies gas to the air injectors.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: May 4, 1993
    Assignee: University of Hawaii
    Inventors: Manfred J. Zapka, Hans-Jurgen Krock
  • Seawater pre-deaerator for open-cycle ocean thermal energy conversion applications
    Patent number: 5096544
    Abstract: A seawater deaerator has a large reservoir through which seawater slowly flows. Gas is injected into the bottom of the reservoir through porous aeration stones forming bubble nuclei. The seed bubbles move upward through the seawater in the reservoir expanding but not coalescing, and withdrawing dissolved gas from the seawater. The deaerated seawater flows out of the reservoir and subsequently flows through spouts into a flash evaporator. Gas is withdrawn from a low pressure gas chamber at the top of the reservoir by a vacuum pump. The exhaust of the vacuum pump supplies gas to the air injectors.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: March 17, 1992
    Assignee: The Research Corporation of the University of Hawaii
    Inventors: Manfred J. Zapka, Hans-Jurgen Krock