Patents by Inventor Tor M. STOLPESTAD

Tor M. STOLPESTAD 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).

  • Method and system for producing fresh water using a reverse osmosis membrane system
    Patent number: 11603323
    Abstract: This publication relates to a method and a system for producing freshwater through a reverse osmosis process in a submerged membrane system requiring a differential pressure over the membrane system. The differential pressure is provided by introducing gas bubbles in the riser device (2) downstream the outlet (7) for fresh water in the riser device (2). The system comprises at least one submerged, reverse osmosis unit (1), with an inlet (4) for water and an outlet (7) for fresh water, a riser device (2) extending from the outlet (7) of the submerged membrane system to at, above or below sea level and a system for providing a low pressure side for the reverse osmosis process.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: March 14, 2023
    Inventors: Tor M. Stolpestad, Rolf Birger Bendiksen
  • METHOD AND SYSTEM FOR PRODUCING FRESH WATER USING A REVERSE OSMOSIS MEMBRANE SYSTEM
    Publication number: 20200407242
    Abstract: This publication relates to a method and a system for producing freshwater through a reverse osmosis process in a submerged membrane system requiring a differential pressure over the membrane system. The differential pressure is provided by introducing gas bubbles in the riser device (2) downstream the outlet (7) for fresh water in the riser device (2). The system comprises at least one submerged, reverse osmosis unit (1), with an inlet (4) for water and an outlet (7) for fresh water, a riser device (2) extending from the outlet (7) of the submerged membrane system to at, above or below sea level and a system for providing a low pressure side for the reverse osmosis process.
    Type: Application
    Filed: March 6, 2019
    Publication date: December 31, 2020
    Inventors: Tor M. STOLPESTAD, Rolf Birger BENDIKSEN