Patents by Inventor Sven Willgren

Sven Willgren 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).

  • Draining arrangement of a propulsion unit
    Patent number: 12043362
    Abstract: A draining arrangement of a propulsion unit of a marine vessel. The propulsion unit includes a shell structure. The shell structure limiting at least one bottom section configured to receive liquids. The draining arrangement including a pneumatically operated drainage arrangement including an intermediate tank within the shell structure, a pressurizing arrangement functionally connected to the intermediate tank and configured to selectively provide a vacuum in the intermediate tank or an excess pressure in the intermediate tank, a first liquid line that is provided between the intermediate tank and said at least one bottom section, and a second liquid to line that is provided between the intermediate tank and a collector arrangement within the hull of the marine vessel.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: July 23, 2024
    Assignee: ABB Oy
    Inventors: Jukka Laine, Sven Willgren, Toni Niska
  • DRAINING ARRANGEMENT OF A PROPULSION UNIT
    Publication number: 20230182882
    Abstract: A draining arrangement of a propulsion unit of a marine vessel. The propulsion unit includes a shell structure. The shell structure limiting at least one bottom section configured to receive liquids. The draining arrangement including a pneumatically operated drainage arrangement including an intermediate tank within the shell structure, a pressurizing arrangement functionally connected to the intermediate tank and configured to selectively provide a vacuum in the intermediate tank or an excess pressure in the intermediate tank, a first liquid line that is provided between the intermediate tank and said at least one bottom section, and a second liquid to line that is provided between the intermediate tank and a collector arrangement within the hull of the marine vessel.
    Type: Application
    Filed: December 12, 2022
    Publication date: June 15, 2023
    Inventors: Jukka Laine, Sven Willgren, Toni Niska