Patents by Inventor David J. Landowski

David J. Landowski 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).

  • Systems and methods for suspending a lubricant in a marine propulsion device
    Patent number: 11685495
    Abstract: A system for suspending a lubricant in a marine propulsion device having a gearcase, the gearcase defining a gearset cavity for containing a propeller shaft gearset rotated by a driveshaft. The system includes a pump device configured to pump the lubricant away from the gearset cavity, and a reservoir located away from the gearset cavity and configured to receive the lubricant from the pump device. An input passage conveys the lubricant from the pump device to the reservoir, and an output passage conveys the lubricant from the reservoir to the gearset cavity. The reservoir is configured to retain a portion of the lubricant circulating between the gearset cavity and the reservoir.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: June 27, 2023
    Assignee: Brunswick Corporation
    Inventors: Joshua S. Smith, David J. Landowski, David J. Waldvogel
  • Systems and methods for suspending a lubricant in a marine propulsion device
    Patent number: 11247761
    Abstract: A system for suspending a lubricant in a marine propulsion device having a gearcase, the gearcase defining a gearset cavity for containing a propeller shaft gearset rotated by a driveshaft. The system includes a pump device configured to pump the lubricant away from the gearset cavity, and a reservoir located away from the gearset cavity and configured to receive the lubricant from the pump device. An input passage conveys the lubricant from the pump device to the reservoir, and an output passage conveys the lubricant from the reservoir to the gearset cavity. The reservoir is configured to retain at least 15% of the lubricant circulating between the gearset cavity and the reservoir.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: February 15, 2022
    Assignee: Brunswick Corporation
    Inventors: Joshua S. Smith, David J. Landowski, David J. Waldvogel