Patents by Inventor Mark A. Graf

Mark A. Graf 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).

  • Methods and systems for controlling trim position of a marine drive
    Patent number: 11827325
    Abstract: A method of automatically controlling trim position of a marine drive with a control system on a marine vessel includes receiving a user-selected command associated with wake surfing and then controlling a trim actuator to automatically position the marine drive in a tucked position, tucked position is between a vertical trim position and a minimum running trim position. Once a vessel condition of the marine vessel reaches a first threshold vessel condition the trim actuator is controlled to trim up the marine drive to a predetermined target trim position to generate wave behind the marine vessel. The first threshold vessel condition is at least one of a threshold vessel speed, a threshold engine speed, a threshold engine load, and a threshold vessel pitch.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: November 28, 2023
    Assignee: Brunswick Corporation
    Inventors: Andrew J. Przybyl, Kyle F. Karnick, Mark A. Graf, Jeffrey D. Reifsnyder
  • Methods and systems for controlling trim position of a marine drive
    Patent number: 11260946
    Abstract: A method of automatically controlling trim position of a marine drive with a control system on a marine vessel includes receiving a user-selected command associated with wake surfing and then controlling a trim actuator to automatically position the marine drive in a tucked position, tucked position is between a vertical trim position and a minimum running trim position. Once a vessel condition of the marine vessel reaches a first threshold vessel condition the trim actuator is controlled to trim up the marine drive to a predetermined target trim position to generate wave behind the marine vessel. The first threshold vessel condition is at least one of a threshold vessel speed, a threshold engine speed, a threshold engine load, and a threshold vessel pitch.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: March 1, 2022
    Assignee: Brunswick Corporation
    Inventors: Andrew J. Przybyl, Kyle F. Karnick, Mark A. Graf, Jeffrey D. Reifsnyder