Patents by Inventor Douglas A. Kiesling

Douglas A. Kiesling 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).

  • Torque transmitting device for mounting a propeller to a propeller shaft of a marine propulsion system
    Patent number: 6478543
    Abstract: A torque transmitting device for use in conjunction with a marine propulsion system provides an adapter that is attached in torque transmitting relation with a propulsor shaft for rotation about a central axis of rotation. The first insert portion is attached in torque transmitting relation with the adapter and a second insert portion is attached in torque transmitting relation with a hub of the propulsor hub which can be a marine propeller or an impeller. A third insert portion is connected between the first and second insert portions and is resilient in order to allow the first and second insert portions to rotate relative to each other about the central axis of rotation. The adapter is shaped to prevent compression of the first, second, and third insert portions in a direction parallel to the central axis of rotation.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: November 12, 2002
    Assignee: Brunswick Corporation
    Inventors: John A. Tuchscherer, Daniel J. Schlagenhaft, Michael A. Karls, Robert B. Weronke, Douglas A. Kiesling, Mitesh B. Sheth, Donald F. Harry, Randall J. Poirier, Richard A. Davis
  • Marine propulsion unit universal drive assembly with through-bellows exhaust
    Patent number: 4940434
    Abstract: A marine propulsion device (11) is provided wherein a pair of generally telescoped bellows (31; 38,46) surround the universal joint (18) and provide an exhaust passage (44) therebetween which communicates between the inboard engine (9) and the stern drive unit (2). In the embodiment disclosed herein, the inner bellows (31) rotates with the universal joint while the outer bellows (38,46) is stationary. The bellows are preferably of helical or spiral configuration and the rotating inner bellows forms an exhaust pump. In one embodiment, (FIGS. 1-3), the bellows (31,38) are concentrically disposed, while in another embodiment (FIGS. 4-5) the bellows (31,46) are eccentrically mounted.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: July 10, 1990
    Assignee: Brunswick Corporation
    Inventor: Douglas A. Kiesling
  • Internal routing of hydraulic fluid for trim cylinders
    Patent number: 4846742
    Abstract: A stern drive for a marine vessel is provided with a series of internal passageways that route the hydraulic fluid to the trim cylinders so that external hydraulic hoses can be eliminated.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: July 11, 1989
    Assignee: Brunswick Corporation
    Inventors: Francis Bertram, Douglas A. Kiesling