Ships – Steering mechanism – Speed retarders
Patent
1990-11-01
1991-12-10
Basinger, Sherman D.
Ships
Steering mechanism
Speed retarders
114145R, B63H 2548
Patent
active
050708031
ABSTRACT:
A trolling speed reduction apparatus for slowing the trolling speed of boats having an inboard engine and a steerable rudder mounted under the stern of the boat aft of a propeller driven by the inboard engine. The rudder has first and second opposed major sides and has first and second deflector plates carried on opposite sides of the rudder. The deflector plates are moveable between a first, closed position wherein the first and second deflector plates reside closely adjacent to an substantially along the respective first and second major sides of the rudder and are substantially inoperative and a second, open position wherein the first and second deflector plates extend outwardly away from the opposed sides of the rudder into the wash from the propeller and are operative to create speed reducing drag to slow the forward movement of the boat.
REFERENCES:
patent: 947833 (1910-02-01), Lund
patent: 1257165 (1918-02-01), Westendarp
patent: 1382809 (1921-06-01), Stewart
patent: 2256898 (1941-09-01), Ehmke
patent: 2719503 (1955-10-01), Smith
patent: 2751875 (1956-06-01), Henry
patent: 2916005 (1959-12-01), Parsons
patent: 3117548 (1964-01-01), Rasmussen
patent: 3136280 (1964-06-01), Bergum
patent: 3730127 (1973-05-01), Pedersen
Adams, III W. Thad
Basinger Sherman D.
Brahan Thomas J.
LandOfFree
Method and apparatus for reducing the trolling speed of boats ha does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for reducing the trolling speed of boats ha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing the trolling speed of boats ha will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1033007