Pair of vortex generating fins for a motor boat

Description

FIG. 1 is a top plan view of a pair of vortex generating fins for a motor boat showing my new design, the broken lines are for illustrative purposes only;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an inside-end elevational view of the right side fin, the inside-end elevational view of a left side fin being a mirror image of that shown;

FIG. 4 is an outside-end elevational view of the left side fin, the outside-end elevational view of the right side fin being a mirror image of that shown;

FIG. 5 is a front elevational view of the left side fin, the front elevational view of the right side fin being a mirror image of that shown; and,

FIG. 6 is a rear elevational view of the left side fin, the rear elevational view of the right side fin being a mirror image of that shown.

Referenced Cited
U.S. Patent Documents
2740596 April 1956 Lee
4995840 February 26, 1991 Seale et al.
5058837 October 22, 1991 Wheeler
Foreign Patent Documents
9011929 October 1990 WOX
Patent History
Patent number: D329421
Type: Grant
Filed: Jul 27, 1990
Date of Patent: Sep 15, 1992
Inventor: Charles N. Brans (Niwot, CO)
Primary Examiner: Kay H. Chin
Attorney: Albert O. Cota
Application Number: 7/558,420