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US 4,377,123 AGranted
Boat stabilizer apparatus
OwnerLester L. Jacksoninventor
Life of this patent
Estimating the term…
Abstract
A boat stabilizer apparatus comprising as an integral unit a stabilizer fin, a fin support strut to maintain the upright position of the stabilizer fin, moveable baffles attached to the fin to counterbalance laterally moving water, and an elongated shaft for attaching the stabilizer to the boat. The stabilizer reduces rolling or heeling, aids in controlling the boat, and serves to prevent the boat from being blown off course.
Claims4
Boat stabilizer apparatus, comprising in combination:
- an elongate shaft having means at one end thereof for connecting to the hull of a boat, so that said shaft extends downwardly below the boat hull;
- stabilizer fin means having mutually opposing sides and being fixedly attached to said elongate shaft at the opposite end of said shaft;
- a pair of baffle means each of which is hingedly attached at one edge thereof to a respective side of said stabilizer fin means;
- a pair of vertical flange means each of which is attached to the outer vertical edge of a respective one of said pair of baffle means, said flange means being attached at such an angle to said baffle means that said flange means diverge outwardly from said stabilizer fin means, and hold said baffle means in a closed position relative to said stabilizer fin means when the boat is moving forward and hold said baffle means in an open position when the boat is moving rearwardly;
- and
- baffle stop means mounted respectively on said pair of baffle means for limiting the distance to which the baffle means can extend from said stabilizer fin means.
3 more elements
Dependencies are inferred from the claim text.