US 12,227,272 B2
Fin stabilizer with internal actuation mechanism
John D. Venables, Monroe, CT (US); Steven J. Venables, Monroe, CT (US); and Ryan W. Knapp, Sandy Hook, CT (US)
Filed by Naiad Maritime Group, Inc., Shelton, CT (US)
Filed on Jan. 27, 2022, as Appl. No. 17/585,905.
Claims priority of provisional application 63/142,275, filed on Jan. 27, 2021.
Prior Publication US 2022/0234699 A1, Jul. 28, 2022
Int. Cl. B63B 39/06 (2006.01)
CPC B63B 39/06 (2013.01) [B63B 2039/067 (2013.01); B63B 2039/068 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A vessel stabilizer comprising:
a fin having a cavity therein;
a hydraulic actuator mounted inside said cavity;
a shaft which is fixed in rotation about its elongate axis, the shaft configured to extend from the vessel below a waterline and the hydraulic actuator coupled to the shaft such that the actuator, when actuated, causes the fin to rotate about the elongate axis of the shaft while the shaft remains fixed in rotation about the elongate axis relative to the vessel.