Patent ID: 9745031
Date: 2017-08-29
CPC Classifications: B63B,B63H

Claim:
1. A fin stabilizer for stabilizing a watercraft against rolling movements, the fin stabilizer comprising: a first fin connected to and configured to be pivoted by a drive shaft and having a first fin central plane, a second fin being spaced from the first fin such that the second fin does not directly contact any portion of the first fin, and a connection body comprising at least one elastic deformation body formed out of at least a first material and a rigid element formed out of a second material, the connection body being deformable and connecting the second fin to the first fin such that an angle between the second fin and the first fin central plane can vary, the connection body holding the second fin at a first angle with respect to the first fin central plane when a water force acting on the second fin is lower than a predetermined amount, the connection body being configured to change the angle between the second fin and the first fin central plane whenever the water force acting on the second fin is greater than the predetermined amount, the connection body being elastic such that when the water force acting on the second fin decreases from above the predetermined amount to below the predetermined amount the second fin reverts back to the first angle, wherein the connection body is connected to the first fin by a first connecting element and the connection body is connected to the second fin by a second connecting element, the rigid element extends from the first connecting element to the second connecting element and is embedded within the at least one deformation body, and wherein the first material is different than the second material.