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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 6244921 | Fin attachment system allowing roll angle alignment A fin assembly for securing a fin to a water craft in a desired angular position relative to a longitudinally oriented axis of the water craft, i.e. the roll angle, is provided in the form of a fin mounting mechanism incorporated in the bottom surface of ... | 06/12/2001 |
| 5503581 | Apparatus for adjustable fin and fin block A water ski adjustable fin block and fin are disclosed. The fin block employs a slidable wedge for clamping the fin in place within the fin block during use and allowing the fin to be unclamped just enough to allow adjustment of the fin. A screw arrangeme... | 04/02/1996 |
| 5224435 | Fin box assemblies for windsurfers A windsurfer board is formed, towards the tail end thereof, with a slot in which a box is fitted. The box provides a mounting for a fin which is movable, while in use, relative to the board in such manner as to permit simultaneous adjustment of the inclin... | 07/06/1993 |
| 5209686 | Sealing lip of plastic for the inlet opening for the dagger board housing and dagger board, particularly of sailboards The lip-type seal for the inlet opening (2) for the dagger board housing and the dagger board (3) exhibits two supporting strips (5) countersunk into the board hull (4) on both sides of the inlet opening (2) as well as two mounting strips (7) with a seali... | 05/11/1993 |
| 5152705 | Flow actuated fin system for water sport boards and the like A multiple fin surfboard defines a generally elongated planar surfboard having a plurality of elongated slots defined therein. The slots are grouped close to each end of the surfboard and support a corresponding plurality of fins in a pivotal attachment. ... | 10/06/1992 |
| 5129344 | Actuating mechanism An actuating mechanism is provided for controlling external devices by means of coaxial actuating cables or other suitable linkages. The actuator includes an internal slide element movable to selected detent positions by means of a lever arm which pushes ... | 07/14/1992 |
| 4439166 | Adjustable water ski fin and wing A water ski fin is carried by a housing mounted to the upper surface of the rear end of a ski with the fin extending downwardly through an elongated slot in the ski. The fin carries a transversely extending wing thereon and the combination is capable of b... | 03/27/1984 |
| 4378748 | Sailboat keel apparatus A sailboat carries a pair of opposed keel sections which are angularly positionable about a common hinge axis, either as a keel unit or individually, by means of compressed air biased hydraulic actuators connected via shock absorbers to the keel sections.... | 04/05/1983 |
| 3996875 | Intregral hydraulic pump and wheel steering mechanism for sailboats An improvement in a steering assembly for navigating a boat, such as a sailboat, having a vertically movable centerboard and/or an adjustable backstay either or both of which are movable by a hydraulic means including a hydraulic pump whereby to raise or ... | 12/14/1976 |
