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| Number | Title | Issue Date |
| 7055981 | Stretchable and shrinkable tree light strings A stretchable and shrinkable tree light string including a long trunk with many short pipes. The short pipes have one or many connecting rings. A base frame has a central axis to support the long trunk to stand up straight. Multiple branches connect at one end with ... | 06/06/2006 |
| 6314900 | High-velocity rudder A rudder, especially for water vessels, which in its one end is connected with the vessel's hull (1) and comprising a main rudder blade (3) and rudder flaps (5, 6) arranged to be turnable with respect to the main rudder blade (3). The new traits of the in... | 11/13/2001 |
| 5598802 | Hull configuration A new displacement hull configuration providing for homogenous flow of water under the stern including side-hull bulges that are relatively constant in size from the bow to mid-ship and tapering off to about zero at the stern. Additionally, the hull is pr... | 02/04/1997 |
| 5372527 | Turbo kick board The present invention relates to a turbo kick board. The turbo kick board includes, a base, propellers attached to the base to make the base stop and go, and a rudder attached to the base to make the base turn right and left.... | 12/13/1994 |
| 4771717 | Rudder for a water vessel A rudder assembly which includes a frame formed by upper and lower horizontal flanges which are connected to a rudder post. A pair of parallel vertical sidewalls are connected to the upper and lower flanges, and a main rudder blade is connected to the upp... | 09/20/1988 |
| 4733496 | Pivoting surfboard fin A novel fin for surfboards and watercraft that includes a pivoting rudder-like section that swings out when a turn is commenced, enhancing the maneuvrability of the surfboard by reducing the resistance of the fin as it moves sidewards through the water in... | 03/29/1988 |
| 4577579 | Hydrofoil seal Disclosed is apparatus for sealing the surface spaces between and along the leading portion of a hydrofoil (16) and its movable flap (18). The apparatus includes an upper seal member (44) and a lower seal member (46) that are joined together by a spring-b... | 03/25/1986 |
| 4510880 | Rudder arrangement for ships A ship's rudder having a flap at its trailing end, actuating apparatus for such flap comprises a sector member which is mounted on the flap at top end thereof, extending toward a rudder stock and has teeth concentric with pivot pins mounting the flap on t... | 04/16/1985 |
| 4448146 | Rudder with a stabilizer fin A high-performance main rudder with a stabilizer fin (10) articulated to the rudder plate (20) for ocean-going ships is provided with a fork-like sliding bearing (30) for a swivel piston (40) or drive rod held and guided by interchangeable slide or guide ... | 05/15/1984 |
| 4441447 | Removable rudder assembly A removable rudder assembly for a boat includes a rudder and upper and lower rudder shafts which are detachably connected together. The lower shaft is connected to the rudder, and connecting plugs are attached to the adjacent ends of the upper and lower s... | 04/10/1984 |
| 4307677 | Rudder for aquatic craft and floating apparatus The invention relates to a rudder for aquatic craft wherein the rudder member is provided with a fin which is pivotable independently thereof and with a rotor on the front edge of the rudder member and/or between the latter and the fin or between the rudd... | 12/29/1981 |
| 4284025 | Rudder arrangement for ships A rudder arrangement for ships comprises a rudder blade having a horizontal ivision to form an upper and a lower rudder blade. Each rudder blade is controllable as a separate rudder blade via a rudder shaft and an associated rudder machine.... | 08/18/1981 |
