Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7381109 | Water craft with new configuration of active hulls and stationary hulls for better hydrodynamic performance, greater stability and increased versatility Water craft achieving better hydrodynamic performance, greater stability and increased versatility. The improvement over the water craft in the U.S. Pat. No. 6,595,815 is achieved by the use of a new configuration of the active hulls and the stationary hull, the mod... | 06/03/2008 |
| 7247070 | Portable ice rescue craft A portable ice rescue craft includes a plurality of locking raft sections that are foldable for storage and transport. A drive unit includes a drive wheel driven by an electric motor via a drive belt. The drive wheel may include a plurality of spikes configured to e... | 07/24/2007 |
| 5427554 | Recreational water craft A recreational water craft of uncomplicated design and construction is provided herein which is adaptive to be manually powered by one or more crew members or readily converted from manual power to sail (or supplement by sail) without loss of stability or... | 06/27/1995 |
| 4511338 | Water bicycle and detachable device therefor A water bicycle and a detachable device for converting a sail board into a water bicycle. The water bicycle has a flotation member and a frame removably mounted to the flotation member. Pedals are rotatably mounted to the frame. Paddle wheels are provided... | 04/16/1985 |
| 4318700 | Paddle wheel operated watercraft A watercraft has two pontoons interconnected by framework which supports a propelling unit adjacent its bow end. The unit includes a paddle wheel between the two pontoons with exposed pedals to be engaged by the feet of a seated occupant. A rudder is atta... | 03/09/1982 |
| 4171675 | Centrifugal pump and paddle boat propulsion system A radially vaned rotor is mounted for rotation about a horizontal axis extending athwartships of a boat. A housing encircles the major portion of the rotor and has an axial inlet and a downwardly directed peripheral outlet. The tips of the rotor vanes pro... | 10/23/1979 |
| 4004544 | Twin turbine-wheel driven boat A rudderless motorboat propelled and steered by twin-turbine wheels also functioning as traction wheels to carry the boat over sandbars and other submerged bodies to prevent it from running aground. The stern section of the boat hull is provided with a pa... | 01/25/1977 |
