Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 6511305 | Oscillatory pump-conveyor for transporting liquid-solid mixture with the employment of rotational and inertial forces A biphase conveyor of a mixture of fine solid components with pasty and liquid components based on the use of rotational and periodic inertial forces is described. In accordance with the present invention the conveyor comprises a mechanism which impresses... | 01/28/2003 |
| 6305917 | Pump consisting of a mechanism transmitting to a tubular circuit system periodic rotational inertial forces developing in the liquid contained therein continuous pressure and flow The details necessary for embodying the present invention are: a supporting frame; two rotors; a system for the periodic alternating motion thereof with phases of 0° and 90°; two tubular 2-phase circuits (CB) consisting of two parallel identical tubes t... | 10/23/2001 |
| 5641399 | Air development system for a pool cleaning device A swimming pool cleaning system 2 is provided which provides both water suction and compressed air to a pool cleaning device. A pump 20 draws water form a swimming pool P through the pool cleaning device, an attached vacuum hose 14 and a suction line 12. ... | 06/24/1997 |
| 4948341 | Water pumping system including a suction ram A pumping system for water in a pit comprises a feeding unit to be installed above the ground and a suction ram assembly to be immerged into water partially filling the pit. The suction ram assembly has a ram valve (4a, 4b) and a foot valve (12, 13) which... | 08/14/1990 |
| 4701108 | Variable volume ejector with motive fluid pulser A method and apparatus for ejecting fluids through use of a high pressure liquid motive fluid by forming hydraulic slugs from said motive fluid and conducting it through conventional ejection mechanisms, entraining a fluid which is to be ejected and depos... | 10/20/1987 |
| 4121895 | Kinetic energy type pumping system The present invention relates to improvements on an "inertia" type pumping system (actually using kinetic energy) including elimination of springs in the valves, include pressure dampening or cushioning means for dampening sharp liquid pressure rises inhe... | 10/24/1978 |
