Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 6779964 | Viscous drag impeller components incorporated into pumps, turbines and transmissions The present invention relates generally to systems and methods for facilitating the movement of fluids, transferring mechanical power to fluid mediums, as well as deriving power from moving fluids. The present invention employs an impeller system in a variety of app... | 08/24/2004 |
| 6284392 | Superalloys with improved weldability for high temperature applications A cast nickel-base superalloy component (10) is made having a composition containing small amounts of both boron and zirconium which are effective in combination to provide increased weldability, where such alloy is adapted for welding by weld (18) to a s... | 09/04/2001 |
| 5173022 | Process for pumping a gas/liquid mixture in an oil extraction well and device for implementing the process The present invention relates to a process for pumping a two-phase gas/liquid mixture in an extraction well (11) whose initial gas percentage is greater than approximately 40% by volume, characterized in that it consists: in reducing the percentage of fre... | 12/22/1992 |
