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 |
| 5219076 | Spray fractionation of particles in liquid suspension Fractionation apparatus (20) is disclosed which utilizes a rapidly rotating disk which receives a liquid suspension of particles to be separated onto its rotating face surface (35). When the film of liquid and particles on the rotating face surface (35) r... | 06/15/1993 |
| 4469591 | Foam separator A method and system are provided for separating low and high density particles from a mixture thereof. A foam is continuously generated and carried on the outer surface of a horizontal drum. The mixture of particles is deposited on top of the foam surface... | 09/04/1984 |
| 4339042 | Treatment of minerals There is described a process for separating from a mixture of mineral components at least one of the components. The process comprises the steps of (a) dispersing the mixture of mineral components in water so as to form an aqueous suspension containing sa... | 07/13/1982 |
| 4334987 | Method of separation of solid phase in drilling mud The method of separating the solid phase in a drilling mud includes forming from the drilling mud an adhesion layer 2 on a rotated curvilinear closed surface 3 partly projected into the drilling mud. Then a portion of this adhesion layer is separated onto... | 06/15/1982 |
| 4274948 | Separation of minerals A process is described for the separation of impurities from an aqueous slurry, dispersion or suspension. Streams of aqueous phase and an organic phase comprising a non-polar organic liquid are passed through a multi-compartment rotary contactor. A collec... | 06/23/1981 |
