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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 4155838 | Process for recovering usable materials from waste containing metals and non-metals The present invention relates to a process for separating waste material such as domestic refuse that has already been pretreated in order to eliminate the larger part of the paper, plastic film, food remnants and ferromagnetic materials and the particle ... | 05/22/1979 |
| 4144164 | Process for separating mixtures of particles A process for separating relatively fine solid particles differing in size and specific gravity by the use of a heavy medium which includes magnetizable particles where a mixture containing the fine particles to be recovered and the heavy medium are fed u... | 03/13/1979 |
| 4140628 | Dense medium separation A method for recovering magnetic dense medium particles from a suspension containing these particles and other less dense particles includes the steps of subjecting the suspension to at least a single stage high relative density separation to form a first... | 02/20/1979 |
| 4113608 | Apparatus for separating non-magnetic materials of different densities An apparatus for separating non-magnetic materials of different densities, which apparatus includes a material separating portion, in which a magnetic fluid is retained in a magnetic field having a gradient in a vertical direction. In this apparatus, a si... | 09/12/1978 |
| 4111798 | Separation of solids by varying the bulk density of a fluid separating medium A method and apparatus for separating objects having a density greater than a selected density value from objects having a density less than said selected density value. The method typically comprises: (a) providing a separation vessel having an upper and... | 09/05/1978 |
| 4093538 | Process for inhibiting the corrosion of heavy pulps for heavy media separation of minerals The corrosion of aqueous heavy pulps which contain ferrosilicon with between 8 and 20 weight % of silicon as a heavy medium and are used in the heavy media separation of minerals is inhibited. To this end, the heavy pulp is used in admixture with between ... | 06/06/1978 |
| 4085037 | Process for separation of non-magnetic particles with ferromagnetic media Particles of different densities are separated from admixture by ferrohydrodynamic movement in a liquid magnetic medium into zones thereof and retained in said zones upon solidification of said liquid medium.... | 04/18/1978 |
| 4076505 | Coal desulfurization process This invention provides an improved process for reducing the pyritic sulfur content of coal, which process involves (1) contacting finely divided coal under sink-float separation conditions with a heavy organic parting medium which contains dissolved ther... | 02/28/1978 |
| 4062765 | Apparatus and process for the separation of particles of different density with magnetic fluids Separation of a mixture of non-magnetic particles on the basis of their different densities is accomplished by levitation in a magnetic fluid using a multiplicity of magnetic gaps created by a grid of magnetic poles oriented with respect to each other suc... | 12/13/1977 |
| 4052297 | Materials handling apparatus for a ferrofluid sink/float separator This invention is directed to a scheme for increasing the height of a ferrofluid column in a ferrofluid sink/float separator by judiciously locating the access openings into the column of ferrofluid so that said opening is on a predetermined air-ferroflui... | 10/04/1977 |
| 4036441 | Process for recovering usable materials from waste material containing metals and non-metals The present invention relates to a process for separating scrap essentially consisting of non-ferromagnetic metals into several fractions by specific gravity in which only one heavy separating medium is required. The scrap has been recovered from waste pr... | 07/19/1977 |
| 4028228 | Process and apparatus for cleaning very fine ore In an ore cleaning process the underflow from an ore classifying cyclone is delivered to a heavy medium cyclone where the ore is cleaned. The underflow leaving the classifying cyclone is continually measured for specific gravity and flow rate while the sp... | 06/07/1977 |
| 4026477 | Process for the separation of components of scrap storage batteries A process for separation of the components of scrap lead storage batteries including crushing, and then heating the pieces while tumbling, dry screening the paste from the residual materials which are fed to a sink-float apparatus whose fluidized pulp com... | 05/31/1977 |
| 3998728 | Settling classifier for sorting mineral raw materials Settling classifier for sorting mineral raw materials into at least three components includes container means wherein at least two separating baths of different density are received, the container means having a partition therein separating the baths one ... | 12/21/1976 |
| 3993146 | Apparatus for mining coal using vertical bore hole and fluid Coal can be mined from a substantially vertical or steeply inclined seam by forming a cavity in the seam and filling the cavity with a magnetite slurry having a specific gravity greater than the coal being mined therefrom. As the coal is dislodged, it wil... | 11/23/1976 |
| 3982789 | Process and apparatus for conveying large particle mined coal, oil shale, ore, etc. from underground mines or from strip mines via a pipeline A process and apparatus for conveying large particle coal, oil shale, ore, etc. from underground or strip mines via a pipeline, said conveying being accomplished by introducing the solid material into a pipeline flowing water, such introduction into the p... | 09/28/1976 |
| 3943061 | Use of an iron/silicon/phosphorus-alloy in separation of minerals The invention provides the use of an iron/silicon/phosphorus-alloy containing between 8 and 25 weight % of silicon and between 0.3 and 2.5 weight % of phosphorus as heavy medium for making heavy pulps for the heavy media separation of minerals.... | 03/09/1976 |
