New Patents V

upper surface of the liquid carrier medium within the flotation zone. A second outlet is used to discharge an impeded flow maintained at a lower flow rate than the free flow from said first discharging outlet. The chemical reagent is com- posed of a liquid hydrocarbon, a reducing material and an activator material. A trough shaped vessel has a discharge end with an upper outlet means and a lower outlet means. The ves- sel has a structural configuration effective to provide the continuous, substantially quiescent movement of the mixture through the vessel. Mineral value fines subject to having an oxygen- controlled surface condition constitute the selec- ted particulate material being extracted from the mixture of liquids and solids. These selected materials include bituminous coal fines, an- thracite coal fines, molybdenum sulfide values, sulfur and graphite.

4540495

PROCESS FOR TREATING MUNICIPAL SOLID WASTE

Clifford Holloway assigned to Holloway Lewis B; Holloway Winford

A process for treating municipal solid waste material in the presence of moisture for the separation and recovery of inorganic matter and organic matter wherein the waste material is fed into a pressure chamber and is agitated therein. The contents of the pressure chamber are sub- jected to heat under a pressure for a pre- determined period of time to cook, sterilize and soften the organic matter contained therein. The moisture content of the waste material is con- trolled so that the fines of the organic fraction have a residual moisture content ranging from about 60% to 70%. After releasing the pressure from the pressure chamber, the cooked waste material is removed and then separated and clas- sified into various fractions thereof including an inorganic fraction and the fines of the organic fraction having a residual moisture content ranging from approximately 60% to 70%.

4543964

METHOD FOR TESTING FOR IMMUNE RESPONSES TO FOOD

James Breneman

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i I = l

A device for the detecting of an individual's Gell-Coombs Types I, II, III and IV immune response reactions to edible substances includes a mixture of an edible substance and a solution of non-toxic aprotic solvent, such as DMSO and water. The solvent acts as a carrier transporting the food beneath the skin. The device holds the mixture against the skin and prevents evapora- tion of the solution. The method includes the preparation of a plurality of mixtures of different edible substances and a solution of non-toxic aprotic solution, the application of the mixture to the skin of the individual and the holding of the mixture on the skin for a predetermined period of time. The mixture is subsequently removed, and the site is inspected to determine whether a Type I, II, III or IV Gell-Coombs im- mune response reaction has occurred. Control sites containing the solvent only and a control site containing a food substance which causes the skin to fluoresce upon exposure to an ultraviolet light may also be used. Fluorescence indicates whether the mixtures have been in sufficient con- tact with the skin for the required period of time.

4544374

APPARATUS FOR BURNING ORGANIC MATERIALS

Heinz Mallek, Manfred Laser, Dorothee Er- misch, Linnich Tetz, Federal Republic Of Ger- many assigned to Kernforschungsanlage Julich GmbH

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