Bizarre Patents
A helium-filled sun shade for protecting individuals engaged in outdoor activities.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5042964 | Flash smelting furnace A method and corresponding apparatus for improving the control and efficiency of a combustion reaction in a flash smelting furnace, having the steps of mixing a first oxidizing gas having a first oxygen concentration with solid particles consisting of at ... | 08/27/1991 |
| 4790692 | Arrangement for transporting disintegrated particulate solids The invention relates to an arrangement for transporting disintegrated solid particles, in which the particles are transported by a quantity of air placed under an over pressure. The weight ratio of the particle/aix mixture lies within a range at which pa... | 12/13/1988 |
| 4490171 | Method and apparatus for injecting pulverized fuel into a blast furnace A method for injecting a pulverized fuel into a blast furnace uses a pulverulent fuel injecting burner which is protruded into a blow pipe through a wall thereof near the tuyere of a blast furnace. The burner injects a pulverized fuel into the blast furna... | 12/25/1984 |
| 4363473 | Apparatus for reducing iron ore or the like A reduction process and apparatus wherein the flow of the reducing fluid through the fixed bed of iron ore, oxidized pellet or the like to be reduced is reversed in direction so that the iron ore, oxidized pellet or the like, at any place in the bed, may ... | 12/14/1982 |
| 4270740 | Apparatus for producing molten iron by submerged combustion Apparatus for reducing particulate iron oxide and producing molten iron in which coal and oxygen are injected into a molten iron bath to melt the iron, gasify the coal and produce a hot off-gas which is then used as the reductant in a counterflow shaft fu... | 06/02/1981 |
| 4249722 | Apparatus for the flash oxidation of metal concentrates A burner for the flash oxidation of particles of metal concentrates has three downwardly directed, concentrically mounted tubes each having a venturi nozzle on the discharge end thereof. Finely divided metal concentrates introduced into the annular space ... | 02/10/1981 |
| 4180251 | Apparatus for recovering lead from battery mud An apparatus for recovering lead from worn out electric storage batteries in which finely divided dried battery mud is injected into a stream of air through the veni contracta of a venturi in an air conduit. A reducing gas and oxygen are successively intr... | 12/25/1979 |
| 4072502 | Method apparatus for increasing blast gas temperature in a shaft furnace A method and apparatus for increasing blast gas temperature in a shaft furnace by passing at least part of the blast gas through a plasma burner, and also supplying additional fuel to the furnace at the tuyere level.... | 02/07/1978 |
| 4034969 | Oxidation roasting of ore The roasting temperature of ore, such as sulfide concentrate, is controlled by feeding water and air under pressure to at least one spray nozzle located relative to a roasting zone containing the ore, means being employed for selectively varying the ratio... | 07/12/1977 |
| 3954254 | Metallurgical furnace A metallurgical furnace has an annular conduit or hot blast plenum encircling and formed as a part of the shell of the furnace, and such plenum has a variable venturi throat or passageway through which the wind or hot blast enters the furnace proper. The ... | 05/04/1976 |
| 3937449 | Liquid-fuel atomization and injection device Apparatus for atomizing and injecting fuel into a furnace, such as a blast furnace, in which two concentric tubes form a dual passage injection apparatus, the discharge end of the outer tube extending beyond the discharge end of the inner tube to form an ... | 02/10/1976 |
