Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 5574956 | Method and apparatus for treatment sulphidic concentrates A method for oxidizing treatment of molten matte and at the same time directly smelting sulphidic concentrate in a refractory-lined liquid bath reactor, e.g. a converter, into which oxidizing air is introduced below the surface of the liquid bath. For add... | 11/12/1996 |
| 4878943 | Process of dezincifying a material flow when operating a pig-iron production plant There is disclosed a process of dezincifying the flow of material at the operation of a plant for the production of pig iron including a direct reduction shaft furnace and a meltdown gasifier. The crude reducing gas drawn off the meltdown gasifier is dedusted ... | 11/07/1989 |
| 4867787 | Mill arrangement with temporary storage vessel and a process of operating the same In operating a mill including a blast furnace and a steel converter, it is difficult to mutually adapt the operations of the blast furnace and of the converter in a flexible way. When using scrap as a coolant in the refining process, undesired accompanyin... | 09/19/1989 |
| 4286775 | Apparatus for producing molten iron from iron oxide with coal and oxygen A method and apparatus for reducing particulate iron oxide and producing molten iron in which coal and oxygen are impinged onto a molten iron bath in a closed vessel to melt the iron and gasify the coal. The hot off gas from the vessel is removed and used... | 09/01/1981 |
| 4056262 | Cupola furnace to enable continuous smelting and refining of cement copper and method therefor Use of a shaft kiln in continuous smelting and refining of cement copper is made possible with a mix preheater, a refined gas preheater, an air preheater, an air mix feeder and forehearths for cement oxidation and reduction, and wherein oxidation is achie... | 11/01/1977 |
| 4050683 | Smelting plant and method Iron-containing materials are loaded into the top of a shaft furnace to form therein an upright column of the materials. A burner forms a flame above the floor of the furnace to heat the base of the column and thereby melt the materials at the base of the... | 09/27/1977 |
| 3963483 | Direct reduction steelmaking process Molten steel is continually and directly made within the bath of a metallurgical furnace by the rapid reduction of iron compounds through their reaction with carbonaceous fines continually injected below the molten metal surface. Heat for the process in o... | 06/15/1976 |
