Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 6833106 | Compact blast furnace installation In order to design a blast furnace in a space and cost-saving manner, the invention provides for an especially compact blast furnace (10) having no hearth, wherein the burden is transported to the charging platform by vertical conveyers (20) and a comp... | 12/21/2004 |
| 6368549 | Metallurgical vessel Disclosed is a metallurgical vessel, in particular a converter for treating liquid molten metals, in particular steel, formed of a refractory lining and a supporting metal shell that surrounds the refractory lining. The vessel is composed of welded togeth... | 04/09/2002 |
| 6287512 | Frame for a blast furnace A frame for supporting structural components of a blast furnace includes a bottom section connected to a foundation, a middle section and a top structure arranged above the furnace top, wherein the frame is manufactured as a latticework construction and/o... | 09/11/2001 |
| 5445363 | Apparatus for the pneumatic transport of large iron-bearing particles In method and apparatus for producing iron and steel from iron cores largely composed of iron oxides, wherein a direct reduction process is used to produce a solid particulate intermediate product, generally known as sponge Iron or Direct Reduced Iron (DR... | 08/29/1995 |
| 4344607 | Blast furnace support apparatus Support apparatus for a vertically disposed furnace having a unique mantle-to-bosh configuration and lower stack section to provide for expansion and contraction between the mantle and bosh jackets.... | 08/17/1982 |
| 4003558 | Supporting structure for blast furnaces A supporting structure for a blast furnace in which the mantle and stack are supported on columns spaced a substantial distance from the furnace. Trusses and girders span the spaces between columns. The girders carry a frame which surrounds the furnace ab... | 01/18/1977 |
