Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7399384 | Coke drum bottom throttling valve and system A coke drum bottom de-heading system having an internal shroud enclosure and a shroud end cap opened by a flange to a coke bottom de-heading valve capable of accepting the end of a gate valve upon actuation. Acting in coordination with the shroud enclosure to preven... | 07/15/2008 |
| 7264694 | Retort heating apparatus and methods A retort heating apparatus for processing a feed material includes a heating chamber bounded at least in part by a side wall. A plurality of baffles are at least partially disposed within the heating chamber. Each baffle includes an elongated body having a top surfa... | 09/04/2007 |
| 7033460 | Coke drum bottom throttling valve and system A coke drum bottom de-heading system having an internal shroud enclosure and a shroud end cap opened by a flange to a coke bottom de-heading valve capable of accepting the end of a gate valve upon actuation. Acting in coordination with the shroud enclosure to preven... | 04/25/2006 |
| 6805773 | Method of protecting a surface in a gasifier The method of protecting a surface in a gasifier which is normally an exposed surface in the gasifier. The method includes forming a refractory attachment with a securement surface that confronts the protectable surface in the gasifier and mechanically securing the ... | 10/19/2004 |
| 6228224 | Protective refractory shield for a gasifier The protective refractory shield for a gasifier includes a refractory attachment that is mechanically secured to a protectable surface of the gasifier. The refractory attachment includes a plurality of attachment members of predetermined angular sector. T... | 05/08/2001 |
| 4980029 | Apparatus for treating waste materials Gaseous, liguid and solid fuels are recovered from carbonaceous organic waste material by treating charges of waste material in several successive stages including preheating, drying and conversion into solid and gaseous phases, all as a result of heating... | 12/25/1990 |
| 4919763 | Apparatus for converting sewage sludge filter cake by pyrolysis The invention relates to an apparatus for converting sewage-sludge filter cakes into oil, gas and coke by pyrolysis. The apparatus has two dewatering stages--a preliminary evaporating stage and a residual evaporating stage, a conversion stage and a coolin... | 04/24/1990 |
| 4398471 | Device and method for pyrolyzing waste materials This invention is a device for pyrolyzing waste materials comprising a low - temperature carbonizing reactor. The reactor includes a longitudinally extending tubular vessel adapted to be loaded with waste materials to be pyrolyzed and a flue gas duct whic... | 08/16/1983 |
| 4247367 | Apparatus for solid waste pyrolysis This disclosure is directed to an economical system for the pyrolysis of municipal solid waste to recover valuable by-products while reducing the putrecibility and bulk of the residue requiring disposal. Prior to this treatment, the solid waste has been p... | 01/27/1981 |
