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 |
| 7175683 | Process for transforming sludge into NPK type granulated fertilizer A process for transforming sludge into npk type granulated fertilizer in which the energy consume is reduced a 90% thanks to the addition of a special filtration step in which the water content is reduced a 50% and the remaining water is evaporated by the exothermic... | 02/13/2007 |
| 6905662 | Elimination of undesirable volatile organic byproducts of an alumina process Disclosed is a process for the elimination of volatile, foul-smelling organic compounds which are liberated in a gas suspension calciner process utilized to manufacture alumina. The process comprises recirculating captured alumina dust on which undesirable volatile ... | 06/14/2005 |
| 6746646 | Method and apparatus for the disinfecting biosolids A biosolids treatment system comprising a storage tank for containing a quantity of biosolids sludge, a system of disinfection piping within the storage tank comprised of a segment of inner biosolids piping having a plurality of holes spirally arranged at a desired ... | 06/08/2004 |
| 6256902 | Apparatus and method for desiccating and deagglomerating wet, particulate materials An apparatus and method for drying and deagglomerating substances of finely-divided solids suspended in a fluid medium. The apparatus includes the basic components of a phenumatic friction dryer, a flash dryer and a ring dryer.... | 07/10/2001 |
| 6237246 | Treating sewage or like sludge There is disclosed a process for treating sewage sludge or similar organic sludge in which dewatered sludge cake and an alkaline admixture are mixed and then dried under pasteurization conditions utilizing heat from the exothermic reaction with the alkali... | 05/29/2001 |
| 6138378 | Wet gas processing method and the apparatus using the same This invention is related to a wet gas process which would not require a spray pump, and which would allow the absorption liquid to be recovered smoothly even if the flow velocity of the gases entrained to the liquid should decrease. A wet gas processing ... | 10/31/2000 |
| 6085441 | Process for drying sewage sludge or sludges of similar consistency In a process for drying sewage sludge or sludges of similar consistency, use is made of a device (13) in which vapors arising during contact drying are introduced to at least one compression stage. This stage compresses the vapors to a higher pressure and... | 07/11/2000 |
| 5983521 | Process for splitting recycled combustion gases in a drying system A process for drying a wet material in a drying system includes supplying a current of heated gas to a dryer from a combustion chamber. The material is exposed to the current in the dryer. The dried material is separated from the current of heated gas. Th... | 11/16/1999 |
| 5946818 | Process and apparatus for drying liquid-borne solid material A method and apparatus are disclosed for continuously drying, preferably with agglomeration and/or coating and sizing, and separating a solid product from a liquid feed material, especially bauxite slurry which passes through a very sticky phase during dr... | 09/07/1999 |
| 5913589 | Combination product cooling and flux management apparatus A combination product cooling and flux management apparatus is mounted above a reflow soldering oven. The apparatus has a sealed housing with four openings: an ambient air inlet, an ambient air outlet, a recirculating gas inlet and a recirculating gas out... | 06/22/1999 |
| 5814234 | Integrated soil and fluid decontamination system A method for decontaminating both soil and mixed waste water polluted by hydrocarbons in a single integrated process is disclosed. Contaminated mixed waste fluid is separated into water and hydrocarbons which are then used in the thermal decontamination o... | 09/29/1998 |
| 5773061 | Method and apparatus for making agglomerated product An agglomerated powder is produced in an apparatus where the product is agglomerated in two stages. First, a liquid concentrated feed of the product is atomized by an atomizer in a drying chamber. The fine particles are transferred to a separating device ... | 06/30/1998 |
| 5638609 | Process and apparatus for drying and heating The present invention is directed to drying and heating processes and to an apparatus incorporating a pulse combustion device that can be used in a drying system or in a heating system. In general, the apparatus includes a pulse combustion device for the ... | 06/17/1997 |
| 5611935 | Method and device for treating sludge A method for treating sludge by dewatering to form thick sludge and drying to form dry sludge includes the steps of mechanically predewatering thick sludge to produce predewatered thick sludge and mixing the predewatered thick sludge with non-cooled dry s... | 03/18/1997 |
| 5588222 | Process for recycling combustion gases in a drying system In a process for drying material in a drying system, a first current of heated gas is supplied to a first dryer from a corresponding first combustion chamber. Material to be dried is exposed to the first current in the first dryer. The dried material is s... | 12/31/1996 |
| 5557873 | Method of treating sludge containing fibrous material A method of converting industrial, domestic or other sludge, into a pelletized or granular fertilizer, as well as a sludge converter for practicing the method. The sludge is dewatered to form sludge cake solids which are dried in a dryer, and then sorted ... | 09/24/1996 |
| 5535528 | Agglomerating waste sludge and yard waste A process and apparatus which mixes yard waste and municipal waste sludge to form fuel, fertilizer, or animal feed supplement. The yard waste and sludge are thoroughly mixed in a mixer and fed into a thermal dryer. A portion of the dried material is then ... | 07/16/1996 |
| 5428906 | Sludge treatment system A method of converting industrial, domestic or other sludge, into a pelletized or granular fertilizer, as well as a sludge converter for practicing the method. The sludge is dewatered to form sludge cake solids which are dried in a dryer, and then sorted ... | 07/04/1995 |
| 5419267 | Method and apparatus for drying the fuel of a fluidizied-bed boiler The present publication discloses a method and an apparatus for drying the fuel used for firing a fluidized-bed boiler (1). The hot, inert solids of the fluidized bed are circulated by a regulated rate from the furnace (2) to a simple dryer (11) incorpora... | 05/30/1995 |
| 5337496 | Sludge treatment process A system is described for producing small uniform pellets of predetermined size which are substantially free of fines from mechanically dewatered sewage sludge. The system includes a process and apparatus for mixing the dewatered sludge with previously dr... | 08/16/1994 |
| 4860671 | Odor control for a sludge treatment process A system is described for producing small uniform pellets of predetermined size which are substantially free of fines from mechanically dewatered sewage sludge and a means for controlling odor from the production of said pellets. The system includes a pro... | 08/29/1989 |
| 4761893 | Sludge treatment process A system is described for producing small uniform pellets of predetermined size which are substantially free of fines from mechanically dewatered sewage sludge. The system includes a process and apparatus for mixing the dewatered sludge with previously dr... | 08/09/1988 |
| 4040190 | Method and apparatus for drying manure or mud or the like Method and apparatus for drying mud or manure, which product, after passage through a mechanical dewatering device, is conducted through a thermal drying apparatus, whereby part of the product passed through the thermal drying apparatus is recycled by ret... | 08/09/1977 |
