Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7261208 | Method and installation for drying sludge Apparatus and method for drying sludge, in particular sewage sludge, by creating a granulate from the dried product. A mixture of a carrier material consisting of recycled sludge which has already been dried and liquid sludge is fed to a dryer 6. The dried pr... | 08/28/2007 |
| 7128780 | Process for producing building materials from raw paint sludge A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding... | 10/31/2006 |
| 6960372 | Coating film drying method, coating film forming method, and coating film forming apparatus The present invention uniformly dries, in a clean room in which down flow is constituted, a coated film formed on a surface of a substrate held in a state that the coated surface faces down. In a coating apparatus including an absorption board holding a substrate in... | 11/01/2005 |
| 6953654 | Process and apparatus for removing a contaminant from a substrate Contaminant removal from a substrate can be performed using a supercritical fluid. An apparatus can be configured to operate at conditions that take advantage of higher solubility of a contaminant in its supercritical state compared to its liquid state. The substrat... | 10/11/2005 |
| 6922911 | Clothe drying apparatus A garment drying apparatus (200) is disclosed having a frame (201), a porous net 204, slip proof pads (205,206), an adjustable width garment hanger (202) and a hook (203) to support said adjustable width garment hanger; the ... | 08/02/2005 |
| 6901684 | Method for producing cerium-based abrasive and cerium-based abrasive produced thereby This invention is a method for producing a cerium-based abrasive which includes: a step of grinding raw material for the cerium-based abrasive; a step of roasting the ground raw material; and a step of subjecting the roasted raw material to wet processing, the metho... | 06/07/2005 |
| 6397494 | Process for drying melamine The invention relates to a process for drying melamine wet cake to produce a dry melamine powder showing improved bulk properties, the drying being effected with a contact dryer. In particular the invention relates to a process for drying melamine wet cak... | 06/04/2002 |
| 6357141 | Evaporator with hot air bath and method of use An evaporating system for evaporating solvents from chemical samples held in supply plates, which accelerate evaporation by warming the samples in a hot air bath. The system includes adapters to allow the use of supply plates of varying heights, such as e... | 03/19/2002 |
| 6006440 | Process and apparatus for drying a slurry The invention is directed to a process and apparatus for drying a slurry, particularly a sludge, such as sewage sludge, in which a sludge mixture of recycled dried sludge and wet sludge is fed to a drier. The quantity of wet sludge or recycled dried sludg... | 12/28/1999 |
| 5915815 | Method and apparatus for drying organic material An apparatus method of separating organic mass into its component parts in environmentally contained hygienic conditions at high thermal efficiency. One example is extraction of aromatic oils from citrus fruit. Organic materials derive from plants which c... | 06/29/1999 |
| 5875564 | Method and apparatus for drying wet porous bodies under subcritical temperatures and pressures An improved apparatus, and related method of operation, is described for rapidly drying large monoliths of glass, ceramic and/or composite material, under subcritical conditions, while minimizing the risk of cracking the monolith during the drying process... | 03/02/1999 |
| 5765293 | Method for processing paint sludge A process for treating paint sludge in which previously cured paint sludge powder is used as a diluent and mixed with wet paint sludge. The paint powder/sludge mixture is agitated and heated to cure the paint sludge. Processing can occur either continuous... | 06/16/1998 |
| 5736007 | Method of liquor removal from particulate solids Liquor removal from particulate solids such as wet wood pulp is achieved by applying a pneumatic or vapor pressure force through a pad of the wood pulp to compress the solids and to expel liquor from the solids. If air is used as a displacing medium, no w... | 04/07/1998 |
| 5675909 | Microwave-assisted separations using volatiles The generation of volatiles from liquid or solid materials is enhanced and accelerated by exposure to microwave radiation. Normally the energy transfer is effected preferentially toward the liquid or solid materials over the generated gaseous volatiles. S... | 10/14/1997 |
| 5635046 | Method for drying polyacrylamide gel after electrophoresis A polyacrylamide gel which has undergone electrophoresis is dried in the presence of pressure applied via a semipermeable film placed on the gel. Before applying the semipermeable film onto the gel, solution components contained in the gel is replaced by ... | 06/03/1997 |
| 5440822 | Method and apparatus for drying electrophoresis gels A method and apparatus for drying electrophoresis gels. The apparatus includes a base unit and gel drying frame assembly. The base unit serves as a both a support for the frame when placing the gel in the frame and as a receptacle for excess liquid used t... | 08/15/1995 |
| 5117564 | Continuous vacuum treatment system An improved vacuum treatment system includes containers for accommodating articles to be treated, a tunnel-like casing in which a plurality of the casings can move contiguously, a driving device for making the containers move in the casing, a plurality of... | 06/02/1992 |
| 4676070 | Apparatus and method for cryopreparing biological tissue This invention relates to method and apparatus for the cryopreparation of biological tissue samples for ultrastructural analysis. The use of the apparatus comprises vitrifying a biological tissue sample under cryogenic temperature conditions and ultra low... | 06/30/1987 |
| 4609102 | Plastic film bag lyophilization system A plastic film bottom tray is held in shape by a rigid bottom rim. A plastic film top is held in shape by a rigid top rim above the tray. Substance to be lyophilized is frozen in the tray. The assembly is lyophilized in a vacuum chamber. Apertures formed ... | 09/02/1986 |
| 4510169 | Method and apparatus for cryopreparing biological tissue for ultrastructural analysis This invention relates to a method for the cryopreparation of biological tissue samples for ultrastructural analysis. The process comprises vitrifying a biological tissue sample under severely rapid conditions and then depressurized. The depressurized, vi... | 04/09/1985 |
| 4323478 | Novel particulate compositions An improved method and apparatus is disclosed for producing frozen particulate compositions from liquid feedstock. A continuous stream of liquid feedstock is passed through an orifice and into a liquid freezant without the orifice contacting the freezant.... | 04/06/1982 |
| 4275511 | Evaporator/sublimator flask apparatus A vacuum evaporator/sublimator flask apparatus comprises an elastomer cap and a cylindrical glass body. The glass body is a straight-sided cylinder, preferably made of borosilicate glass tubing of sufficient wall thickness to prevent implosion when subjec... | 06/30/1981 |
| 4168204 | Stable freeze-dried Lowenstein-Jensen medium and a method for its preparation A storage stable Lowenstein-Jensen medium is prepared by freeze drying the liquid medium to provide a powder having a moisture content of less than 8% by weight. The dried powder is stable at ambient temperature for at least one year and may be easily rec... | 09/18/1979 |
