Bizarre Patents
A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7922872 | Distillation apparatus A distillation apparatus of the present invention includes a distillation column group in which a plurality of distillation columns including a condenser and a reboiler is connected in the form of a cascade; a gas-feeding line which feeds gas from the distillation c... | 04/12/2011 |
| 7857944 | Method and apparatus for esterification The method and apparatus for improving the esterification procedure, in particular for improving the esterification procedure to obtain an ester of low carbon number such as the ethyl acetate and the isopropyl acetate, are provided. By applying the provided method a... | 12/28/2010 |
| 7699961 | Apparatus for concentrating water-soluble organic material A water-soluble organic material condensation apparatus equipped with a distillation column for distilling an aqueous solution of a water-soluble organic material, wherein a vapor generated at the top of the distillation column or a condensed liquid from the vapor i... | 04/20/2010 |
| 7413634 | Distillation system A multiple effect distillation chamber includes a plurality of separate distilling chambers and a drain chamber at a downstream end of the distilling chambers. The drain chamber functions to create a vacuum to draw volatile gases and impurities collected at the end ... | 08/19/2008 |
| 7302812 | Process for production of isotopes A process for producing an isotopically enriched compound of a desired isotope includes (a) providing a cryogenic reaction zone containing a catalyst adapted to catalyze an isotope exchange reaction at a cryogenic reaction temperature, (b) feeding to the cryogenic r... | 12/04/2007 |
| 7297237 | Method and device for separation and concentration by evaporation of mixture with separation factor of approx. 1 By using a dephlegmator which conducts distillation concurrently with heat exchange within at least one distillation column, or a portion of one distillation column, of a distillation cascade, the quantity of liquid holdup within the distillation apparatus is reduce... | 11/20/2007 |
| 7297236 | Ethanol distillation process A process arrangement for distilling fuel grade ethanol includes a fermentation portion, a distillation portion, a condensation and dehydration portion, a separation and drying portion and an evaporation portion. The fermentation portion produces beer. The distillat... | 11/20/2007 |
| 7276636 | Styrene process with recycle from dehydrogenation zone A styrene process is disclosed that uses a dehydrogenation reactor and a transalkylation reactor and in which a significant portion of the benzene, the inhibitors, or both, recovered from the dehydrogenation reactor passes to the transalkylation reactor. The process... | 10/02/2007 |
| 7208646 | Selective hydrogenation of butadiene A process for the selective hydrogenation of dienes in mixed streams of olefin containing hydrocarbons, such as butadiene in a mixed C4 stream with minimum loss of monoolefins is disclosed wherein the reactor is operated at conditions which induce pulse f... | 04/24/2007 |
| 7101463 | Condensation and recovery of oil from pyrolysis gas A system and process for the recovery of oil from the pyrolysis of material containing hydrocarbons such as shredded vehicle tires. The system utilizes a pair of sequentially positioned packed towers to recover at least 95% of the oil contained in the pyrolysis gase... | 09/05/2006 |
| 7094939 | Styrene process with recycle from dehydrogenation zone A styrene process is disclosed that uses a dehydrogenation reactor and a transalkylation reactor and in which a significant portion of the benzene, the inhibitors, or both, recovered from the dehydrogenation reactor passes to the transalkylation reactor. The process... | 08/22/2006 |
| 7087140 | Carbonizing waste processing apparatus A carbonizing waste processing apparatus is operable to rotate and heat a radiant tube for carbonizing waste therein so as to generate granular char and vapors from the waste, transfer waste into an upstream end of the tube, temporarily impede movement of the waste ... | 08/08/2006 |
| 7052656 | Column for carrying out an isotope exchange between a liquid substance and a gaseous substance The column is provided for carrying out an isotope exchange (EM) between a liquid substance (L) and a gaseous substance (G) using a catalytic reaction (EK). In this reaction the isotope exchange between molecules of the vaporized liquid substance (V) and molecules o... | 05/30/2006 |
| 7041860 | Process for the selective hydrogenation of alkynes An improved selective hydrogenation process for removing acetylenic impurities such as vinyl acetylene, ethyl acetylene, propyl acetylene and acetylene in a steam cracked crude butadiene stream by selective hydrogenation is carried out in two steps. In the first ste... | 05/09/2006 |
| 7041199 | Process and device for hydrolytically obtaining a carboxylic acid alcohol from the corresponding carboxylate A process and a device for the catalytic hydrolysis of a carboxylate, e.g., methyl acetate, ethyl acetate, i- or n-propyl acetate, i- or n-butyl acetate, allyl acetate and methyl formate, into the corresponding carboxylic acid and alcohol, by a combination of a pre-... | 05/09/2006 |
| 7001490 | Purification of ammonia by distillation Crude ammonia is separated into a low boiler fraction, a high boiler fraction and an intermediate-boiling pure fraction by continuous fractional distillation in a distillation apparatus configured either as a dividing wall column or as a system of thermally coupled ... | 02/21/2006 |
| 6998026 | Method for producing tertiary C-C-alkyl esters of (meth)acrylic acid A tert-C4–C8-alkyl (meth)acrylate is prepared by reacting (meth)acrylic acid with an olefin of the formula where R1 and R2, which may be i... | 02/14/2006 |
| 6969446 | Method for producing concentrated nitric acid and installation for carrying out a method of this type Process for producing a nitric acid of a concentration from 75 to 99.9% from a more diluted nitric acid, wherein a nitric acid of a concentration of about 45 to 70% is rectified in contact with a liquid extraction medium to prevent the formation of a nitric acid-wat... | 11/29/2005 |
| 6946060 | Purification of N,N-dimethylacetamide A method to purify N,N-dimethylacetamide (DMAc) from an aqueous solution containing acetic acid as a contaminant. Two fractional distillation columns are arranged in a series. The solution containing the contaminant is provided to the first column with a temperature... | 09/20/2005 |
| 6905576 | Method and system for producing silane This invention relates to a continuous process for the preparation of silane by catalytic disproportionation of trichlorosilane in a reactive/distillative reaction zone having a catalyst bed of catalytically active solid. ... | 06/14/2005 |
| 6835287 | Apparatus, method for enrichment of the heavy isotope oxygen and production method for heavy oxygen water An apparatus comprising first to third columns, wherein the outlet of a first column reboiler and the inlet of a second column condenser are connected by a first introduction conduit, and the outlet of a second distillation column reboiler and the inlet of a third c... | 12/28/2004 |
| 6582564 | Distillation apparatus and distillation method A distillation apparatus includes a column body; a partition for dividing the interior of the column body; a first distillation section composed of an enriching section and an exhaust section; a second distillation section composed of an enriching section... | 06/24/2003 |
| 6413378 | Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification An extractive distillation tower 4 supplied with a feedstock containing butadiene and a solvent and for distilling the feedstock to separate and purify the butadiene. The tower 4 includes sensors 32, 34 for detecting concentrations of specific impurities ... | 07/02/2002 |
| 6348136 | Method and apparatus for the purification of vinyl aromatic compounds The present invention is directed to an apparatus and method for the distillation of a readily polymerizable vinyl aromatic compound employing a polymerization inhibitor. The vinyl aromatic compound is subjected to distillation in at least one fractionati... | 02/19/2002 |
| 6284104 | Apparatus and process for hydrogenations An apparatus for conducting reactive distillations comprising a first distillation column, a first primary catalyst bed for carrying out a hydrogenation of unsaturated compounds comprising diolefins. The first primary catalyst bed is positioned in the dis... | 09/04/2001 |
| 6171449 | Cascade reboiling of ethylbenzene/styrene columns Apparatus and process are disclosed for the distillation separation of styrene monomer from ethylbenzene utilizing a split feed to two distillation columns in conjunction with cascade reboiling utilizing thermal energy from the overhead of one column to s... | 01/09/2001 |
| 6159344 | Reaction and distillation device The invention relates to a distillation and reaction device having a reaction section and a distillation-reaction section. The distillation-reaction section has a distillation zone with at least one device for circulation of the effluent from the reaction... | 12/12/2000 |
| 6045661 | Process and apparatus for recovering diluent, monomer, and comonomer from a polymerization reactor effluent A process and apparatus are provided for recovering diluent, unreacted monomer, and unreacted comonomer from a polymerization reactor effluent. The comonomer has a boiling point higher than the boiling point of the monomer and the diluent has a boiling po... | 04/04/2000 |
| 6022453 | Apparatus for the distillation of oil-seed extracts A compact apparatus of the distillation of solvent from a mixture of the solvent with oil seed for the extraction thereof according to the invention, the primary module includes a vapor scrubber forming a vapor contactor, a main evaporator and a first con... | 02/08/2000 |
| 5954924 | Distillation of vinylaromatic monomer Process technology is described making possible substantial improvements in the separation and recovery of highly pure vinyl aromatic monomers, notably styrene. A number of design, construction and operational features are made available for selection and... | 09/21/1999 |
| 5783047 | Heat integrated distillation column A monotube or multitube 2 is coupled to a body shell 1 via tube plates 3a and 3b at both ends, so that a tube interior 4 and a tube exterior 5 of the monotube or multitube 2 are isolated from each other. A difference is made in operating pressure between ... | 07/21/1998 |
| 5723026 | Process for recovering pure benzene and pure toluene from aromatic hydrocarbon products The production of high purity benzene and high purity toluene is obtained by utilizing the initial gas separating column for the treatment of the aromatic containing starting material as a separating column for separating a benzene rich from a toluene ric... | 03/03/1998 |
| 5700519 | Method for producing ultra high purity titanium films A method is provided for depositing ultra high purity of greater than 99.998% titanium films which comprises generating gaseous TiI4 in situ by reacting titanium metal starting material with gaseous iodide in a reaction chamber, purifying the T... | 12/23/1997 |
| 5667643 | Heat exchanger and double distillation column A heat exchanger is provided which is suitable for use as a condenser/reboiler in a double distillation column. The heat exchanger has alternating first and second passages and a reservoir located above the first and second passages for receiving a first ... | 09/16/1997 |
| 5658433 | System for the purification of vitamin E An integral system and method for the separation and purification in a single operation of a heat or oxygen-sensitive liquid feed, such as a plant derived liquid feed mixture of fatty acids, tocopherol compounds and sterols, into a low boiling point purif... | 08/19/1997 |
| 5649433 | Cold evaporator An improved cryogenic liquefied gas container, or a so-called cold evaporator (CE) for containing a plurality of different liquefied gases such as oxygen and nitrogen gases can be installed on a site with a limited surface area and can store the gases at ... | 07/22/1997 |
| 5498317 | Apparatus for treating chemical production plant process condensate An apparatus and method for treating chemical production plant process condensate such that a contaminant-rich stream and a relatively pure aqueous stream is separately recoverable from the condensate, wherein the contaminants are substantially removed fr... | 03/12/1996 |
| 5462643 | Method for reprocessing solvent mixtures containing constituents of low volatility and apparatus suitable therefor Reprocessing mixtures which contain organic solvents and constituents of low volatility and may contain water: includes introducing the mixture into a concentration apparatus of a solvent recovery system, concentrating the mixture in the concentration app... | 10/31/1995 |
| 5457277 | Multiple reboiler system To heat the circulating reboiler streams of multiple distillation columns a fired reboiler is provided for a first column requiring the most heat. A portion of the bottoms from the first column is passed through the tubes of the heater in the fired reboil... | 10/10/1995 |
| 5447607 | Ether recovery Process equipment is provided for separating ether, alcohol and hydrocarbon components from various etherifications of C4 or C5 isoolefins with an alcohol such as methanol or ethanol, and wherein identical process vessels are utilize... | 09/05/1995 |
