Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
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 |
| 7431902 | Separation of ammonia from sulfur compounds A method for separating ammonia and sulfides from a sour water stream is disclosed. The stripping of a sour water stream where it is stripped to create a sour water stripper overhead gas and then contacted with an alkali hydroxide in order to separate ammonia and ma... | 10/07/2008 |
| 7229602 | Method of preparing metal chalcogenide particles A method of preparing metal chalcogenide particles. The method comprising the step of reacting an amine and metal complex precursors. The metal complex precursors comprising a chalcogenide and an electrophilic group. The reaction forming metal chalcogenide particles... | 06/12/2007 |
| 7101520 | High luminescence phosphor particles and methods for producing the particles Methods for producing metal/metalloid oxide particles comprise rare earth metals herein include reacting a reactant stream in a gas flow. The reactant stream includes a rare earth metal precursor and an oxygen source. A collection of particles comprising metal/metal... | 09/05/2006 |
| 7011806 | Spray drying process for producing anhydrous alkali sulfide A process and a device for producing anhydrous alkali sulfide, wherein an alkali sulfide solution, alkali sulfide suspension, alkali sulfide dispersion or alkali water of crystallization melt is dried by spray drying with inert drying gas loaded with water vapor. | 03/14/2006 |
| 6875414 | Polysulfide measurement methods using colormetric techniques Methods of converting a sulfide in a composition to polysulfide are described, one method comprising the steps of exposing the composition to conditions and for a time sufficient to cause conversion of at least a portion of the sulfide, to polysulfide to form a modi... | 04/05/2005 |
| 6582675 | Method for the preparation of anhydrous sodium sulfide A method of preparing anhydrous sodium sulfide having an Na2 S content of at least 98 wt %, by drying hydrous sodium sulfide having a water content of 35 to 45%, provided as a solid or in liquefied form, by intensively kneading and mixing hydra... | 06/24/2003 |
| 6555078 | Method of preparing lithium salts The present invention provides an inexpensive process for the preparation of lithium salts of formula LiX having a desired or required level of purity using lithium chloride and lithium sulfate. In the process of the invention, a lithium salt selected fro... | 04/29/2003 |
| 6503474 | Process for the preparation of anhydrous sodium sulfide A process is disclosed for the preparation of anhydrous sodium sulfide by heating sodium sulfide having a water content of from 38 to 40% in a contact drier in vacuo, the temperature of the solid to be dried being increased from approximately 20° C. at t... | 01/07/2003 |
| 6372156 | Methods of chemically converting first materials to second materials utilizing hybrid-plasma systems In one aspect, the invention encompasses a method of chemically converting a first material to a second material. A first plasma and a second plasma are formed, and the first plasma is in fluid communication with the second plasma. The second plasma compr... | 04/16/2002 |
| 6337062 | Method for the production of anhydrous alkali metal sulfide and alkali metal sulfide solution A method for producing an anhydrous alkali metal sulfide, which entails a) bubbling a solution of an alkali metal hydroxide in an aprotic organic solvent, such as N-alkylcaprolactam or N-alkylpyrrolidone, with hydrogen sulfide gas at a temperature between... | 01/08/2002 |
| 6217843 | Method for preparation of metal intercalated fullerene-like metal chalcogenides A method for the preparation of nanoparticles of metal oxides containing inserted metal particles and to metal-intercalated and/or metal-encaged "inorganic fullerene-like" (hereinafter IF) structures of metal chalcogenides obtained therefrom is provided, ... | 04/17/2001 |
| 6066752 | Process for producing sulfur-containing organosilicon compounds and synthetic intermediates thereof An object of the present invention is to provide a method of obtaining high-purity sulfur-containing organosilicon compounds having polysulfide structure in a simple manner without treatment at high temperatures or under vacuum. According to the present i... | 05/23/2000 |
| 5972165 | Method of producing oxidized white liquor using dregs containing carbon particles White liquor produced from black liquor is partially or completed oxidized. The white liquor contains dregs that are utilized as a carbon based catalyst. Dregs are produced by separating the dregs from green liquor an intermediate product between the blac... | 10/26/1999 |
| 5958281 | Lithium ion-conductive solid electrolyte and method for producing the same A method for producing an electrochemically advantageous lithium ion-conductive solid electrolyte with high ionic conductivity, low electronic conduction and electrochemical stability is disclosed. The method comprises the steps of synthesizing lithium su... | 09/28/1999 |
| 5879830 | Process for regenerating sodium sulphide from the sodium sulphate which forms in treating lead paste from exhausted batteries A process is disclosed for treating lead paste from exhausted batteries. Calcium sulfite and calcium thiosulfite are formed by the reaction: 3Ca(OH)2 +4S°.fwdarw.2CaS+CaS2 O3 +3H2 O(1). The CaS and CaS2 O... | 03/09/1999 |
| 5833718 | Sodium potassium sulfide composition and method for preparing same Describes an aqueous composition of sodium potassium sulfide and methods for preparing this inter-alkali metal sulfide. One method described is the addition of sodium hydrosulfide to potassium hydroxide in an aqueous reaction medium. The aqueous sodium po... | 11/10/1998 |
| 5508012 | Methods for recovering sodium sulfides from a sulfur scavenging reaction A method is provided for the regeneration of a scavenging compound that has been reacted with hydrogen sulfide. Regeneration is accomplished through the use of calcium oxides and sodium hydroxide. Sodium sulfide is recovered from the regeneration process ... | 04/16/1996 |
| 5455206 | Corrosion resistant ceramic materials Ceramic materials which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200°-550° C. or organic salt (including SO2 and SO2 | 10/03/1995 |
| 5328677 | Recovery of sulfides from tannery waste liquor An apparatus and process for the removal and recovery of sulfides from tannery waste water or liquor. The apparatus comprises a closed vessel, the sulfide-bearing liquor is introduced into a first or acidulation zone of the vessel and mixed with acid to d... | 07/12/1994 |
| 5205908 | Purification of process gas from a partial combustion of black liquor The present invention relates to a process for the separation of sulphur and sodium compounds from a hot process gas generated during gasification of spent liquor from the kraft pulping industry, through contact with hydrogen sulphide ion and hydroxide io... | 04/27/1993 |
| 5173088 | Process for preparing crystals of anhydrous sodium sulfide Disclosed is a process for preparing crystals of anhydrous sodium sulfide, the process being characterized in that the process comprises the steps of heating crystals of polyhydrate of sodium sulfide under a pressure of about 500 torr or less at a tempera... | 12/22/1992 |
| 5128064 | Cadmium sulfide membranes A method is described for the creation of novel q-effect cadmium sulfide membranes. The membranes are made by first creating a dilute cadmium sulfide colloid in aqueous suspension and then removing the water and excess salts therefrom. The cadmium sulfide... | 07/07/1992 |
| 5080881 | Method of preparing lower sodium polysulfides from higher sodium polysulfides and sodium Methods for the preparation of lower sodium polysulfides such as sodium disulfide from higher sodium polysulfides and sodium. To this end, either molten sodium polysulfide placed in a receiver is reacted with sodium in a stoichiometric ratio corresponding... | 01/14/1992 |
| 5075098 | Method of preparing Na2 S (II) A method of preparing sodium monosulfide by means of reacting a sodium polysulfide with sodium under protective gas, the sodium polysulfide is placed in a first stage in a finely distributed, solid state in a receiver, preheated to temperatures of 100°-1... | 12/24/1991 |
| 5071632 | Process for preparing crystals of anhydrous sodium sulfide Disclosed is a process for preparing crystals of anhydrous sodium sulfide, the process being characterized in that the process comprises the steps of heating a water-containing non-crystalline sodium sulfide at a temperature of about 30° to about 89° C.... | 12/10/1991 |
| 5039506 | Method of preparing NA2S (I) In a method of preparing sodium monosulfide by means of reacting sodium and sulfur under protective gas, the entire sodium determined for reaction is placed in a receiver in a first stage, preheated to temperatures of 100°-150° C., sulfur is gradually a... | 08/13/1991 |
| 5039505 | Method of preparing Na2 S (III) A method of preparing sodium monosulfide by means of reacting sodium and sulfur under protective gas, wherein sodium monosulfide is placed in a first stage in a receiver in a finely distributed, solid state, the initial material is preheated to 120°-150Â... | 08/13/1991 |
| 4740473 | Sodium sulfide analyzer The invention provides a method and apparatus for measuring the sodium sulfide content of liquid industrial process streams. According to this method, a sample of the liquid is passed through a heated filter to remove solids and reduce viscosity and a por... | 04/26/1988 |
| 4557914 | Process for producing substances optically transparent to infrared rays In order to obtain substances that are optically transparent in the infrared range, usable in the manufacture of optical fibers or radiation emitters, a metal or metalloid chalcogenide other than an oxide is produced by a double-substitution reaction betw... | 12/10/1985 |
| 4523043 | Reagent and method for decomposing organosulfur compounds Organosulfur compounds containing a C-S bond are decomposed by reaction with a reagent made from an alkali metal, a polyglycol or a monoalkyl ether thereof and oxygen, which effects decomposition by cleavage of the C-S bond.... | 06/11/1985 |
| 4441923 | Integrated process using non-stoichiometric sulfides or oxides of potassium for making less active metals and hydrocarbons Disclosed is a combinative integrated chemical process using inorganic reactants and yielding, if desired, organic products. The process involves first the production of elemental potassium by the thermal or thermal-reduced pressure decomposition of potas... | 04/10/1984 |
| 4439411 | Production of sodium hydrosulfide Sodium hydrosulfide is continuously produced from the reaction of hydrogen sulfide and with sodium sulfide by continuously introducing an aqueous sodium sulfide solution into an unvented reaction chamber, which may be a tower or tank, while maintaining a ... | 03/27/1984 |
| 4395385 | Process for removing hydrogen sulfide from sour gas streams A process for removing hydrogen sulfide from a sour gas stream wherein the sour gas stream is contacted with an aqueous alkali metal hydroxide solution containing a stoichiometric excess of the alkali metal hydroxide to provide a sweet gas substantially f... | 07/26/1983 |
| 4243645 | All dry solid potassium seed regeneration system for magnetohydrodynamic power generation plant In a magnetohydrodynamic power plant where calcium carbonate seed is used to increase conductivity and scavenge sulfur, forming potassium sulfate, an improved process is disclosed for converting the potassium sulfate back into potassium carbonate for reus... | 01/06/1981 |
| 4225571 | Electrowinning of metal from sulphide ores and recovery of water soluble sulphides Process and apparatus for the electrowinning of metals from sulphide ores wherein a sulphide ore is initially leached in a water soluble sulphide solution, alkali is then added, and the resulting solution is electrolyzed so as to deposit metal at the cath... | 09/30/1980 |
| 4210526 | Desulfurizing fossil fuels Hydrated alkali metal sulfides used to remove sulfur from fossil fuels to form alkali metal polysulfides which are recycled to alkali metal sulfides and elemental sulfur by thermal or thermal reduced pressure decomposition of the alkali metal polysulfides... | 07/01/1980 |
| 4198385 | Reduction of sodium sulfate to sodium sulfide Methods and apparatus pertaining to reduction of sodium sulfate to sodium sulfide include the feeding of sodium sulfate into a combustion chamber in which the sodium sulfate is exposed to a reducing atmosphere while at the same time being exposed also to ... | 04/15/1980 |
| 4147611 | Regeneration of alkali metal sulfides from alkali metal hydrosulfides Alkali metal sulfides are regenerated from alkali metal hydrosulfides which are produced as a result of the hydroconversion of heavy carbonaceous feeds. The regeneration is effected by treating the spent solids from a hydroconversion reactor, said solids ... | 04/03/1979 |
| 4147612 | Regeneration of alkali metal sulfides from alkali metal hydrosulfides Alkali metal sulfides are regenerated from alkali metal hydrosulfides which are produced as a result of the hydroconversion of heavy carbonaceous feeds. The regeneration is effected by contacting the alkali metal hydrosulfide with a metal oxide at elevate... | 04/03/1979 |
| 4126666 | Process for producing high purity lithium sulfide Lithium sulfide in the form of a finely divided, free-flowing powder of high purity is produced by reacting lithium carbonate powder in which the diameter of the particles is in the range of 1 to 10 microns with hydrogen sulfide at 500° to 700° C. Initi... | 11/21/1978 |
