Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 4627877 | Method and apparatus for continuously producing a cement clinker A cement clinker is produced by utilizing a combustible waste material as a fuel for preheating or calcining a cement material, by using an apparatus comprising a cement material feeder, a preheater or calcinator, a rotary kiln, cooler and means for flowi... | 12/09/1986 |
| 4542109 | Silicon nitride-cordierite ceramic article, and process of manufacture thereof A silicon nitride-cordierite article, and process for fabricating is described. The silicon nitride imparts a high mechanical strength, and the cordierite contributes to a lower thermal conductivity making the composition especially useful for internal pa... | 09/17/1985 |
| 4540675 | Carbon-containing refractories with superior erosion and oxidation resistance An elemental carbon-containing refractory composition having superior erosion and oxidation resistance due to the addition of prescribed amounts of boron carbide.... | 09/10/1985 |
| 4530723 | Encapsulation of ion exchange resins Disclosed is a method for rapidly forming a solid monolith of an aqueous mixture of an ion exchange resin and boric acid. A fouling agent and sufficient basic accelerator to neutralize the mixture are added. Cement is then added which hardens in a few hou... | 07/23/1985 |
| 4528037 | Method of manufacturing heat insulating aggregates or pellets and product thus obtained A process for manufacturing stabilized elementary particles of lignocellulose material includes, in sequence, the following operations: mechanically reducing with a cutter, crushing with a hammer mill, grading, subjecting to heat treatment by passage in a... | 07/09/1985 |
| 4515635 | Hydrolytically stable polymers for use in oil field cementing methods and compositions Cementing compositions and methods of using such compositions in oil, gas and water well cementing operations to reduce fluid loss from the composition to the formation are disclosed. Such compositions incorporate certain copolymers of N, N dimethylacryla... | 05/07/1985 |
| 4514228 | Composition for making impermeable walls and other underground structures A composition for making impermeable walls and other underground structures comprising water, a cement, a silica compound in a dispersed form, and an activating agent selected from the group consisting of an alkaline base and an alkaline salt of a weak ac... | 04/30/1985 |
| 4509985 | Early high-strength mineral polymer An early high-strength mineral polymer composition is formed of a polysialatesiloxo material obtained by adding a reactant mixture consisting of alumino-silicate oxide (Si2 O5,Al2 O2) with the aluminum cation in... | 04/09/1985 |
| 4510254 | Method of treating zeolite ores to remove discoloring impurities and improve its brightness and resulting finely ground zeolite A method of treating zeolites to remove therefrom discoloring impurities and improve the brightness thereof, comprising the steps of mixing a pulverized sedimentary zeolite ore with a dispersant and water to form a dispersed aqueous zeolite slurry, degrit... | 04/09/1985 |
| 4509986 | Composition obtained by mixing fly ash, oxisludge and phosphogypsum A composition obtained by mixing fly ash, calciumsulphate hemihydrate and oxisludge, a product caught from gases emanating from converters during steel production. Oxisludge containing substantial amounts of iron is used in an amount comprised between 0,2... | 04/09/1985 |
| 4508573 | Co-production of cementitious products A method and apparatus for thermally reacting one or more inorganic materials, the method involves the step of maintaining a flame in a combustion chamber at a predetermined reaction temperature by supplying a sufficient quantity of a hydrocarbon fuel and... | 04/02/1985 |
| 4508574 | Process for improving the fluidity and conveyability of moist calcium sulfate precipitates A process for improving the fluidity and conveyability properties of moist calcium sulfate precipitates, having a free water content of more than about 5% by weight, which entails mixing quicklime (CaO), burnt dolomite (CaO+MgO) or a mixture thereof, in f... | 04/02/1985 |
| 4507153 | Method and apparatus for the heat treatment of a fine grained product A method and apparatus for burning fine grained products, such as in the manufacture of cement clinker from raw cement meal wherein preheated, calcined meal is heated in a separate heating assembly to a temperature from approximately 900° C. to approxima... | 03/26/1985 |
| 4505751 | Process for utilizing a silicate/silica cement in oil field applications A process for formulating and applying a silicate/silica cement composition to the treatment of a wellbore comprising the steps of mixing an appropriate silica compound with an aqueous water-soluble silicate solution and injecting the mixture into the wel... | 03/19/1985 |
| 4506023 | Mouldable refractory composition based on partially stabilized zirconia and on an aluminous hydraulic binder, its preparation and mouldings manufactured from this composition A refractory composition for use in the manufacture of pipes for casting steel, the composition consisting essentially of: (a) from 96 to 98% by weight of zirconia which is partially stabilized by CaO, MgO or Y2 O3, at least 90% of w... | 03/19/1985 |
| 4505752 | Fast-setting cements from solid phosphorus pentoxide containing materials A dry blend capable of forming a fast-setting cement when reacted with an aqueous component. The blend comprises: a solid phosphorus pentoxide (P2 O5) containing component; a solid component comprising a magnesium containing compound... | 03/19/1985 |
| 4506022 | Slide Gates High alumina slide gate compositions comprising aluminous grain, carbonaceous material, high purity alumina, silicon metal and resin.... | 03/19/1985 |
| 4506025 | Silica castables A castable silica refractory consisting essentially of 58-78 by weight percent amorphous silica selected from the group consisting of vitreous and fused silica or a combination thereof; 10-30 by weight percent quartzite; 4-10 by weight percent volatilized... | 03/19/1985 |
| 4505753 | Cementitious composite material A cementitious composite material exhibiting an exceptional combination of high tensile, flexural and compressive strengths as compared with generally accepted values for Class H cements is produced from a mixture having a low pH and containing a tobermor... | 03/19/1985 |
| 4504316 | Aluminum salts of aromatic sulfonic acids formaldehyde condensates Aluminum salts of aromatic sulfonic acid formaldehyde condensates are useful cement additives and leather retanning agents. These salts prepared by reaction of freshly precipitated aluminum hydroxide with aromatic sulfonic acid formaldehyde condensate are... | 03/12/1985 |
| 4504315 | Liquid accelerator for the setting of concrete mixtures The present invention relates to liquid accelerators for the setting of concrete mixtures. These accelerators have a long shelf life even in higher concentrations than the liquid accelerators known heretofore and, within the defined concentrations, produc... | 03/12/1985 |
| 4504591 | Refractory material A refractory mix comprising an acid stabilized aqueous zirconia sol and an active refractory material in an amount effective to gel said sol and articles prepared therefrom.... | 03/12/1985 |
| 4504319 | Method and apparatus for burning cement clinker A method and apparatus for burning cement clinker from differing mineral base materials. One of the base materials has a relatively high proportion of components which form melt phases at a predetermined temperature and another base material has a relativ... | 03/12/1985 |
| 4504318 | Process for producing plastic concrete A light-weight high-strength plastic concrete is produced by forming a water-in-oil type inverted emulsion from a cement slurry, vinyl monomers, and a polyalkylene glycol derivative having terminal carboxyl groups, said polyalkylene glycol being an additi... | 03/12/1985 |
| 4504321 | Process for treating and stabilizing chromium ore waste The solids content of toxic waste chromium ore waste and of certain types of mud or sludge dredged from salty or brackish water are combined together and stabilized in a hardened state by adding to the settled volume of the mixed materials about 5% to abo... | 03/12/1985 |
| 4504317 | Encapsulation of boric acid slurries Disclosed is a process for encapsulating in cement a boric acid slurry which is at least about 30% boric acid. To the sulrry is added about 3.5 to about 4.5% dispersing agent, about 0.02 to about 0.03 ml/g of a cement retarder, up to about 0.4% of a harde... | 03/12/1985 |
| 4503109 | Bonded aggregate structures and production thereof Bonded aggregate brooder radiant heat panels and, processes for their production, are provided. The panels are made using a workable quick-setting non-toxic non-ammoniacal mixture of magnesium oxide, aluminum oxide, aggregate and mono aluminum phosphate a... | 03/05/1985 |
| 4502887 | Underwater concreting cement composition An underwater concreting cement composition comprising a base prepared by adding (a) 0.2 to 2.0 parts by weight of hydroxyethylcellulose and (b) 0.01 to 0.2 part by weight of high-molecular weight polyethylene oxide and/or 0.2 to 4.0 parts by weight of ca... | 03/05/1985 |
| 4501617 | Tile mortars Improvements in ceramic wall and floor tile mortars are effected by incorporating therein at least one hydroxypropylhydroxyethylcellulose having specified substitution levels as a water retention aid or thickener.... | 02/26/1985 |
| 4500643 | Shaped refractory metal boride articles and method of making them A shaped refractory article of titanium diboride or other metal has a microstructure with a weight average grain diameter of from 0.5 to 5 microns and substantially no grains larger than 10 microns diameter, from 10% to 45% by volume being made up of inte... | 02/19/1985 |
| 4500356 | Methylenephosphonic acid derivatives of bis(aminoalkyl)piperazines as cement set retarding agents Methylenephosphonic acid derivatives of bis(aminoalkyl)piperazine are employed as cement set retarding additives. The compounds must have at least one of the amine hydrogens phosphonomethylated.... | 02/19/1985 |
| 4498930 | Method and device for regulating the burning process of a cement burning system This invention relates to a method and device for regulating a cement burning system to make it more efficient. A product stream, in keeping with customary practice, passes successively through a pre-heating zone, a calcining zone, a sintering zone, and a... | 02/12/1985 |
| 4496659 | Sulfur cement-aggregate compositions and methods for preparing Sulfur cement-aggregate compositions comprising a sulfur cement and an aggregate containing an expansive clay and processes for preparing such compositions. The processes, and resulting compositions, are characterized by the incorporation of a carboxylic ... | 01/29/1985 |
| 4496396 | Method and apparatus for burning fine grained material, particularly raw cement meal A method and apparatus for burning fine grained products, such as raw cement meal, wherein the product is preheated in a preheating stage, calcined in a calcining stage, and is burned into clinker in a clinker stage followed by cooling in a cooling stage.... | 01/29/1985 |
| 4495302 | Ceramics compact A fired ceramics compact for use in casting of a super alloy material consisting of a solid solution of BaO and Al2 O3 wherein the composition of the solid solution lies on or between a first and a second eutectic composition, the fi... | 01/22/1985 |
| 4494990 | Cementitious composition An improved cementitious composition is the subject of the present invention. The composition comprises 25-60 weight percent cement component. The cement component is 3 to 50 weight per pozzolan. The pozzolan should have a sulfate reactivity factor of no ... | 01/22/1985 |
| 4491480 | Grinding aid and mineral mixture containing it Grinding aid for grinding pretreated or untreated minerals and mixtures of minerals, such as cement, characterized in that it consists of 1,1-dimethylol propane. Distillation first runnings from trimethylol propane production containing 1,1-dimethylol pro... | 01/01/1985 |
| 4490178 | Granulated material Granulated material, at least comprising a filler, being bound by an inorganic binder, which filler consists at least partially of a substance possessing latent hydraulic properties, in the form of a substance possessing pozzolanic properties, preferably ... | 12/25/1984 |
| 4488909 | Non-expansive, rapid setting cement An ettringite-producing hydraulic cement especially adapted to the high speed production of carbon dioxide resistant cement board produces essentially all of its potential ettringite within about 20 minutes after it is mixed with water. The cement is non-... | 12/18/1984 |
| 4489168 | Composition of matter for use in manufacturing non-magnetic parts of a magnetic head and method of manufacturing the composition A nonmagnetic material for use in a magnetic head which has a composition which, by weight, is between 10 and 30% calcium oxide and between 70 and 90% titanium dioxide and up to 2% zirconium dioxide. The invention also includes a method of manufacturing a... | 12/18/1984 |
