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| Number | Title | Issue Date |
| 7427321 | Foamed fireproofing composition and method Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious s... | 09/23/2008 |
| 7138012 | Recycled waste as air entrainment admixtures Use of waste generated as a byproduct of a first manufacturing process as an air entraining admixture (AEA) in a second product. In some instances, the waste materials can be used as an AEA during cement and/or concrete formation, and may also be waste materials pro... | 11/21/2006 |
| 7013178 | Implantable medical device communication system An implantable medical device communication system communicates information between an implantable medical device and at least one slave device by way of a two-wire bus. Slave devices may include remote sensors and other implantable medical devices. The implantable ... | 03/14/2006 |
| 6780230 | Foamed fireproofing composition and method Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious s... | 08/24/2004 |
| 6024791 | Molded bodies of cement type admixed and kneaded material having excellent bending strength and compression strength and a method of manufacturing the same An admixed and kneaded material of a mixture of a hydraulic powder, a potentially hydraulic powder, water, and fine and coarse aggregates, if necessary is molded and hardened. Then the hardened body is heat cured to form silicic acid anions of at least a ... | 02/15/2000 |
| 5972104 | Method and apparatus for producing cement clinker The invention is related to a method and an apparatus for producing cement clinker, in which the cement clinker is first of all burnt in a burning zone and then cooled in a cooling zone, wherein the cooling takes place at least partially by the delivery o... | 10/26/1999 |
| 5897704 | Hardened hydraulic cement, ceramic or coarse concrete aggregate treated with high pressure fluids The properties of cement matrices are improved by one or more of the three processes, which can be performed individually, sequentially, or in any desired combination. In each instance a supercritical fluid is or includes a solvent for one of two (or more... | 04/27/1999 |
| 5792384 | Concrete masons' hand rinse A buffer solution comprising one or more metal salts, preferably monobasic potassium phosphate and/or monosodium phosphate, dissolved in water creates a rinse having a pH near that of human skin. The buffer solution in various concentrations and compositi... | 08/11/1998 |
| 5650562 | Cement treated with high-pressure CO2 Cured cement matrices are exposed to dense-phase or supercritical CO2 which enters the matrix through passages therein to neutralize the natural alkalinity of the cement so that alkali-intolerant materials can be incorporated in the cement. The... | 07/22/1997 |
| 5560774 | Process for accelerating the setting and hardening of material which contains a hydraulic binder, setting and hardening accelerator and use of a mixture for accelerating the setting and hardening In a process for accelerating the setting and hardening of a material which contains a hydraulic binder or which consists of a hydraulic binder there is used a setting accelerator mixture which is free of alkali metals and free of chlorides. Said setting ... | 10/01/1996 |
| 5518540 | Cement treated with high-pressure CO2 Cured cement matrices are exposed to dense-phase or supercritical CO2 which enters the matrix through passages therein to neutralize the natural alkalinity of the cement so that alkali-intolerant materials can be incorporated in the cement. The... | 05/21/1996 |
| 5389144 | Admixture for spray concrete and mortar and a method for the manufacture of spray concrete and mortar using this admixture Admixtures for spray concrete or mortar which contain silicic acid sol or consist of it, are used for the processing of spray concrete or mortar according to the dry or the wet method. Said admixtures lead to a clear reduction of dust formation and of reb... | 02/14/1995 |
| 5240608 | Apparatus for waste free dredging of waterways and the fabrication of building materials This invention relates generally to dredging under harbors and waterways and fabricating building materials and more particularly to an apparatus for dredging that produces no waste and uses the dredged material for useful building products. Furthermore, ... | 08/31/1993 |
| 4517020 | Apparatus for rapid burning of thermally pretreated fine grained product and method An apparatus for rapid burning of thermally pretreated, at least partially calcined fine grained product to produce cememt clinker which includes a thermal reactor having a firing chamber and means for introducing the product to be treated in concurrent f... | 05/14/1985 |
| 4440578 | Method and apparatus for processing raw meal having a high alkali chloride and/or sulfate content The method is used in processing raw meal such as cement raw meal, powdered limestone, alumina hydrate or the like including those having relatively high alkali chloride and/or sulfate content up to 2% Cl and/or 2.5% SO3 and includes the steps ... | 04/03/1984 |
| 4392890 | Cement clinker production Cement clinker is produced from cold, dry, finely divided raw material by causing hot flue gases to flow in a first direction out of a rotary kiln and suspending a major portion of the finely divided raw material in the hot flue gases until the raw materi... | 07/12/1983 |
| 4388117 | Process and apparatus for producing portland and other hydraulic cements A hydraulic cement, such as portland cement, is produced by filling a furnace shell with the desired cement in a powdered condition. By the application of intense heat to the filling a skull is developed that lines an upwardly opening cavity. The heat, wh... | 06/14/1983 |
| 4309391 | Lump process alpha gypsum An improved "lump" process for producing alpha gypsum, calcium sulfate hemihydrate, from natural gypsum rock of the type wherein lumps of gypsum rock particles (a minimum of about 1/2 inch or 1.3 cm. in size) are calcined to low water-demand alpha hemihyd... | 01/05/1982 |
| 4251280 | Process for handling and utilizing system gas in a pyro-processing system In a mixing zone of a mixing vessel, comminuted lime is fed into emission gas and carried out of the vessel with the gas to a cyclone separator. Gas from a cyclone is passed through a quench zone and excess dust from the cyclone is introduced into the gas... | 02/17/1981 |
| 4115137 | Method of producing cement clinker from chlorine-containing raw mixture The herein-proposed method of producing cement clinker from a chlorine-containing raw mixture, comprising the steps of introducing said mixture into a kiln, sintering of the mixture, removing chlorine-containing compounds from the resultant sinter by acti... | 09/19/1978 |
| 4101337 | Cement manufacture A method is disclosed for manufacturing white cement wherein cement clinker is burnt in a kiln and prior to discharge from the kiln the clinker is contacted with a reducing agent such as fuel oil. The method further comprises discharging the hot cement cl... | 07/18/1978 |
| 4081285 | Portland cement manufacture Waste matter is incinerated in a combustion zone external to a rotary cement kiln. The resulting gaseous product is taken up in effluent gas from the cement making process in contact with calcareous material. At least some of the combustion zone bottom as... | 03/28/1978 |
| 4080219 | Collateral drying process A method of utilizing waste heat from a fuel-fired electrical power generation or steam raising plant, wherein flue gas from said plant is conducted through a heat exchange zone in contact with relatively cool wet material for making Portland cement.... | 03/21/1978 |
| 4065320 | System for handling high sulfur materials Sulfur oxides have a strong affinity for free lime and readily form gypsum anhydrite. By utilizing 2200° F. or higher on-gas containing reduced quantities of sulfur to the preheat zone of a material treating apparatus, large quantities of sulfur can be r... | 12/27/1977 |
| 4052148 | Integrated reaction process A process in which a substance undergoes endothermic change within a predetermined temperature range in at least one stage of the process and is subsequently subjected to a substantially higher temperature in a further stage of the process, characterised ... | 10/04/1977 |
| 3986886 | Manufacture of cement clinker from raw slurry This invention relates to a method of manufacturing cement clinker from raw material in the form of cement raw slurry wherein the raw material is subjected to an initial heat treatment by bringing it into contact with hot gases by subjecting it to an init... | 10/19/1976 |
| 3972724 | Process of burning fuel slate to produce energy and cement clinker at the same time In a method of processing fuel shale to produce energy and cement clinker at the same time, oil shale and/or coal shale are disintegrated, homogenized and activated in a pin beater mill or vibrating mill. The effect of the treatment is monitored by X-ray ... | 08/03/1976 |
