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| Number | Title | Issue Date |
| 7942566 | Fly ash treatment system and method of use thereof The present invention provides a system for treating fly ash and a method of use thereof. The system and method allow for the quick and consistent application of a chemical entity to fly ash so that the characteristics of the fly ash are changed in order to allow us... | 05/17/2011 |
| 7267473 | Transfer system for coloring agents A system for transferring coloring agents for concrete to a ready mix truck or the like, includes a tank for receiving coloring agents. The tank includes lines for supplying it with water and a pump for transferring the coloring agents to the ready mix truck through... | 09/11/2007 |
| 7264394 | Static device and method of making A static device and method of making is disclosed for mixing matter flowing therethrough. The invention comprises a tube having a polygonic cross section defining a plurality of corners. The tube is spirally twisted with the plurality of corners forming a plurality ... | 09/04/2007 |
| 7014392 | Device for pneumatic or hydraulic conveying of dusty, powdery or granular bulk material The present invention is directed to a device for pneumatic or hydraulic conveying of dusty, powdery or granular bulk material. The device includes a conveyor line, an inner pipe in the conveyor line that is parallel to the axis and preferably eccentric. The inner p... | 03/21/2006 |
| 6972100 | Method and system for providing articles with rigid foamed cementitious cores One aspect of the present invention pertains to an apparatus for forming a rigid foamed cementitious core within a plurality of article shells. In general, the apparatus can be comprised of a shell bank for retaining a plurality of article shells and comprising a sl... | 12/06/2005 |
| 5664881 | Counter-flow asphalt plant with multi-stage combustion zone overlapping the mixing zone A drum mixer is provided with a rotatable cylinder in which aggregates, reclaimed asphalt pavement and liquid asphalt are mixed to produce an asphaltic composition. The drum cylinder includes a first region, in which virgin aggregate is heated and dried b... | 09/09/1997 |
| 5580166 | Cement pump for a wet spray system In a concrete pump for wet spraying, in which standard concrete is pumped to a mixing jet, compressed air and if necessary a hardening accelerant are mixed into the concrete stream, which is applied with the jet and compressed; it is the purpose of the in... | 12/03/1996 |
| 4964731 | Shotcrete gun Shotcrete gun consisting of a concrete container and a spraying device, such as a worm screw, and a nozzle for pressurized air. The whole shotcrete gun assembly is mounted on a traversing mechanism allowing the shotcrete gun to be shifted in the horizonta... | 10/23/1990 |
| 4662759 | Premix injection system for asphalt compositions An injection system for asphalt, asphalt-containing or other viscous compositions, comprising a mixing drum or receptacle, an injection device having a housing and mounted nozzle jet for preparation and discharge of a premix comprising such asphalt or oth... | 05/05/1987 |
| 4585353 | Apparatus for the preparation and application in situ of blends of structural material A process for the preparation and immediate use in situ of ready to use blends of structural material, such as plaster, mortar, stucco, tile adhesive or similar blends, which, in contrast to the usual methods does not use as a raw material a dry mixture o... | 04/29/1986 |
| 4298288 | Mobile concreting apparatus and method A mobile concreting apparatus and method which may be used, in particular, for on-site construction of swimming pools. It includes a vehicle supporting a plurality of containers, each adapted to contain one of the ingredients of concrete. Each container i... | 11/03/1981 |
| 4293227 | Spraying unit for unhardened concrete and the like The present invention relates to a spraying unit for unhardened concrete and the like, which is provided with an apparatus capable of mixing a constant quantity of quick-set additive, for example, into unhardened concrete to be sprayed. The apparatus capa... | 10/06/1981 |
| 4239397 | Method for manufacturing shotcrete structures using a material having high impact resistance and optimum deformation properties The invention refers to fibre reinforced shotcrete and it more particularly resides in an improved method for manufacturing structures of such concrete by means of shotcrete. According to the new method a dry mixture of a binding agent and ballast is supp... | 12/16/1980 |
| 4225086 | Method and a device for adding material in an air stream to a nozzle Spraying of materials, which prior to the spraying operation have been mixed from two airborn material flows in a spray nozzle, results in a high wastage rate. It has now been found that this wastage can be highly reduced, if in an appropriate apparatus o... | 09/30/1980 |
| 4211490 | Drum mix asphalt plant with fiber filter dust collector Drum mix asphalt plant apparatus connected to a fiber filter dust collector for removing dust and other light particulate matter produced by operation of the drum mixer. Asphalt material is added to the drum mixer in a manner to minimize smoking of the as... | 07/08/1980 |
| 4208195 | Device for dispersing a residual gas comprising a plurality of injection nozzles A device for dispersing in the atmosphere a residual gas, especially a residual gas containing gaseous hydrocarbons, comprises an open ended mixing conduit having two end sections, at least one injection nozzle assembly each of which comprises at least on... | 06/17/1980 |
| 4140349 | Mobile mixing apparatus This mobile mixing apparatus utilizes a conventional pneumatic tractor trailer suitable for transporting and discharging granular bulk material which is modified to discharge and mix a liquid material with the granular material. The modification includes ... | 02/20/1979 |
| 4057443 | Foamed gypsum wallboard Lightweight gypsum wallboard produced by continuously combining a small amount of surface active agent with a liquid stream which stream is made up of substantially all of the liquids to be used in the manufacture of a continuous web of gypsum wallboard, ... | 11/08/1977 |
| 4050677 | Mixing device A device for the in situ building up of fibre-reinforced mortars and plastics, said includes an inner tube serving to forward a stream of air-born fibres. Surrounding the inner tube is a jacket with means for supplying pressurized air thereto, and having ... | 09/27/1977 |
| 4025057 | Equipment for making asphalt paving compositions Particulate emissions during production of asphalt concrete are controlled by contacting wet aggregate with an asphalt composition at or before introduction of the aggregate into a heated mixing and drying zone wherein the asphalt-aggregate mixture is mov... | 05/24/1977 |
| 3940119 | Rotor gun for the air placement of granular and cementitious materials Rotor gun means for the air placement of granular and cementitious material. A mixing chamber for granular and cementitious materials, has a rotor gun mounted therein. The rotor gun comprises a motor driven wheel having a plurality of holes or apertures e... | 02/24/1976 |
