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| Number | Title | Issue Date |
| 7320539 | Concrete batching facility and method A concrete batch mixing system and method are disclosed that enable the batch master to measure and control both the water and cementitious ingredient feeds in relation to each other so as to be able to blend the two ingredients in a known, selected, adjustable and ... | 01/22/2008 |
| 6645275 | Apparatus and methods for removing fines from a gas stream A bag house is mounted on a portable trailer and has a tube sheet with depending filter bags in part defining a first plenum for receiving a gas stream with fines and a second plenum for receiving clean gas from the filter bags. The fines are collected in... | 11/11/2003 |
| 6607298 | Transportable concrete station including a mixer component and a conveyor rotatable between transport and working positions A concrete mixing plant, with an aggregate storage to which a central part is fixed forms a transportable concrete station. In the concrete mixing plant there is a conveyor that transfers the aggregate to the aggregate mixer component, the mixer component... | 08/19/2003 |
| 6123445 | Dual stage continuous mixing apparatus A mixer for dry powder, very fine or granular materials and a liquid, e.g., mortar or cement and water, includes a dynamic input mixing stage, a static output mixing stage and a transition tube connecting the two stages in a manner which isolates the two ... | 09/26/2000 |
| 5967655 | System for mixing cementing material and mineral aggregate Apparatus for mixing cementing material and mineral aggregate includes a container having a first chamber and a second chamber each having a top and a bottom. Cementing material is in the first chamber. Mineral aggregate is in the second chamber. An auger... | 10/19/1999 |
| 5873653 | Mobile pugmill having a weight metering control system A mobile pugmill accurately mixes an aggregate, an additive and a liquid supplied to a mixing chamber. The pugmill includes a first scale for weighing the aggregate being supplied to the mixing chamber and producing a signal proportional to aggregate weig... | 02/23/1999 |
| 5785419 | Lightweight building material and method of construction of cast-in-place structures In a first aspect, a lightweight building material for use in above grade construction comprising cement, fly ash, cellulose fiber, and water. In cured form, the material has the appearance and strength of standard concrete, but is lighter in weight and h... | 07/28/1998 |
| 5785420 | Apparatus for metering and mixing aggregate and cement Portable metering and mixing apparatus includes a trailer having a hopper thereon divided into two compartments, one compartment for sand material and another compartment for cementitious material. Screw conveyor assemblies, or auger assemblies, receive t... | 07/28/1998 |
| 5624183 | Apparatus for metering and mixing aggregate and cement Portable metering and mixing apparatus includes a trailer having a hopper thereon divided into two compartments, one compartment for aggregate and another compartment for cementitious material. An auger receives aggregate from one compartment and feeds ag... | 04/29/1997 |
| 5609416 | Portable continual mixer A small batch mixer particularly suited for preparing small quantities of mixture blends dry powdered material with an aggregate and a liquid. The ingredients may be cement, sand, and water. The batch mixer has two screw augers. The first auger feeds dry ... | 03/11/1997 |
| 5605397 | System for mixing cement and aggregate A system and method for mixing particulate cement with mineral aggregate(s) so as to minimize the formation and escape of dust. The system involves dispensing aggregate(s) downwardly from a hopper and simultaneously dispensing the cement particles from a ... | 02/25/1997 |
| 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 |
| 5470147 | Portable continual mixer A portable continual mixer blends dry powdered material with an aggregate and a liquid. The ingredients may be cement, sand, and water. The batch mixer has two screw augers. The first auger feeds dry mix into an elongated mixing chamber, and has its own e... | 11/28/1995 |
| 5433520 | Method and apparatus for continuously processing particulate cementitious material and fly ash solids and mixing them with a liquid to provide a liquid slurry of consistent proportions A controlled method of, and apparatus for, continuously processing initially dry, particulate, cementitious material and fly ash solids and mixing them with a liquid to provide a liquid slurry of consistent proportions. The method and apparatus are concer... | 07/18/1995 |
| 5383725 | Asphalt/dust/rubber processing equipment A closed, pressurized apparatus for introducing aggregate dust and rubber into a stream of liquid asphalt is provided. Aggregate dust and rubber are dispensed through a valve from a receiving chamber into a mixing housing. The aggregate dust and rubber en... | 01/24/1995 |
| 5375925 | Material blender mixer and method therefor A material blender mixer is mounted to a chassis of a vehicle. The mixer includes a first material holder bin mounted to the vehicle chassis, a second material holder bin mounted to the chassis positioned reawardly of the first material bin, a device for ... | 12/27/1994 |
| 5213414 | Mixing apparatus The apparatus allows mixing of a solid and a fluid continuously to facilitate downhole operations, especially gravel packing. The apparatus comprises a solids hopper, with preferably an internal auger, to meter the solids flowrate. The solids drop into a ... | 05/25/1993 |
| 5209563 | Dust return system A closed, pressurized dust return system for introducing aggregate dust into a stream of liquid asphalt is provided. Aggregate dust is dispensed through a valve from a receiving chamber into a mixing housing. The aggregate dust enters the mixing housing a... | 05/11/1993 |
| 5100239 | Method of manufacturing concrete Method for manufacturing concrete by mixing concrete materials including a cement, aggregate, admixture and at least one of water and ice. The aggregate is moved prior the mixing and a low-temperature liquid is sprayed on the aggregate for cooling while t... | 03/31/1992 |
| 4865227 | Dispensing apparatus A material dispensing apparatus in combination with a tipping body, such as a tipping truck, the body of which is tiltable between a horizontal position and an inclined position includes at least one removable module mounted on the tipping body and provid... | 09/12/1989 |
| 4810097 | Dispensing apparatus A dispensing apparatus is located in the rear of a tip truck body. When the tipping body of the truck is inclined gravity causes bulk material held in the tipping body at either side of a partition to feed augers. The dispensing apparatus includes at leas... | 03/07/1989 |
| 4795264 | Arrangement for concrete production in tunnels A concreting train consists of a plurality of wagons supporting a mixer, a multiple conveyor arrangement and separate containers for cement and aggregate. A container for cement has at least one integrated conveyor worm. All container wagons are provided ... | 01/03/1989 |
| 4624575 | Cement mobile mixer A cement mobile mixer for mixing concrete from sand, aggregate, cement and water.... | 11/25/1986 |
| 4548507 | Mixing apparatus for the production of mixtures Mixing apparatus is provided for the production of mixtures of particulate solids and in particular, for the production of various mortar mixtures. The apparatus includes metering means, control means and transfer means for metering out and introducing pr... | 10/22/1985 |
| 4506982 | Apparatus for continuously blending viscous liquids with particulate solids An apparatus for continuously blending a viscous liquid, such as hot asphalt, with particulate solids, such as ground rubber, includes a vertical cylindrical tank in which is disposed a smaller vertical vessel defining therein a blending chamber. Open low... | 03/26/1985 |
| 4487507 | Portable waste processing unit A processing apparatus for sludge and liquid waste comprising a wheeled vehicle having a frame, a drum type mixer mounted for rotation on said frame, motive power means including a hydraulic pump, a hydraulic motor for rotating said drum type mixer mounte... | 12/11/1984 |
| 4395128 | Mixing tower for concrete or the like A mixing tower for concrete or the like has a series of superimposed prefabricated modules which are connected to one another and include a cylindrical lowermost module, a frustoconical intermediate module with several outlets which is integral with the t... | 07/26/1983 |
| 4304493 | Sand mixer A foundry sand mixer for mixing and dispensing silica or green sand and their additives through the enclosed longitudinal belt conveyor mechanism having a plurality of openings in the top communicating with a first feeder disposed above the enclosed longi... | 12/08/1981 |
| 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 |
| 4269798 | Method for producing a curable, filled resin composition, e.g., artificial marble A filler material and a heated, catalyzed synthetic resin are sequentially introduced into a mixer. The mixer has a conveying section and a mixing section. The resin and filler are introduced into the conveying section, which forces the combined resin and... | 05/26/1981 |
| 4231664 | Method and apparatus for combining high speed horizontal and high speed vertical continuous mixing of chemically bonded foundry sand The specification discloses a method and apparatus for combining high speed horizontal and high speed vertical continuous mixing of sand and binder ingredients for mold making purposes. Sand supplied by a hopper assembly and liquid binder ingredients supp... | 11/04/1980 |
| 4223996 | Apparatus for mixing solid and liquid constituents of mortar or the like Apparatus for mixing metered quantities of cement with metered quantities of water has a horizontal housing with a first section having an inlet for admission of cement, a cylindrical intermediate section which receives cement from the first section, and ... | 09/23/1980 |
| 4219279 | Mobile gunnite material mixer A mobile gunnite material mixer comprising a vehicle having a first load carrying portion for housing a supply of sand, a second load carrying portion separate from the first load carrying portion for housing a supply of cement, a mixing apparatus spaced ... | 08/26/1980 |
| 4075710 | Apparatus for producing hot mix asphalt utilizing recyclable asphalt aggregate Apparatus for producing hot mix asphalt utilizing new aggregate and a previously manufactured and layed asphalt mix which has been reduced to form recyclable aggregate, comprising a cylindrical mixer drum supported for rotation about its longitudinal axis... | 02/21/1978 |
| 4071226 | Portable concrete proportioning mixer A portable proportioning mixer, adaptable to mix concrete or other material, such as fertilizer and plastics, including a plurality of separate hoppers with discharges at their lower ends; a conveying and mixing trough adapted to receive materials from th... | 01/31/1978 |
| 4004782 | Machine for mixing aggregate and resin A machine for mixing a resinous binder compound with aggregates on a continuous flow basis to produce a building material or the like, without the use of cement or water. Aggregate is fed into a first mixing chamber where a metered amount of resin binder ... | 01/25/1977 |
