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| Number | Title | Issue Date |
| 7645064 | Continuous mixing and delivery machine for temporarily flowable solid materials A mixing and delivery machine for flowable materials having on-site and towable mobility for mixing, hydrating, and delivering an admixture such as cementious mix, concrete, binder, graveled sand, mold sand and various other mixtures via an extended auger and elevat... | 01/12/2010 |
| 7270470 | Feed extender for explosive manufacture A feed device extends the run time for manufacturing explosive materials. The feed device includes a feed hopper for retaining processing materials where the feed hopper includes an access at the top of the feed hopper for inputting processing materials and an exten... | 09/18/2007 |
| 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 |
| 7258710 | Maritime emissions control system An Advanced Maritime Emissions Control System (AMECS) includes several Exhaust Intake Bonnets (EIBs) of different size and/or shape, an Emissions Capture System (ECS), and an Advanced Maritime Emissions Control Unit (AMECU) mounted on an Unpowered Seagoing Barge (US... | 08/21/2007 |
| 7108418 | Bearing seal assembly for concrete auger mixer and method for using same An auger mixer for mixing a concrete mix includes an elongated mixer housing having a mixing chamber for mixing the concrete mix therein. A mixing auger is rotatably mounted within the mixing chamber. A bearing assembly mounts one end of the auger shaft to the mixer... | 09/19/2006 |
| 6955731 | Explosive composition, method of making an explosive composition, and method of using an explosive composition An explosive composition is provided that is comprised of a Heavy ANFO and grain hulls. In one embodiment, the grain hulls are comprised of rice hulls. The grain hulls serve both as an inert bulking additive that reduces the density of the composition and as a sensi... | 10/18/2005 |
| 6910796 | Process and equipment for producing concrete products having blended colors A process and equipment for producing multi-color concrete products, including architectural concrete blocks, concrete bricks, modular concrete products that are suitable for use in landscaping applications, such as retaining wall blocks, concrete pavers, and concre... | 06/28/2005 |
| 6905048 | Volumetric solid and liquid dispenser A volumetric solid and liquid dispenser includes a drum sized for receiving and containing a predetermined volume of solid material from a solid material supply source. The supply source can be a hopper positioned above the drum. The drum is rotatably mounted to a s... | 06/14/2005 |
| 6726736 | System and method for reducing emissions from a dust generation station including a metal cutting station A system and method for reducing the emissions from a dust generation station, such as a metal cutting station, can be easily transported from location to location. The system uses a mobile carrier which supports a separator, such as a baghouse, as well as a telesco... | 04/27/2004 |
| 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 |
| 6568842 | High capacity mobile lime slaker A continuous preparation of calcium hydroxide slurry can be made on a mobile apparatus that uses an eductor to initially combine metered flows of calcium oxide and water. The calcium hydroxide slurry is retained in a deaerating sump and then pumped into a... | 05/27/2003 |
| 6220837 | Progressing cavity pump having a ratio of eccentricity, rotor diameter and stator lead A progressing cavity pump adapted for use in pumping liquid/solid mixtures with a solid content of about 50% has a single start helical rotor and a two start helical stator bore. The ratio of the eccentricity of the rotor to its minor diameter is about 1:... | 04/24/2001 |
| 5915833 | Method and device for cooling foundry sand A cooling apparatus for used foundry sand provided with a homogenizing and conveying apparatus in a constant vacuum with controlled water inflow and a suction point for the water vapor, the water evaporating due to the reduced pressure draws the heat of e... | 06/29/1999 |
| 5795060 | Method and apparatus for continuous production of colloidally-mixed cement slurries and foamed cement grouts An apparatus for high capacity production of high-fluidity, colloidally mixed cement slurry. Water and cement dust are combined at metered rates by a premixing assembly which discharges into a mixing tub. The high-speed, high-shear pump recirculates the m... | 08/18/1998 |
| 5718508 | Self-cleaning mixer for cement slurry A self-cleaning mixer includes a cylindrical housing and a feedscrew extending longitudinally through the housing for mixing water and cement and conveying the slurry through the housing. A chute at the infeed end of the housing receives a batch of materi... | 02/17/1998 |
| 5702181 | Pug mill water flow control system An apparatus for controlling the flow of water to a pug mill. A water supply system is connected to the pug mill for providing a flow of water to the pug mill. The water supply system includes an inlet line connected to a supply of water; a pump connected... | 12/30/1997 |
| 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 |
| 5570953 | Mud-mixing machine for drywall texturing and other applications A method of forming a mixture of powdered material and water includes the step of providing a hopper, a holding tank, a tube intermediate the hopper and the holding tank, and an air-powered auger arranged to feed powdered material from the hopper through ... | 11/05/1996 |
| 5513911 | Vehicle mixer In a mixing drum (16) of a vehicle mixer is supported a coaxial pipe (24) which together with a closure element (36) and a feeding hopper (42) forms a constructional unit. The pipe (24) is supported by two bearings of the mixing drum (16) so as to be rela... | 05/07/1996 |
| 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 |
| 5466063 | Device for continuously mixing liquid additives into a fluid This invention concerns a device for continuously injecting liquid additives into a fluid. The device includes a jet eductors system for prediluting the additives. Applications in the oil and related industries, the building industry and similar. FIG. 1... | 11/14/1995 |
| 5419633 | Paddle mixer with mixing drum mounted on transportable frame having paddles with rubber scraping elements Improved paddle mixer, including a stationary drum solid to a support frame, with a vertical shaft engaged with a motor-reducer unit and provided with a plurality of transverse arms to each of which at least a paddle is fixedly or otherwise rotatively con... | 05/30/1995 |
| 5397177 | Asphalt production plant having a two-burner dryer with increased exhaust capacity An asphalt production plant with a drum dryer having two burners and expanded exhaust gas exit area. The dryer has a rotatable dryer drum with an inlet end and a discharge end. A burner is positioned at each end of the dryer drum to produce a stream of ho... | 03/14/1995 |
| 5330265 | Apparatus and apparatus for mixing and cooling molding sand A process using an improved apparatus for mixing and cooling molding sand. The apparatus including a molding sand mixer that mixes molding sand and further having an adjustable water supply structure; sets of output sensors having a temperature sensor and... | 07/19/1994 |
| 5268111 | Concrete reclamation system with mixing agitator A separation and reclamation apparatus for separating a first discrete-phase solids material from a fluid mixture including, in addition, a second discrete-phase solids material and a continuous-phase carrier fluid, has a unitary vessel having a discharge... | 12/07/1993 |
| 5232282 | Food waste mixing and heat treating vehicle, hog lot and method of raising and feeding hogs A food waste mixing and heat treating vehicle used in feeding hogs has a wheeled chassis. A mixing drum is rotatably mounted on the chassis having an inner wall forming a mixing and heating cavity and having an opening into the cavity. Means are provided ... | 08/03/1993 |
| 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 |
| 5203628 | Portable batch mixing apparatus for cementitious construction materials A portable system for on-site batch mixing of cementitious materials, such as mortar and grout, includes a batch mixing machine for metering and mixing cement, sand and water, a cement storage silo sized to hold at least one commercial delivery truckload ... | 04/20/1993 |
| 5178455 | Method for recycling wash residue of ready mixed concrete and system therefor The present invention relates to a method and a system for recycling wash residue of ready mixed concrete include the steps of condensing used cement sludge to a predetermined concentration, storing the condensed sludge, sampling the stored sludge and det... | 01/12/1993 |
| 5137365 | Water metering system for concrete mixer A water metering system for a concrete mixing truck includes a secure pulsing type cold water meter connected to meter water applied to the mixing drum of the truck. The meter pulses an electrically resettable counter mounted in a secure housing in the ca... | 08/11/1992 |
| 5118197 | Process for mixing two liquids An apparatus and a process for mixing water from a pressurized source and an additive or admixture for a cementitious composition in a mixing chamber comprising introducing, in the form of a jet, water under a first pressure, which is above atmospheric pr... | 06/02/1992 |
| 5073030 | Drum apparatus for mixing asphalt compositions In a dryer apparatus including an elongated rotatable drum having an input end and an output end, a burner for directing hot gases into the input end of the drum, and an aggregate feed mechanism for supplying aggregate particles into the drum adjacent the... | 12/17/1991 |
| 4997284 | Concrete and mortar distribution process and apparatus Process and apparatus are provided to distribute specified, premixed quantities of dry mortar mix and cement to a construction site. Bulk bags and a hopper apparatus are transported to the construction site and utilized with a forklift and a mixer device.... | 03/05/1991 |
| 4989986 | Double counter flow drum mixer A drum mixer is provided for producing an asphaltic composition. The drum mixer utilizes a first heat source located at an intermediate position within the drum mixer for producing a first current of hot gases directed towards the entry end of the drum mi... | 02/05/1991 |
| 4963031 | Cement slurry batcher apparatus and process A novel process and apparatus for discharging, on a batch basis, cement and water as a slurry or in the form of separate discharges of slurry and cement, where the materials so discharged contain a predetermined amount of water and a predetermined amount ... | 10/16/1990 |
| 4955722 | Appliance for the preparation of bituminous coated products with a stationary mixer A mixer (10) consisting of a stationary casing (9), into which the outlet end (2b) of a rotary drum (2) opens, and mixing vanes fixed to the casing of the drum (2) and extending this casing axially in the direction of its outlet (2b). A burner (13) having... | 09/11/1990 |
| 4954995 | Device and method for preparing bituminous products A burner (13) and a conveyor (6) for aggregates (7) into the drum (2) penetrate into the drum at opposite ends (2a, 2b). Circulation of the gases inside the drum occurs in direction opposite to circulation of the aggregates. The burner has an elongated bo... | 09/04/1990 |
| 4913552 | Countercurrent drum mixer A drum mixer having an countercurrent flow drying zone and a parallel flow mixing zone is provided for producing an asphaltic composition. The drum mixer utilizes a heat source located at an intermediate position therein for generating three streams of ho... | 04/03/1990 |
| 4907890 | Portable-concrete mixing device and method for using same The portable continuous mixing device of the present invention comprises a first upper frame adapted to drop the dry concrete ingerdients into the upper end of a hopper. The ingredients drop out of the lower end of the hopper onto a second conveyor which ... | 03/13/1990 |
| 4900154 | Concrete mixer having means for determining the consistency of concrete mixing therein A concrete mixer is disclosed having a mixing drum and a drag body is mounted in the drum which has a drag surface positioned to at least partially come into contact with concrete in the drum during a measuring phase in the concrete mixing operation. A hy... | 02/13/1990 |
