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7530728 |
Water control apparatus
An embodiment of a water control apparatus is disclosed that may be used with a concrete mixing assembly. The apparatus may include flowmeter unit and a normally closed valve unit. The normally...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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4892411 |
Asphalt mixer apparatus and method
The present invention relates to a continuous drum dryer mixer apparatus and method for heating and drying virgin aggregates, as well as recycled asphaltic pavement materials and mixing such...
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4881819 |
Method and apparatus for preparing concrete mortar
The invention relates to a method and apparatus for preparing concrete mortar. In order to regulate the moisture content of the concrete mortar a sand sample is taken of the sand used. This sand...
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4867572 |
Asphalt plant with fixed sleeve mixer
An asphalt plant apparatus includes an inclined rotary drum dryer, the lower end of which is received within a concentric fixed sleeve. Aggregate is introduced into the upper end of the rotary drum...
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4865457 |
Concrete batcher with segmented entry of mixing ingredients
A concrete mixing apparatus including a paddle type mixer and a cement and water container mounted on a scale. The cement and water container is divided into separate cement and water compartments...
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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...
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4846580 |
Large scale concrete conveyance techniques
The disclosure describes a method and apparatus for continuous mixing, transporting and placing of large quantities of concrete in which aggregate transported on a belt conveyor is mixed with...
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4832497 |
Method and an apparatus for mixing gravel and bitumen
A method and an apparatus for mixing gravel materials and bitumen. The gravel material is mixed with a bitumen emulsion by causing the gravel material to fall onto an inclined screen (12)...
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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...
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4786179 |
Emergency protection apparatus and method for concrete mixer trucks disabled in the field
The invention includes apparatus and method for inhibiting the hardening of a wetted concrete premix in a filled concrete mixer including providing a rotatable concrete mixer drum having a...
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4778276 |
Device and process for continuous supply of hydraulically setting compound
A device for continuously preparing a hydraulically setting mass comprises a tubular housing having a downstream outlet opening and an upstream supply station for a dry component material of the...
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4775239 |
Double shaft forced-feed mixer for continuous and discontinuous manner of operation
A double-shaft forced-feed mixer, for example for building material mixtures, is proposed which is assembled according to the principle of movement of the batch-type mixer and is usable both for...
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4768884 |
Cement mixer for fast setting materials
A cement mixer includes receptacles for the aggregate, cement, water and additive which are mixed together to form a concrete mixture. A conveyor extends from an aggregate bin to a cross auger...
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4730934 |
Mobile mixer, preferably having counterrotational emptying, for building materials, in particular concrete
In a mobile mixer, preferably having counterrotational emptying, for building materials, in particular concrete, in a mixing drum (1) which, on its inner wall (9), has one or more flat elevators...
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4715720 |
Drum mix asphalt plant with knock-out box and separate pugmill coater
Asphalt plant apparatus comprising a drum dryer, a collection chamber or "knock-out box," a "baghouse," and a separate pugmill coater disposed directly underneath the collection chamber so that...
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4671665 |
Machine for mixing particles with a fluid composition
The machine disclosed herein is useful for blending a particle containing stream, especially a stream of solid particles, with fluids. In a typical operation, sand is mixed with a gel composition...
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4624575 |
Cement mobile mixer
A cement mobile mixer for mixing concrete from sand, aggregate, cement and water.
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