Abstract: A manual mixer serves to facilitate mixing and agitating materials for use during surgery. The manual mixer includes a mixing assembly and an actuation assembly for actuating the mixing assembly. The mixing assembly includes at least a paddle portion and a plunger portion. The plunger portion is simultaneously capable of rotational movement with the paddle portion and movement upwardly or downwardly along the paddle portion. Rotation of the paddle portion serves to facilitate mixing and agitating of the materials, and downward movement of the plunger portion serves to facilitate dispensing of the materials from the manual mixer.

Abstract: In accordance with presently disclosed embodiments, systems and methods for efficiently handling dry additives to be mixed with bulk material in a blender are provided. The systems may include a support structure used to direct bulk material from one or more portable containers on the support structure to a first outlet location, and a combined metering/transferring system for directing dry additives from another portable container to a second outlet location. Specifically, the metering/transferring system may output a metered flow of dry additives to the blender mixer to be combined with bulk material that is released from the portable containers. The metering/transferring system may utilize a gravity feed outlet coupled to a metered screw or other conveying device to move the dry additive from the portable container to the second outlet location.

Abstract: A metering apparatus for introducing a powdery medium into a fluid includes a mixing vessel that can be filled with a fluid and a metering unit for the powdery medium. The metering unit has an inlet for the powdery medium, an inlet for a compressed gas and an outlet extending towards the mixing vessel, through which the powdery medium and the compressed gas can be discharged into the mixing vessel.

Abstract: The invention relates to a facility suitable for coating the inside of a pipe element with a mortar. It includes a feeding device (32) suitable for feeding the dry matter of the mortar, the feeding device including a feeding chamber (48) and a member (54) for transporting the dry matter, arranged in the feeding chamber, the feeding chamber being provided with a dry matter inlet (50) and a dry matter outlet (52). The facility also includes a mixing device (34) suitable for mixing the dry matter with liquid matter in order to obtain the mortar, said mixing device having a mixing member (82) and a chamber (74) for mixing the dry matter with the liquid matter. The mixing chamber has a dry matter inlet (76), a liquid matter inlet (78) and a mortar outlet (80). The dry matter outlet (52) of the transport device leads into the dry matter inlet (76) of the mixing chamber, and the feeding member (54) and the mixing member (82) are separate members. The invention can be used for the production of wastewater pipes.

Abstract: An apparatus for mixing a powdery medium with a fluid includes a mixing vessel which can be filled with the fluid and which has a feed for the fluid, an inlet for the powdery medium and an outlet for the fluid mixed with the powdery medium, and at least one mixing screen which divides the mixing vessel into a first section which includes the feed and a second section which includes the inlet.

Abstract: Improved single screw extruders systems (40) are provided including a single screw extruder (42, 92) as well as an upstream preconditioner (44). The extruders (42, 92) include a single, internal, elongated, helically flighted, axially rotatable screw assembly (52) having one or more improved screw sections (74, 74a, 76). The screw sections (74, 74a, 76) include specially configured flighting (86) wherein adjacent flighting portions (86a, 86b) have smoothly arcuate surfaces (88) extending between the respective flighting portion peripheries (90a, 90b). This flighting design provides smooth, substantially surge-free operation while increasing SME and cook values. The preferred preconditioner (44) has independently controlled mixing shafts (106, 108) allowing the shafts (106, 108) to be rotated at different rotational speeds and/or directions.

Abstract: A mortar mixing apparatus includes a screw conveyor disposed below the bottom of a mixing container in which a selectively operable agitator is located. An elongate opening in the bottom of the mixing container is open into the housing of the screw conveyor so that mixed mortar may flow into the screw conveyor. The screw conveyor may be rotated in a reverse direction to force materials upward into the mixing container, or it may be operated in a forward direction to convey mortar away from the mixing container. The agitator and the screw conveyor are independently driven by hydraulic motors.

Abstract: A process for stabilizing plaster includes: a) providing a heated HH-plaster; b) feeding the hot plaster in a moistening device having walls heated to at least 100° C.; c) injecting water and/or steam into the moistening device in conditions that such not yet moistened surfaces of the plaster are exposed to the injected water and/or steam; d) maintaining an atmosphere in the moistening device at a level of the dew point in the range of 75 to 99° C.; e) feeding the moistened blend into a curing device; f) maintaining an atmosphere in the curing device above 75° C. for at least 3 minutes; g) feeding the moistened and cured blend into a drying device; and h) drying the moistened and cured blend. Also an apparatus for moistening ?-hemihydrate plaster includes a rotating drum with lifting blades inside where all walls in contact with the product are externally heated at a temperature above 100° C.

Abstract: A segmented auger mechanism is mounted in the hopper of a concrete dispensing apparatus used to distribute a hydrated concrete mixture into a horizontally disposed form to manufacture pre-cast concrete structures, such as concrete wall panels used to form a foundation for a residential or commercial building. The auger mechanism is formed of connected segments that can be individually and independently removed from the concrete structure for service and repair. The auger is rotatably supported by a pair of end bearings supported on the opposing end walls of the hopper of the dispensing apparatus, and by at least one interior bearing rotatably supporting a jack shaft having opposing half-round connecting portions for attachment to a corresponding connecting portion on the auger shaft. Removal of a segment of the auger mechanism facilitates the removal of the entire auger mechanism to minimize the down time of the concrete dispensing apparatus.

Abstract: In at least one embodiment of the present invention, a device for mixing and dispensing a bone cement mixture is provided. The device comprises a housing having a chamber configured to contain a first and second bone cement. A plunger including a plunger rod having a piston at a first end and a plunger handle at a second end is configured to actuate within the chamber. A mixing element is disposed adjacent the piston and is configured to rotate within the chamber to mix the first and second bone cement components to form the bone cement mixture. The plunger is configured to rotate the mixing element to mix the bone cement mixture. The plunger is also configured to advance through the chamber. As the plunger is advanced through the chamber, the piston is configured to receive the mixing element and dispense the bone cement mixture from the device.

Abstract: A portable assembly for mixing water with cement powder and dispensing produced paste into a predetermined area, comprising a removable mixer assembly including an elongated mixing shaft, means for generating and transmitting a rotational motion to the mixer assembly, an uprightly supported mixing body having a mixing chamber including an upper opening and inner space for the water and dry cement to be mixed and homogenized inside thereof and aided by the mixing shaft. Also including a discharging mechanism having fixed and movable grip members to be manually actuated, than in turn actuate a spring assembly and releases a closure member to permit the mixed homogenized paste to flow out of the mixing chamber. The discharging mechanism further includes a guiding plate assembly to prevent the over spillage of the produced cement paste and guide the discharging flow out directly into the selected area.

Abstract: A milled materials processor consists of a self contained, stationary or fully mobile thermal process plant for the thermal processing of 100% recycled asphalt pavement into new hot mix paving material. Mobile units are designed for transportation by vehicle to a job site and rapid arrangement. For example, the milled materials processing unit at the standard legal load or non-permit load size and configuration processes approximately 25 tons per hour of pre-sized recycled asphalt pavement materials, approximately 50,000 lbs gross, having up to 3% moisture content. Larger unit sizes are available in transportable configurations of 10? wide×54? long, and 12? wide×62? long. Alternatively, units are designed and erected as stationary modular systems for higher tonnage capacities from approximately 200 tons per hour to approximately 400 tons per hour and higher.

Abstract: A segmented auger mechanism is mounted in the hopper of a concrete dispensing apparatus used to distribute a hydrated concrete mixture into a horizontally disposed form to manufacture pre-cast concrete structures, such as concrete wall panels used to form a foundation for a residential or commercial building. The auger mechanism is formed of connected segments that can be individually and independently removed from the concrete structure for service and repair. The auger is rotatably supported by a pair of end bearings supported on the opposing end walls of the hopper of the dispensing apparatus, and by at least one interior bearing rotatably supporting a jack shaft having opposing half-round connecting portions for attachment to a corresponding connecting portion on the auger shaft. Removal of a segment of the auger mechanism facilitates the removal of the entire auger mechanism to minimize the down time of the concrete dispensing apparatus.

Abstract: 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 repeatable manner, and to agglomerate these ingredients in a counter-rotating twin screw mixing apparatus for use in the preparation of batches of mixed concrete in a concrete batching process.

Abstract: The disclosure relates to a portable system for distributing building materials comprising a motor vehicle which can be in the form of a truck. Disposed on a flat bed of the truck is at least one container coupled to the motor vehicle. The container can include at least one stirrer wherein the stirrer is for stirring a first component in the container. There can be at least one mixer coupled to the motor vehicle wherein the mixer is for mixing at least one liquid component with the component in the container to form a slurry. Once the slurry is formed, it can be fed to at least one distribution feeder which is then used to feed materials to a job site. This system can include a computer for controlling the mixer, and the distribution feeder to control the distribution of this slurry material. The disclosure can also relate to a process for creating the dry mixture, the slurry and then distributing this slurry so as to create a building component such as a floor.

Abstract: A pigmentation dispenser utilizes a hopper having two rotors therein, a first rotor above a second rotor. The second rotor moves the pigmentation material through an outlet opening and deposits it on a conveyor containing a concrete mix. The concrete mix and pigmentation material are then moved to a mixer which mixes them together. A cleanout is also in communication with the hopper and the second rotor can be reversed to move the pigmentation toward the cleanout.

Abstract: Site-won spoil from an excavation which is a predominantly non-granular cohesive material can be converted into a material suitable for immediate use as a backfill material by a process of mechanically mixing the spoil with between 0 and 30% by weight or volume of added granular material and between 1 and 10% by weight or volume of a powder material comprising 1–5% lime or with the addition of 1–5% cement and/or 1–5% pulverized fly ash. The process works well with clay soils and the range of suitable spoil can be extended by adding cement to the powder material. The proportions in the mixture are chosen in dependence on the clay and moisture content of the spoil. A machine which can be set to mix the ingredients and water in the correct proportions on site is also described.

Abstract: A volumetric feed hopper is provided with a variable speed drive to vary the feed rate of the hopper. The hopper is further provided with adjustable legs with pivoting feet to enable the hopper to be installed a various heights and on uneven surfaces.

Abstract: A portable mixing/delivery apparatus mixes dry pre-blended materials, such as homogeneous cementitious combinations of dry sand, cement, Lime, color pigments, etc., packaged in large bulk bags for use at a remote construction site. The bulk bag is lifted by a removable rack having plural lift eyes and the combination is positioned over a height adjustable frame. The granular material is then discharged into a continuous mixer having a dynamic input mixing stage, an output dry-to-wet mixing stage, and a transition stage therebetween. The entire assembly (bulk bag, frame and continuous mixer) is portable and can be lifted such as by a forklift to the height of a masonry scaffold for dispensing the mixed, wet granular material directly to the point of use. The apparatus allows the continuous mixer and its discharge tube to rotate to facilitate dispensing of the material directly to the point of use.

Abstract: Provided herein are combinations of equipment capable of providing the continuous fabrication of road surfaces and the like, by virtue of the continuous manufacture of the concretes used in making the road surface at their point of use. The invention also includes a process for fabricating a road surface or the like. By the present invention it is now possible to provide a greater quantity of road surface in a shorter amount of time as provided for in the prior art, wherein the road surface has a quick-cure time owing to the use of quick-setting cements. Such quickly laid roads are capable of handling loads of about 100,000 lbs. within about 2 hours of its being fabricated and laid in place.

Abstract: A portable concrete plant for producing ready mix concrete proximate to a location where the ready mix concrete is used. The portable concrete plant includes storage regions for storing components used in the ready mix concrete. The portable concrete plant also includes a slurry mixer for preparing slurry that is used in the ready mix concrete. The portable concrete plant further includes conveying systems for conveying the components from the storage regions and from the slurry mixer to a system discharge port.

Abstract: The invention relates to a method and a device for providing at construction sites paste-like building materials, especially mortar, being delivered in a fixedly pre-determined basic consistency. A conveying and mixing pump with an additional water supply opening is provided below the storage container for the paste-like building material. By means of the water supply opening, additional water is mixed with the mortar in order to produce the desired mortar consistency. For this purpose, a mixing portion having hedgehog-type mixing elements is provided.

Abstract: A mixer for particulate materials, such as soil, dirt, sand, concrete, lime, fertilizers, aggregate, and water, hitched to a skid steer motor vehicle has a bucket for accommodating the particulate materials. A pair of augers having opposite spiral flights located within the bucket are driven by a hydraulic fluid operated motor to mix the particulate materials. The operator of the vehicle controls the hydraulic motor to reverse the rotational direction of the augers to control the mixing of the particulate materials. A door mounted on the side wall of the bucket is movable with a hydraulic cylinder to an open position to allow the particulate materials to be discharged from the bucket.

Abstract: 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 stages from one another. The input mixing stage includes a hopper for receiving the mortar and a horizontal metering screw having a detachable mixing auger. The auger mixes the dry mortar, while the metering screw moves the mixed mortar through a discharge aperture in the hopper and into the transition tube. The metering screw extends into the transition tube for further displacing the dry mortar into the output mixing stage which includes a mixing tube having a fixed internal baffle assembly and an auger disposed along its length. A source of water is connected to the mixing tube for forming a mortar-water slurry.

Abstract: There is disclosed a mobile apparatus for mixing and dispensing mixtures from an ingredients container including a hopper with a channel-shaped floor portion containing a screw auger. A cover over the screw auger may be raised so that a gap between the cover and the hopper walls allows metered amounts of ingredients to be conveyed by the screw auger to a separate mixer and a dispenser. The mixer and dispenser can be in the form of a tapering ribbon-blade mixer located in a frusto conical hollow body pivotally, slidably and extendably mounted at the rear of a transport vehicle. The mixer and dispenser can be pivotally mounted to a bracket mounted on rails to move slidably across the width of the transport vehicle.

Abstract: Apparatus for distributing and producing cement mixes, substantially concrete, using an endless conveyor belt movable at the base of separate containers which contain the inert materials and the cement, and a reservoir for the mixing water, to form proportioned mixes in a screw mixer, with unloading of the product simultaneously with mixing; the apparatus comprising a supporting framework, on which are supported, at least one hopper-like prism-shaped container for the inert materials with adjustable discharge openings, and, in a raised position with respect to the hopper for the inert materials, at least one hopper-shaped container with adjustable opening for the cement; an endless conveyor belt being interposed between the framework and the discharge openings of the hoppers for the inert materials and for the cement, which are aligned to each other along an inclined plane; the belt is arranged at an angle along the plane of arrangement of the discharge openings, so as to make contact with, and pass beyond, t

Abstract: A mixing device (1) having at least two concentric tubular elements (2, 3) including an outer tubular element (2) and an inner tubular element (3) inside the outer tubular element, the outer tubular element and the inner tubular element each supplying a liquid (5) or solid products to be mixed together, and a helical member (4) disposed for rotational movement inside the outer tubular element for entrainment of the liquid (5) or solid products, the helical member surrounding the inner tubular element, the outer tubular element including at least one inlet orifice (6a) for introducing the liquid (5) or solid products into the outer tubular element to be entrained by the helical member, and an outlet orifice (7) for delivering a mixture (9) of the liquid and solid products (5, 8) outside the outer tubular element, the inner tubular element (3) having an open end terminating inside the outer tubular element (2) downstream of the inlet orifice (6a) and upstream of the outlet orifice (7), wherein the mixture (9) i

Abstract: 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 has preferable thermal properties. The material is capable of being sanded, chiseled, drilled, sawed, nailed and bolted in a manner similar to like operations with wood. In a second, separate aspect, the lightweight building material is manufactured into a lightweight aggregate material suitable for use in the construction of pre-cast objects, such as, for example, construction blocks. In a third, separate aspect, a method of manufacturing a lightweight aggregate material includes the steps of providing a lightweight building material in wet pulp form, adding one part of wet pulp to three or more parts of dry aggregate, and mixing the wet pulp and dry aggregate in a mixing screw conveyor.

Abstract: A mortar mixing machine has a frame and a hopper supported by the frame for containing dry mortar. The hopper has an outlet with an outlet opening. A first conveying and mixing tube, connected in a working position thereof to the outlet so as to extend horizontally, has at least one water inlet and is designed for mixing the dry mortar fed into the conveying and mixing tube from the hopper with water introduced via the at least one water inlet to prepare mixed moist mortar. The first conveying and mixing tube has a removal opening for the mixed moist mortar remote from the outlet. A second conveying and mixing tube is connected to the frame for directly receiving in a working position thereof the mixed moist mortar. The second conveying and mixing tube conveys the mixed moist mortar in a direction opposite to the conveying direction of the first conveying and mixing tube. The second conveying and mixing tube has a drive and is slidably retractable into a rest position together with the drive.

Abstract: 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 material and directs the material into the housing. The feedscrew turns on a hollow shaft including a plurality of outwardly directed nozzles along a portion of the length of the shaft. The housing includes a plurality of inwardly directed nozzles fed from a pair of manifolds. During a cleaning cycle, one of the manifolds is shut off, thereby increasing the water pressure in the other manifold and increasing the force of the spray to enhance cleaning. The housing is slightly inclined to provide gravity feed of slurry in addition to the feedscrew.

Abstract: A device for and a method of mixing and dispensing alginate is disclosed. The invention entails a pouch having a sealable aperture through which alginate and water may be added. The pouch also has an sealable spout. The function of these two openings may be performed by a single opening. When the alginate and water are in the pouch, a dentist will mix the two together by manipulating the pouch with his hands. When the contents of the pouch are thoroughly mixed, the spout may be opened and the pouch evacuated. When the pouch is empty, it may be discarded.

Abstract: A mixing auger apparatus for an on-site mobile concrete mixer is disclosed wherein the mixing auger apparatus is capable of effective operation while oriented at an angle of inclination greater than 22.degree. to the horizontal. The mixing auger apparatus is provided with a flexible housing that extends around the entire circumference of a half flight auger. The flexible housing is suspended from a frame such that the housing is flexible completely around the mixing auger. Adjustment devices allow the positional movement of the flexible housing relative to the mixing auger to modify the clearance between therebetween. The flexible housing is separable to permit movement thereof into an inoperable position to facilitate a cleanout of the mixing auger apparatus.

Abstract: 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 concerned with a bin system for the fly ash solids and dry cementitious solids, opposed conveyor flight elements within the bin system leading to a metering valve system, a conveyor system for receiving the fly ash and cementitious material solids in metered proportions and then mixing them with a liquid to form a slurry, a conduit for pneumatically supplying solids entrained in an airstream to the bin system, a pressure controlled system for egressing air from the bin system and separating remaining solids from the air while maintaining the bin system under less than atmospheric pressure, and controls for monitoring the volume of material in the bin system.

Abstract: An auger conveyor assembly including a helical auger infeed section having interrupted auger flights which communicate with an offset, commonly driven outfeed section including a helical ribbon auger and whereat both augers simultaneously blend the mixture at a controlled speed differential. A surrounding housing includes a formed length of rubberized channelway and means are provided for varying the tilt angle of the housing, whereby the blending rate and contained volume of mixture are controlled relative to an outlet port.

Abstract: A system for mixing cementitious material, liquid and aggregate to form concrete includes a cementitious material measuring device which provides dry cementitious material to an enclosed screw conveyor assembly. The dry cementitious material is thoroughly mixed with a liquid within the screw conveyor to form a flowable slurry without producing external cement dust pollution. The slurry is output by the screw conveyor into a final product mixing chamber where the flowable slurry is mixed together with aggregate to form concrete. The screw conveyor assembly has an in-line input and output, and space-saving diverging/converging conveyor sections, to facilitate the retrofitting of existing concrete mixing plants. The conveyor assembly includes a cement metering function as well as a slurry mixing function. A selectively openable and closable bypass gate permits the dry cementitious material to be sent directly to the final product mixing chamber in the event of conveyor failure.

Abstract: The invention comprises a mobile trailer having a frame with a set of wheels on the frame for hauling the trailer and a pair of storage bins on the frame in side by side spaced relation with one bin adapted to a receive peat with a mixing blade to mix the peat and the other bin adapted to receive sand. The bins have openings along their bottoms and connecting openings along their vertical front walls with vertically adjustable plates to vary the sizes of the vertical openings. Horizontal conveyors are mounted beneath the bottom openings to the bins. Collecting and mixing blades are in the front of the trailer and a rotating spreader mounted to the rear upper portion of the trailer. An inclined conveyor is mounted with its lower end beneath the mixing blade and its upper end above the spreader.

Abstract: Process for manufacturing walls from earth and sand mortars includes making a mortar mixture containing a dry aggregate mass of between 15 and 50% by mass of earth and between 85% to 50% by mass of sand, bonding materials in a mass of at most 10% of the dry aggregate mass, and water in a mass of at most 22% of the total dry mass of earth, sand and bonding materials, stirring the mixture continuously and transferring while stirring the mixture by force into an inlet of a pump, and pumping the mixture from the pump and projecting the mixture within a framework against a vertical projection support and allowing the mixture to set.

Abstract: An apparatus for mixing and spraying a slurry. The apparatus comprises a mixing chamber and a screw means, disposed within the chamber, for mixing and transporting material downstream to an air atomization nozzle. Another aspect of this invention is a method for mixing and spraying a slurry. The method comprises introducing and propelling a particulate solid along a mixing chamber. A liquid is introduced downstream from the introduction of the solid, a sufficient distance such that no substantial liquid backs up to the introduction of the solid. The solid and liquid are mixed to form a slurry, substantially in the absence of air. The slurry is propelled downstream, substantially in the absence of air, and atomized.

Abstract: 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 horizontal, vertical and depthwise directions beside the element to be shotcreted.

Abstract: A portable apparatus adapted for use in filling chuck holes in paved surfaces with a sulphur-based material that has been heated to a plasticized condition. The apparatus includes an electrically heated furnace in which an auger is mounted for the purpose of moving a sulphur-based material through the furnace at a controlled rate (e.g., about 2 feet per minute), such that the material will be elevated to a temperature of above 305 degrees Farenheit (the melting point of sulphur) to produce a tenacious filler material. The furnace is heated by tubular resistance heaters that are bent in a spiral fashion around a mandrel, so that they may be placed in intimate contact with the exterior of a tube which constitutes the core of the furnace. The furnace is fed by a hopper that is mounted above the entry point for the auger, so that dry material may be fed--by gravity--into the furnace whenever a gate-valve mechanism is opened.

Abstract: A modularly constructed, trailerable, skid mounted, multi-compartmented concrete mixer and cement storage silo having a plurality of longitudinally aligned, bottom mounted, driven feed chains. In a combination construction, a single motor is cooperatively coupled to the feed chains of each mixer compartment and the feed chain of the cement silo to feed the cement/sand/aggregate in metered quantities to a turreted, separately powered auger where water is added and along the length of which the concrete is mixed. A silo vent column includes a plurality of fabric collection filters and means for vibrationally removing and reclaiming the cement. Air infiltration ports mounted along the bottom of the cement silo and one or more vibrators mounted to the mixer adjacent the sand and aggregate bins prevents crusting. Alternatively, the silo may be self-powered, and/or the mixer and silo may be transported independent of one another and/or without the trailer.

Abstract: 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 deposits the dry ingredients into the input end of a continuous auger mixer. Water and admix are also added to the input end of the auger mixer and the mixer mixes all of these ingredients and discharges them from a discharge end.

Abstract: A dry bulk cement storage and mixing system comprises one or more generally cylindrical storage tanks or bins having somewhat wedge shaped bottom discharge sections with tapered flight conveyor screws extending across the diameter of the bin at the convergence of opposed sloping sidewalls of the bottom section. The conveyor screw is connected to a pneumatic fluidizing plenum wherein compressed air is introduced into the plenum for conveying material to a mixer or recirculating the material back into a selected storage tank through a distributor device mounted on top of the tank which distributes the material to minimize segregation of smaller or less dense particles during discharge of the material into the storage tank. One embodiment of the storage tank is mounted for rotation about a generally horizontal axis and includes a transversely extending cement unloading and vent conduit extending within the tank chamber.

Abstract: The method and apparatus for forming an encapsulation or encasement about a structural member that is particularly well suited for use in a marine environment is disclosed. A two component polymer system for protective and repair encapsulation is pumpable in two separate streams to the location of the structural member to be encapsulated. The two reactive components are combined in a static mixer immediately prior to being injected within the surrounding translucent jacket. By combining the reactive components immediately prior to use, premature set up is avoided and the resulting grout may be directed to flow upwardly in the jacket for enhancing final properties. By suitable coloring of the components, visual monitoring of the final mixing and distribution in the translucent form or jacket of the encapsulation material may be monitored. A field test for determining bond strength of the encapsulation polymer to the structural member is also disclosed.

Abstract: A loading conveyor for a mobile concrete mixing machine is disclosed wherein the conveyor is provided with a receiving hopper for receiving a supply of material from an external source of supply. The chain and slat conveyor is provided with an elevating portion that conveys the material from the hopper to a delivery portion which permits selective delivery to one of two aggregate supply bins. The floor of the conveyor is disposed between an upper delivery run and a lower return run and is provided with a movable section actuated by hydraulic cylinders to selectively create an opening in the floor over one or the other of the aggregate supply bins. The return run is operable to redistribute piled material within the supply bin during operation of the conveyor.

Abstract: A method and apparatus for continuously producing concrete at a job site is disclosed wherein the machine is provided with separate aggregate supply bins and a cement supply bin which are arranged in a generally linear fashion on a mobile frame and sized to hold at least a standard truck load of material. Delivery conveyors in operative communication with the supply bins convey material from the bins into a mixing auger where the materials are combined with water to produce concrete. A loading conveying is operable to receive different aggregates from delivery trucks and convey the aggregates to the respective supply bins while the machine continues forward movement along a path of travel. As a result, the concrete production machine can produce and discharge concrete in a continuous manner along its path of travel without stopping for frech supplies of materials.

Abstract: 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 beneath a cement bin. A plurality of mixing augers extends along the side of the cement mixer from the cross auger to the rear of the cement mixer. The mixing augers each include a helical auger fin preferably having a plurality of notches spaced along an outer edge of the auger fin. The auger boot may include a mechanism for adjusting the distance between the auger boot and the auger fin.

Abstract: There is provided a mixer especially suitable for small batches of cementitious product comprising a receptacle and means for mounting a motor drivable paddle arrangement within the receptacle in such a manner that the paddle, while operating, can be moved manually to sweep substantially the entire volume of said receptacle.In preferred arrangement the paddle arrangement is powered by a portable electric drilling machine.

Abstract: An auger assembly is provided which includes a core, the surface of which increases in diameter from the upstream end towards the downstream end. The auger flighting upon the core, however, maintains a constant diameter from the upstream end towards the downstream end so that the depth of flighting gradually decreases to zero at the downstream end. This means that the maximum thrust against the concrete being augered occurs at a negative angle of approximately 105.degree., said thrust being at right angles to the surface of the core. This produces a negative flow of the concrete thus contradicting the free concrete flow required in order to provide the necessary bond between the concrete and the cables. The present invention reduces this surface angle to an angle of approximately 90.degree., or having the surface substantially parallel to the longitudinal axis.

Abstract: A cement mobile mixer for mixing concrete from sand, aggregate, cement and water.