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| Number | Title | Issue Date |
| 7351025 | Aggregate handling system An aggregate handling system includes an aggregate delivery station, which includes one or more delivery bays for receiving aggregate from a delivery truck. The system includes storage apparatus associated with each delivery bay and adapted to receive aggregate by g... | 04/01/2008 |
| 7347007 | Low pressure high capacity dryer for resins and other granular and powdery materials A vacuum dryer and method for drying granular or powdery material including at least one canister for holding said material being movable among a series of locations including material heating and vacuum drying locations, means for moving said canister among said lo... | 03/25/2008 |
| 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 |
| 7252309 | Containerised handling of bulk materials and apparatus therefor A freight container (10) has a base (20) or a portion thereof that can be opened to discharge its contents. This container (10) has a top which can be opened in similar manner as the base. Another container having at least one compartment, each ... | 08/07/2007 |
| 7234247 | Low pressure dryer A low pressure dryer for granular or powdery material includes a plurality of canisters rotatable about a common vertical axis serially among material heating, vacuum drying and material inventory discharge positions; pneumatic piston-cylinder means for rotating the... | 06/26/2007 |
| 7225932 | System units for treatment of aggregate material An aggregate storing and classifying mechanism for production of asphalt in plants, comprising a body (2) having plurality of circular sections (6) arranged in a manner of substantially surrounding the body (2) for storing aggregate material com... | 06/05/2007 |
| 7226203 | Fluid mixing system A method for continuously mixing a borehole fluid such as cement includes using a measurement of the solid fraction of a cement slurry as it is being mixed to determine the ratio of the solid and liquid components to be added to the slurry. A system for mixing the i... | 06/05/2007 |
| 7207212 | Device and method for weighing concrete material A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate fe... | 04/24/2007 |
| 7196277 | Device and apparatus for measuring the load in a chamber of a vehicle A cement mixer truck and a weight measuring system is provided, comprising a mixing chamber, at least one rear roller bearing assembly, and a front mounting assembly. The rear roller bearing assembly includes a roller bearing and a first weight measurement device. T... | 03/27/2007 |
| 7175333 | Method for delivery of bulk cement to a job site A method for delivering a pre-weighed package comprising sand, aggregate and dry cement to a mixing site comprises the steps of preparing a first mixture comprising fine aggregate and coarse aggregate at an offsite plant. The first mixture is placed into a first sto... | 02/13/2007 |
| 7165877 | Slurry mixing apparatus The invention is an apparatus for mixing fluent material. A hopper is pivotably mounted to a frame on a pivot axis that is substantially spaced from the axis of rotation of a mixing paddle. Because the pivot axis is substantially spaced from the axis of rotation, th... | 01/23/2007 |
| 7134806 | Repairing road surfaces A method of repairing a road surface includes providing a hopper mounted on a spreading vehicle and means to spread material carried in the hopper over depressed areas of the road surface to fill them with the material. At ambient temperature, a batch of patching sl... | 11/14/2006 |
| 7066689 | Vacuum loading system Apparatus for providing granular material to a loading hopper preparatory to processing includes a receptacle receiving material prior to processing thereof by machinery supplied by the hopper with a top including a first valve for selectably connecting the receptac... | 06/27/2006 |
| 7056008 | Fluid mixing system A method for continuously mixing a borehole fluid such as cement includes using a measurement of the solid fraction of a cement slurry as it is being mixed to determine the ratio of the solid and liquid components to be added to the slurry. A system for mixing the i... | 06/06/2006 |
| 7048429 | Concrete mixer In order to make good-quality concrete, a concrete mixer for mixing materials of concrete by rotation is provided so as to enhance fluidity of a mixture. A mounting frame 7 supporting a drum 2 of a concrete mixer 1 fixes a vibration device 25... | 05/23/2006 |
| 7021469 | Apparatus for feeding particulate products to a user machine An apparatus (1) for feeding a user machine (3) with particulate products, such as products for infusion like tea, chamomile and herbal teas in general, comprises a hopper (2) for dispensing the product and means (40; 7) for transferring ... | 04/04/2006 |
| 6991361 | Portable concrete plant 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 incl... | 01/31/2006 |
| 6974317 | Lightweight concrete composite blocks An apparatus for manufacturing lightweight concrete composite blocks includes a form, a station conveyor, a form-loading station, a form assembly station, a curing oven, and a block removal station. The station conveyor conveys the form or a multitude of forms aroun... | 12/13/2005 |
| 6964550 | Chain conveyor in the form of scales A chain conveyor for gravimetrically measuring/dosing materials, especially bulk materials. The conveyor includes a housing/trough in which at least two chain conveyors with strip-shaped driving elements attached thereto rotate, wherein a measuring bridge that is su... | 11/15/2005 |
| 6929393 | Asphalt production plant An asphalt production plant includes an asphalt binder storage tank, a mixer for mixing asphalt binder and aggregate materials, an asphalt binder pumping system for conveying asphalt binder to the mixer and an asphalt binder metering system for controlling the rate ... | 08/16/2005 |
| 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 |
| 6876904 | Portable concrete plant dispensing system A computer controlled pumping and measuring system is used to dispense chemicals into a concrete mix. The redundant use of positive displacement pumps and flow meters ensure that any problems with the chemical dispensing are immediately caught. The computerized cont... | 04/05/2005 |
| 6843592 | Asphalt additive mixing apparatus An apparatus and methods for blending and for delivering additives, for example, in pelletised form, to form thin surface dressings for the pavement construction industry. One or more additives may be weighed, blended and transferred for combination of the blended p... | 01/18/2005 |
| 6832133 | Method and plant for continuously producing a bituminous conglomerate A method of producing, in a continuous plant, a bituminous conglomerate containing aggregates and at least bitumen comprises the steps of drying the aggregates and mixing them with a measured amount of at least the incoming bitumen to form the bituminous conglomerat... | 12/14/2004 |
| 6786629 | Automated cement mixing system A method for continuously mixing a borehole fluid such as cement includes using a measurement of the solid fraction of a cement slurry as it is being mixed to determine the ratio of the solid and liquid components to be added to the slurry. A system for mixing the s... | 09/07/2004 |
| 6676862 | Method for forming lightweight concrete block A method and apparatus for efficiently forming individual building units is provided, generally includes providing a plurality of molds, each capable of simultaneously forming a plurality of building units. Batches of cementitious slurry are individually ... | 01/13/2004 |
| 6638344 | Plenum pulsed filter vent A filter vent system and method for separating entrained airborne particulate matter from the conveying fluid is disclosed, particularly as it relates to filling a storage vessel. The filter system employs a simplified, yet more efficient filter cleaning ... | 10/28/2003 |
| 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 |
| 6491421 | Fluid mixing system A method for continuously mixing a borehole fluid such as cement includes using a measurement of the solid fraction of a cement slurry as it is being mixed to determine the ratio of the solid and liquid components to be added to the slurry. A system for m... | 12/10/2002 |
| 6486475 | Method and apparatus for determining liquid absorption of aggregate A method of determining liquid absorption of an aggregate comprises providing a sample of the aggregate, adding liquid to the sample, subjecting the sample to a light source signal, monitoring a light reflected signal reflected from the sample and control... | 11/26/2002 |
| 6481883 | Apparatus and method for mixing cementitious materials having a cyclonic disc mixer and weighing means Apparatus for the rapid production of concrete having a grout slurry forming device, a cyclonic mixer for aggregate and a weighing device for feeding weighed amounts of aggregate to the cyclonic mixer. The slurry forming device including, subjecting fine ... | 11/19/2002 |
| 6352360 | Continuous mixing plant A continuous mixing plant that, for example simply continuously feeds the necessary materials while metering the amount thereof and drops these materials by gravitational force so that the mixed material may be manufactured continuously. As a means for at... | 03/05/2002 |
| 6186654 | Portable and modular batching and mixing plant for concrete and the like A portable concrete plant capable of producing up to 240 to 300 cubic yards or more of concrete per hour is disclosed in which two hauling trailers, a mixer trailer and an aggregate trailer, both serve as the transport vehicles and as foundation for the c... | 02/13/2001 |
| 6188936 | Gravimetric blender with operatively coupled bar code reader A method for weight blending of granular materials comprises at a remote site generating a command for desired operation of granular material weight blending apparatus; encoding said command into transportable time-stable machine readable tangible storage... | 02/13/2001 |
| 6183123 | Fiber additive concrete manufacturing method A method of manufacturing concrete with a fiber additive and other ingredients including the steps of mechanically manipulating a shipping container (36) having a gross amount of fiber additive (50) substantially greater than the an amount susceptible to ... | 02/06/2001 |
| 5967654 | Core sand preparation apparatus A binder system component metering apparatus for use in core sand mixing equipment comprising an elongate hollow vessel of substantially greater length than width and having upper and lower end portions, valves located in a lower end portion of the elonga... | 10/19/1999 |
| 5908240 | Apparatus for cement blending capable of forming a thick slurry An apparatus for cement blending includes a pressure vessel for containing a slurry and an agitating member which mixes the slurry within the pressure vessel. The pressure vessel includes a first inlet for connection to a source of pressurized driving flu... | 06/01/1999 |
| 5893639 | Apparatus for producing and simulataneously distributing cement mixes and the like 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 propor... | 04/13/1999 |
| 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 |
| 5797676 | Mobile concrete mixing system transportable onto trucks The present invention relates to a mobile concrete mixing system which substantially comprises: a feeding unit (2); a mixing unit (3); a conveyor belt; and a support structure (5) that embodies a first framework (18) supporting the conveyor belt (4), and ... | 08/25/1998 |
