Treatment Or Preparation Of Material Patents (Class 366/6)
  • Patent number: 10385302
    Abstract: A device that produces a sugar solution from cellulose-containing biomass includes: a horizontal reaction tank that includes a stirring shaft provided along a horizontal direction in the horizontal reaction tank and a stirring blade provided to the stirring shaft, the horizontal reaction tank being configured to obtain a saccharified slurry by reacting the cellulose-containing biomass with a saccharification enzyme by stirring the cellulose-containing biomass and the saccharification enzyme; a vertical reaction tank configured to obtain a saccharified liquid by saccharifying the saccharified slurry; a saccharified slurry feed line that connects the horizontal reaction tank and the vertical reaction tank; and a warming part provided around the horizontal reaction tank or on a wall surface of the horizontal reaction tank and heats the horizontal reaction tank.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: August 20, 2019
    Assignee: Toray Industries, Inc
    Inventors: Atsushi Minamino, Jumpei Kishimoto, Hiroyuki Kurihara, Katsushige Yamada
  • Patent number: 9695664
    Abstract: A system for high pressure proppant blending includes at least one high pressure pump coupled to a high pressure flow path, the high pressure flow path entering a wellhead. The system further includes a chamber storing a mixture of proppant and compressed gas. The system also includes a high pressure nozzle. An output of the high pressure nozzle is coupled to the high pressure flow path between the at least one high pressure pump and the wellhead. The chamber is coupled to an input of the high pressure nozzle.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: July 4, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Andres Rodela, Blake Burnette, D. V. Satyanarayana Gupta, William McCarty, Gaurav Agrawal
  • Publication number: 20140293728
    Abstract: A bag is used to provide an admixture for a hydraulic composition, wherein a wall of the bag includes a layer, the layer including a water-soluble polymer, and wherein an admixture is present in the wall of the bag.
    Type: Application
    Filed: October 2, 2012
    Publication date: October 2, 2014
    Inventors: Vincent Duveau, Philippe Thouilleux, Alain Jacquet, Emmanuel Villard, Sébastien Georges
  • Publication number: 20140241104
    Abstract: A method and system for system for rapidly determining the predicted strength of concrete prior to pouring the concrete is disclosed herein. The system and process provides for a database storing concrete family characteristics that may be updated as actual strength of poured concrete is determined. The process also allows construction workers to pour concrete with a keener knowledge of the resulting concrete strength.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 28, 2014
    Applicant: Command Alkon Incorporated
    Inventor: Command Alkon Incorporated
  • Patent number: 8764272
    Abstract: The invention provides ‘thixotropy’ monitoring, by measuring the reversible, time-dependent reduction in viscosity occurring when concrete is subjected to mixing, and employs a mixing drum and conventional slump monitoring equipment as used on ready-mix trucks. In one embodiment, the drum is rotated until concrete is completely mixed; the speed is altered, such as by increasing it to a predetermined level; and the energy required to rotate the drum (ER) is monitored; the maximum (ER-MAX) and minimum (ER-MIN) values are recorded in computer memory; and these values are compared to pre-determined (target) values. Rheology factors (including viscosity, yield stress, and/or thixotropy) can be adjusted accordingly by adding liquid component(s) into the mix. This method, suitable for delivery of highly fluid concrete speed such as SCC, can involve transit and placement rheology targets during monitoring.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: July 1, 2014
    Assignee: W. R. Grace & Co., -Conn.
    Inventors: Kati Hazrati, Ara A. Jeknavorian, Eric Koehler
  • Patent number: 8523424
    Abstract: A process for reducing the set time a plaster slurry. The process comprises the steps of, providing a pre-determined amount of water, providing a pre-determined amount of the plaster, mixing the water and the plaster together at a first time to form a slurry, and, re-directing a portion of the slurry formed at the first time to combine with slurry formed at a second time.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: September 3, 2013
    Assignee: BPB Limited
    Inventors: Ian Paul Wilkes, Danny Lynham
  • Publication number: 20130180435
    Abstract: The invention concerns a PROCESS for the preparation of cement/mortar/concrete (for simplicity: “cement”) compositions or systems, (hereafter “cement” compositions or systems for simplicity), of a general known type, in which the filler(s) is/are comprising or consist of “calcium carbonate-based filler(s)”, comprising at least one step where the said filler(s) is/are treated with an efficient treating amount of at least one treating agent consisting of or comprising superplastifier(s). The main purpose of this invention is to build a process aimed at providing improved, “High performance”, FLUID, cement or mortars or concrete systems or compositions having an improved compacity, an improved flowability, and globally speaking a definitely improved “workability”, and “regularity” of the properties of the final systems.
    Type: Application
    Filed: August 23, 2011
    Publication date: July 18, 2013
    Applicant: OMYA DEVELOPMENT AG
    Inventors: Michael Skovby, Pascal Gonnon
  • Patent number: 8442688
    Abstract: A system for monitoring plant equipment is provided. Another aspect provides an automated analysis system wherein software instructions operably compare sensor data to predefined valves and determine mechanical problems in multiple machines. In another aspect, a cement manufacturing system includes sensors for sensing movement conditions of cement making machines. A further aspect provides a central computer connected to vibration sensors associated with cement making machines, where software instructions perform real-time comparisons and machine performance determinations, based at least in part on sensed signals.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: May 14, 2013
    Assignee: Holcim (US), Inc.
    Inventor: Moheb Y. Loutfi
  • Publication number: 20130098268
    Abstract: A flow splitter can include an inlet conduit and first and second outlet conduits separated by a junction portion. The inlet conduit can include an inlet end and a junction end. The inlet conduit is disposed along a main flow axis extending between the inlet end and the junction end. The inlet end defines an inlet opening. The junction end defines first and second junction openings. The first junction opening is disposed in spaced relationship to the second junction opening. The junction portion is disposed at the junction end of the inlet conduit between the first and second junction openings. The junction portion includes a substantially planar wall region that is substantially perpendicular to the main flow axis. The flow splitter can be placed in fluid communication with a cementitious slurry mixer and a slurry distributor with the flow splitter disposed therebetween.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 25, 2013
    Applicant: UNITED STATES GYPSUM COMPANY
    Inventor: UNITED STATES GYPSUM COMPANY
  • Patent number: 8419266
    Abstract: A technique facilitates well servicing operations by utilizing a hopper system to introduce a dry additive into a mixing tank. The hopper system comprises a feeder and a hopper that delivers the dry additive into the feeder. The feeder, in turn, enables introduction of the dry additive into the cement mixing tank in a controlled manner. When the hopper system is used on a transportable cementing unit, the hopper system may be mounted on a cement mixing tank and also may incorporate a hopper that is both expandable to accommodate a greater amount of dry additive and contractible to facilitate transport.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: April 16, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Saravanan Velayutham, Hau Nguyen-Phuc Pham, Laurent Coquilleau, Stuart K. Taylor, Brian Goddard
  • Publication number: 20130033955
    Abstract: A process for making concrete includes treating water with ions and/or ozone to form treated water, and mixing the treated water with aggregate and cement. A system for making concrete includes means for treating charging water with ions, ozone and/or charged particles to form treated water, and means for mixing the treated water with aggregate and cement.
    Type: Application
    Filed: May 28, 2012
    Publication date: February 7, 2013
    Applicant: RRAM-Crete, LC
    Inventors: Richard Sealy Clayton, Robb Scott Miller, Michael D. Welch, Andy Max Cox, Jaiden Thomas Olsen
  • Patent number: 8308731
    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 an injector housing having a chamber for containing a first and a second bone cement component and a second housing having a chamber for containing a flexible wire mixing element. A plunger actuates within the chamber of the second housing to transfer the wire mixing element to the injector housing for mixing the first and second bone cement components to form the bone cement mixture. The plunger rotates the wire mixing element to mix the bone cement mixture. Thereafter, the wire mixing element is withdrawn from the injector housing and the injector housing is assembled with an injector handle. A plunger coupled to the injector handle advances through the injector chamber to dispense the bone cement mixture from the device.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: November 13, 2012
    Assignee: Cook Medical Technologies LLC
    Inventor: Arman H. Valaie
  • Publication number: 20120250446
    Abstract: System and method for dispensing liquids into concrete mixer drums, particularly suitable for use on concrete mix trucks, involve use of liquid admixtures nozzle that is separate from water conduit and water nozzle, the admixtures nozzle being aimed and focused to spray through drum opening with dispersion pattern substantially within air/concrete interface defined by minimal volume concrete contained within the drum; and the water conduit or nozzle having a dispersion pattern preferably whereby wash water hits a portion of the inner drum wall and a portion of the air/concrete interface defined by a maximum amount of concrete contained within the drum. In preferred embodiments, a check valve assembly is used to connect separate admixture and water lines, so that both admixture and water nozzles can be used simultaneously during purging operation.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Inventors: Robert E. Cook, James Klauke, Eric P. Koehler, Reynold Ramnarine, Mark F. Roberts
  • Patent number: 8272205
    Abstract: A process for sequestering carbon dioxide in fresh concrete from the exhaust emitted from the combustion of carbonaceous fuel in a concrete mixing truck is disclosed. In the process, exhaust from the engine containing carbon dioxide is redirected after passing through the required environmental controls to the concrete mixing chamber on the concrete truck. This carbon dioxide is allowed to physically mix with the ingredients producing fresh concrete. When the concrete is made from cementitious material which include calcium oxide, then the carbon dioxide may chemically bind with the calcium to form calcium carbonate and be permanently sequestered in the concrete product.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: September 25, 2012
    Inventors: Christopher J. Estes, Liv M. Haselbach
  • Publication number: 20120236677
    Abstract: A warm mix asphalt plant comprising a counter-flow drum, apparatus for precisely metering flows of A/C and water, an asphalt expander with no moving internal parts where a circular curtain of flowing clean water is mixed with a coaxial circular curtain of moving heated A/C to create asphalt foam which is heated and mixed inside a lower portion of the asphalt expander and then distributed to cover aggregate inside the counter-flow drum.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Applicant: TEREX USA, LLC
    Inventors: DAVID EMERSON, JOSEPH E. MUSIL
  • Publication number: 20120071884
    Abstract: A method for preparing a de-aired hydraulic setting hardenable bone cement for filling a boney void or cavity by combining a powder bone substitute material and a aqueous liquid component, the method comprising the steps of: (a) supplying said powder bone substitute material in a first evacuable container; (b) withdrawing air from the first container to form a de-aired powder bone substitute material; and, then (c) mixing the de-aired powder bone substitute material and the aqueous liquid component together.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 22, 2012
    Applicant: BIOCOMPOSITES LIMITED
    Inventors: John Joseph COOPER, Michael James BRAYFORD, David Russell WATERS
  • Patent number: 8133316
    Abstract: A process for preparing an asphalt mixture from recycled asphalt pavement (RAP), virgin aggregate, filler and first and second binder materials, is disclosed. The process comprises steps of transporting RAP through a first drum; transporting virgin aggregate through a second drum; adding a first binder material to the RAP in the first drum to provide treated RAP; supplying the treated RAP, the virgin aggregate, filler and a second binder material to a mixing zone; and mixing to provide the asphalt mixture.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: March 13, 2012
    Assignee: Shell Oil Company
    Inventors: Karel Poncelet, Gerrit Gijsbertus Van Bochove
  • Publication number: 20120020180
    Abstract: Method and system for motoring and obtaining information about quantity and characteristics of cementitious material In a rotating mixing drum. The present invention involves analysis of a sequence of values corresponding to a waveform reflecting the hydraulic pressure required to turn a concrete mixing drum at successive instances during rotation. Preferred embodiments involve the conversion of this time-domain data into the frequency-domain. Behavior of multiple harmonics can be examined in real time and further information obtained regarding physical properties of the concrete. Rheology or other properties can be adjusted by introducing a liquid into the concrete, based on a comparison between time-domain and/or frequency-domain values derived from a sample concrete in the drum and previously stored time-domain and/or frequency-domain values, which are preferably correlated with physical characteristics of concrete, such as slump, slump flow, load weight, and other factors.
    Type: Application
    Filed: March 23, 2010
    Publication date: January 26, 2012
    Inventors: Eric Koehler, Verdino Steve, Culley Robert
  • Publication number: 20110299356
    Abstract: A cement mixing method for mixing cement used in cementing oil wells casing and the mixer used in that method. The mixer employs a straight bulk cement inlet, five annular recirculation jets and five annular water jet orifices located downstream of the recirculation jets so that all of the jets discharge at an angle towards the mixing chamber and the discharge from the water jet orifices intersects with the flow from the recirculation jets. This five jet, intersecting flow design allows for more thorough wetting of the cement powder with a smaller, lighter, less expensive and more durable mixer that is less inclined to foul and easier to clean.
    Type: Application
    Filed: August 16, 2011
    Publication date: December 8, 2011
    Inventor: Thomas E. Allen
  • Patent number: 8066421
    Abstract: The disclosure relates to a method for effectively and efficiently adding sodium trimetaphosphate to a gypsum slurry. In one exemplary embodiment, the sodium trimetaphosphate is added at the same time as foam is added to the gypsum slurry through the foam waterline. In another exemplary embodiment, the sodium trimetaphosphate is added at the same time as additional water is added to the gypsum slurry through the gauging waterline. The sodium trimetaphosphate can be added to either or both waterlines in its dry form or in a diluted solution.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: November 29, 2011
    Assignee: National Gypsum Properties, LLC
    Inventors: Gopalakrishnan Sethuraman, Charles Dennis Price, John L. Phillips
  • Publication number: 20110235460
    Abstract: A system for mixing a liquid material and a solid material comprises (i) a base unit for the liquid material and the solid material; (ii) a liquid material supply; (iii) a solid material supply; (iv) a liquid/solid mixing output; (v) an injection unit connected to the liquid material supply and to the solid material supply and the injection unit injecting the liquid material and the solid material in the base unit; (vi) a separation and extraction unit simultaneously separating and extracting surplus gas arising from the mixing of the liquid material and the solid material.
    Type: Application
    Filed: April 11, 2011
    Publication date: September 29, 2011
    Applicant: Schlumberger Technology Corporation
    Inventor: Joel Rondeau
  • Publication number: 20110185977
    Abstract: The invention provides extruded animal litters and methods of making and using such litters. The animal litters comprise an extruded mixture of from about 10 to about 90% of one or more clays and from about 90 to about 10% of one or more starches. The use of starches to produce the extruded litters result in litters that are less dense than conventional clay-based animal litters and are therefore easier to transport and use.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 4, 2011
    Inventors: Dan Kenneth Dixon, Nathan Foster Huck
  • Publication number: 20110155373
    Abstract: A technique facilitates mixing operations by removing foaming that results from air entrained during mixing of constituents. A mixing system comprises a container body having an interior and an inlet through which material enters the interior for mixing. The container body also comprises a discharge through which the mixed material is delivered downstream. A mechanical foam breaker is disposed within the container body and extends upwardly a sufficient distance to extend through a surface level to which the material rises during mixing within the container body. The mechanical foam breaker is oriented to break down foam along the surface of the material as the material moves through the interior.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Inventors: Brian Goddard, Josh Rayner, Michael Woodmansee, Philip Zsiga
  • Publication number: 20110077778
    Abstract: An apparatus and method to measure and control the slump of concrete by monitoring sensor within the interior surface of a concrete mixer and a liquid flow meter. Data is analyzed by a computer processing unit to determine the slump of the concrete, liquid needed the quantity of concrete within the mixer, the amount of concrete poured, and the starting and ending time of the pour.
    Type: Application
    Filed: May 28, 2008
    Publication date: March 31, 2011
    Inventor: Berthold Berman
  • Publication number: 20100157720
    Abstract: A method for mixing a slurry for delivery to a downstream point comprises mixing a liquid source and a powder source at a mixing location to form the slurry, directing the slurry to at least one of a downstream point and a recirculation circuit, and introducing at least one vibration source to promote slurry homogenization and thorough mixing of the slurry for delivery to the downstream point, the vibration source located remote from the mixing location.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 24, 2010
    Inventors: Michael Woodmansee, Philip Zsiga, Josh Rayner, Rod Shampine
  • Patent number: 7740396
    Abstract: A system and method are provided for improving the operational performance of a moving cement mixer vehicle with a rotatable mixing drum by automatically stopping the rotation of the mixing drum at select moments. The system may include a sensor adapted to deliver a signal indicative of an operational parameter, such as steering angle of the vehicle, and a processing unit adapted to receive the signal from the sensor and deliver a control signal based on the signal for stopping rotation of the mixing drum.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: June 22, 2010
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: Charles E. Ross, William P. Amato, Michael D. Tober, Timothy J. Frashure
  • Publication number: 20100118640
    Abstract: A transportable concrete mixing plant is provided and includes a frame, a mixing drum for mixing concrete, a rail positioned above the mixing drum, and a carriage assembly mounted to the rail for positioning containers of dry premix concrete so that the premix may be dispensed from the containers into the drum. The concrete pump dispenses liquid concrete from the mixing drum and pumps it to a remote location, such as a work site.
    Type: Application
    Filed: May 1, 2009
    Publication date: May 13, 2010
    Applicant: DCL, Inc.
    Inventors: Reinhard Matye, Antero Tarvudd
  • Publication number: 20100054075
    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 an injector housing having a chamber for containing a first and a second bone cement component and a second housing having a chamber for containing a flexible wire mixing element. A plunger actuates within the chamber of the second housing to transfer the wire mixing element to the injector housing for mixing the first and second bone cement components to form the bone cement mixture. The plunger rotates the wire mixing element to mix the bone cement mixture. Thereafter, the wire mixing element is withdrawn from the injector housing and the injector housing is assembled with an injector handle. A plunger coupled to the injector handle advances through the injector chamber to dispense the bone cement mixture from the device.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 4, 2010
    Applicant: COOK INCORPORATED
    Inventor: ARMAN H. VALAIE
  • Publication number: 20100039879
    Abstract: A method for cementing a casing string in a borehole includes the steps of moveably coupling an outer sleeve on a casing segment; making up the casing segment with the outer sleeve into a casing string; running the casing string in a borehole; displacing a cement slurry into an annulus exterior to the casing string; and moving the outer sleeve relative to the casing string to agitate the cement slurry. A transfer device is used to rotate the outer sleeve against the cement slurry. Multiple outer sleeves may be received on the casing string at spaced intervals. In one embodiment, the transfer device may include a mechanical clutch through which the outer sleeves may be rotated. The mechanical clutch may be driven using an inner cementing string that provides a supply of cement slurry to the annulus.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 18, 2010
    Applicant: FRANK'S INTERNATIONAL, INC.
    Inventor: Jean Buytaert
  • Publication number: 20100000148
    Abstract: The present invention relates to concrete mulch and methods for making the same. The concrete mulch is made from crushed waste concrete, a colorant and a binder which colors the concrete pieces to look like natural mulch. The concrete mulch is available in a wide variety of shapes and sizes; however, it is preferred for the concrete mulch to look like natural rock, bark nuggets or natural mulch.
    Type: Application
    Filed: December 18, 2008
    Publication date: January 7, 2010
    Inventor: Michael D. Flynn
  • Publication number: 20090257303
    Abstract: A method and system for providing a homogenized slurry output comprises a container body defining an interior portion, a discharge for supplying the slurry from the container body to a downstream source and at least one inlet in fluid communication with a pressurized supply of slurry for introducing the slurry into the interior portion of the container body in a circulation pattern that creates a homogenized mixture of slurry in the interior portion of the body.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 15, 2009
    Inventors: Josh Rayner, Michael Woodmansee, Laurent Coquilleau, Philip Zsiga
  • Patent number: 7563017
    Abstract: A process for making reformed fiber from waste carpet material including separating into their individual strands, in well-graded lengths by mechanically disrupting, milling and granulating the waste carpet material and a further process for inserting and uniformly distributing such fibers throughout congealable materials such as asphalt and concrete, thereby providing improved physical properties to the resultant solids.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: July 21, 2009
    Inventor: Paul E. Bracegirdle
  • Publication number: 20090156725
    Abstract: The present invention provides a manufactured aggregate material that converts waste materials and/or recyclable materials into construction material. By mixing waste materials with an acid solution and a metal oxide solution, any harmful contaminates in the waste materials are encapsulated and rendered into hard pellets that are suitable for use in conglomerates or composites such as concrete. The manufactured aggregate material may be adjusted for moisture content, density, heat capacity, and other parameters.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 18, 2009
    Applicant: ENVIROPRODUCTS INTERNATIONAL LLC
    Inventor: Jonathan E. Hampton
  • Patent number: 7374331
    Abstract: A method and apparatus for reducing the viscosity of a fluidic cementitious mixture, the apparatus including a high voltage source, first and second spaced electrode members electrically connected to the high voltage source and (when energized) define an electrostatic field therebetween. The positioning of particulate cementitious material within the electrostatic field imparts like charges to the cementitious particles. By establishing such an electric field and positioning cementitious particles within the field, the particles may be charged prior to mixing into a hydrated cementitious slurry. Such charging decreases the viscosity and/or enhances the flowability of the hydrated cementitious slurry.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: May 20, 2008
    Inventor: David M. Goodson
  • Publication number: 20080112256
    Abstract: An adjustably supported mortar mixer includes a frame which supports the mixer for processing and mixing mixable components at selected vertical heights. The frame is supported by three or four adjustable supports with either two or four of the adjustable supports arranged in a substantially A-frame configuration. Adjustment of the supports in the A-frame configuration simultaneously effects, in a single action, both a vertical displacement and a horizontal displacement of the corresponding support base so as to automatically provide an increased mixer support width at an increased mixer height, and a decreased mixer support width at a decreased mixer height. By virtue of the ability to adjust simultaneously both the vertical and horizontal displacement with a single action, the method of adjustably supporting the mixer is easier, faster, and safer.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventor: Stephen C. Vandewinckel
  • Patent number: 7050886
    Abstract: 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 control system may be operable to control exact batch configurations of concrete and aggregate in conjunction with the chemical dispensing, as well as provide precise mixture control and recording of the various components.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: May 23, 2006
    Assignee: Port-A-Pour, Inc.
    Inventors: Neil G. Oberg, Jerome J. Doherty
  • Patent number: 6971783
    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.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: December 6, 2005
    Assignee: Keanes Limited
    Inventor: Frank Owen
  • Patent number: 6971784
    Abstract: A process for effectively mechanically disrupting fiber pellets produced from waste carpet material into their individual strands and for insertion and uniform distribution of such fibers through congealable materials such as asphalt and concrete, thereby providing improved physical properties to the resultant solids and, by providing a use for such waste carpeting, minimizing their deposition in landfills.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: December 6, 2005
    Inventor: Paul E. Bracegirdle
  • Patent number: 6860313
    Abstract: A device for preparing moulding sand. The device includes a mixer configured to operate under at least a partial vacuum and at least one feeder to introduce components to be mixed. An inlet in the mixer is of sufficient size to allow rapid introduction of the components into the mixer from the feeder. The combination of large inlet opening and a pressure differential between the mixer and the feeder significantly reduces the time required to fill the mixer. In addition, the presence of the pressure differential made possible by the vacuum in the mixer reduces the likelihood that airborne contaminants resident in the mixer will migrate outside the mixer. Optional moveable conveyor chutes minimize contact of airborne contaminants with adjacent equipment, while optional mixing tools facilitate the introduction of powdered additives into the mixer.
    Type: Grant
    Filed: June 16, 2001
    Date of Patent: March 1, 2005
    Assignee: Maschinenfabrik Gustav Eirich GmbH & Co. KG
    Inventors: Uwe Greissing, Dieter Adelmann, Paul Eirich, Herbert Durr, Winfried Diem
  • Publication number: 20040208079
    Abstract: A method and apparatus for mixing viscous material, includes placing ingredients of the viscous material within a vessel. An air tight seal is created about the vessel. A vacuum is pulled on the vessel, and the ingredients are mixed within the vessel to form the viscous material while under vacuum. The vacuum is sufficient to reduce the amount of total air content in viscous material to between 0.9% and 0.1% by volume prior to an air entraining agent being added to the viscous material. Once air entraining agent is added, further mixing of the ingredients forms entrained air content in the final viscous material, while the amount of entrapped air in the final viscous material remains reduced.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 21, 2004
    Inventor: Gregory S. Hein
  • Patent number: 6780367
    Abstract: A method for preparing a concrete article comprised of concrete having therein a reinforcing fiber, where at least about 50 percent of the reinforcing fibers are frayed only at an end or ends of the reinforcing fibers, may be made by mixing concrete, water and a reinforcing fiber for a sufficient time to fray the ends of at least 50 percent of the fibers and curing the mixture to form the concrete article.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 24, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Aleksander J. Pyzik, Kenneth B. Stewart, Jr., Hari Reddy, Kwanho Yang, Sharon M. Allen, Ted A. Morgan
  • Publication number: 20030142579
    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.
    Type: Application
    Filed: January 29, 2002
    Publication date: July 31, 2003
    Inventor: Jeffrey L. Throop
  • Patent number: 6591891
    Abstract: Given green sand is obtained by a mixing operation that is carried out for a short period of time. Discarded sand is supplied as supplementary sand to a sand processing line, so that molding sand can be recycled. Green sand for a molding is used for facing sand or the pocket sand. Bentonite-covered sand is made by mixing reproduced sand, new sand, and discarded sand or any or all of them. The bentonite-covered sand is added to collected sand to supplement it. Also, the bentonite-covered sand is mixed with water, and used for facing sand or the pocket sand.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: July 15, 2003
    Assignee: Sintokogio Ltd.
    Inventors: Ryoji Kanayama, Yasunori Yoshida, Kuniyasu Mori, Kazuo Sugimoto, Yukikazu Ando
  • Publication number: 20030021178
    Abstract: A rotary stop cock is formed so that in a first selected position it can separate a plurality of compartments, in a second selected position can allow for the flow of material from one or more upstream compartments into a downstream compartment, while also allowing air to vent from the downstream compartment through the stop cock and out to the atmosphere, and in another selected position can allow for the flow of material from what was the downstream compartment to what was the one or more upstream components without venting any of the compartments.
    Type: Application
    Filed: July 24, 2001
    Publication date: January 30, 2003
    Inventors: Gerald W. Hagel, Scott Retterer
  • Patent number: 6030111
    Abstract: Molding sand of a used greensand mold is recycled by adding water and binder to sand particles fatigued by heating applied by a molten metal during molding and segregated from vigorous molding sand not directly heated by the molten metal and mixing the refreshed molding sand particles with the vigorous molding sand.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: February 29, 2000
    Assignee: Mazda Motor Corporation
    Inventors: Minoru Tokuyoshi, Toshisaburo Kimura, Takashi Suginaka
  • Patent number: 6015225
    Abstract: The method of treating an aqueous, cementitious slurry, to enhance fluidity, that includes providing a container for the slurry and effecting movement of the slurry via an impeller, in the container, and locating at least one vibrator in the interior of the vessel, and operating the vibrator to transmit vibration to the moving slurry.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: January 18, 2000
    Assignee: Matrix Master Inc.
    Inventor: Richard A. Williams
  • Patent number: 5813754
    Abstract: A container is provided for slurry; an impeller is provided to effect slurry movement in the container; and a vibrator is operated for transmitting sufficient vibration to the moving slurry to lower the water/cement ratio to a low level, and at a water temperature within a specified range. The location of vibration transmission from the vibrator can be adjusted along the wall of the container.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: September 29, 1998
    Assignee: Matrix Master, Inc.
    Inventor: Richard A. Williams
  • Patent number: 5785419
    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.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: July 28, 1998
    Inventor: Paul A. McKelvey
  • Patent number: 5564823
    Abstract: A method and apparatus to simplify the measurement of lightweight concrete components and to recycle waste materials that result from lightweight concrete block manufacture. The method involves separating coarse and fine components of the waste. The apparatus uses several devices, separately or in combination, to separate the components, such as a sieve, auger, and blower. The coarse components are conveyed by auger, gravity or other means to be measured by weight in a first hopper. The fine components are conveyed by gravity, blower, auger or other means to be measured by volume in a second hopper. Fresh materials may be added to both hoppers. The materials from both hoppers are then mixed together in a primary mixing chamber and finally conveyed into molds for curing before use.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: October 15, 1996
    Assignee: Rastra Technologies, Inc.
    Inventor: Karl Holik
  • Patent number: 5507572
    Abstract: A method and apparatus for providing a continuous product stream of lime slurry to a job site which is located remote from a permanent lime production plant utilizes a primary and auxiliary tank which are mounted on a portable frame structure. Lime and water are mixed in the primary tank to form a lime slurry. The lime slurry is then introduced into the auxiliary tank. A product stream of lime slurry is drawn from the primary tank until it is depleted. Lime slurry is then drawn from the auxiliary tank to supply a continuous stream of lime slurry to the job site while the primary tank is being refilled with lime and water to form a second lime slurry. The second lime slurry is then introduced into the auxiliary tank so that it is filled again and a second product stream of lime slurry is drawn from the primary tank. The process is repeated until a desired amount of lime slurry is supplied to the job site.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: April 16, 1996
    Assignee: Chemical Lime Company
    Inventors: Patrick J. Shields, Craig D. Girard, James R. Scholl