With Liquid Charge Patents (Class 366/40)
  • Patent number: 9757888
    Abstract: A method for manufacturing an encapsulating material sheet for a solar battery of the invention includes a step of producing an additive-containing pellet by soaking an additive A into a pellet including a polyolefin-based resin as a main component, a step of injecting the additive-containing pellet into a cylinder from a supply opening in an extrusion molder, and melting and kneading a resin composition including the polyolefin-based resin and the additive A in the cylinder, and a step of molding by extrusion the resin composition from a die in the extrusion molder into a sheet shape.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: September 12, 2017
    Assignee: MITSUI CHEMICALS TOHCELLO, INC.
    Inventors: Hiroyuki Kuroda, Takatoshi Yaoita, Shigeyuki Shishido, Yukihiro Iwasaki, Takafumi Mori, Katsuhiko Funaki, Hirofumi Zenkoh
  • Patent number: 8960990
    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: Grant
    Filed: March 23, 2010
    Date of Patent: February 24, 2015
    Assignee: Verifi LLC
    Inventors: Eric Koehler, Steve Verdino, Robert Culley
  • Patent number: 8613543
    Abstract: An on-board auxiliary tank system for supplying makeup water and chemical additives to a transit concrete mixing vehicle is disclosed. The system includes a water tank having a sloped, generally concave upper section, spaced sides and a bottom designed for deployment nested beneath a mixing drum of a transit concrete mixing vehicle and defining a water compartment and a pair of elongate support block members for supporting the water tank situated beneath the sides of the tank and adapted to be attached thereto by removable latch fasteners. The block members include elements suitable for fastening the blocks to a concrete mixing vehicle.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: December 24, 2013
    Assignee: McNeilus Truck and Manufacturing, Inc.
    Inventors: Thomas G. Lindblom, Bryan S. Datema, Ryan J. Roudebush
  • Publication number: 20130265843
    Abstract: A transportable concrete mixing plant is provided and includes a frame, a mixing drum for mixing concrete, a conveying system having at least one rail for moving a pre-measured quantity of premix concrete to the mixing drum, and a supply hopper for directing the pre-measured premix concrete into the mixing drum. The rail forms a support track that is traversed by the supply hopper, which travels from a dispensing position near the mixing drum to a loading position spaced from the mixing drum. Optionally, a concrete pump dispenses flowable concrete received from the mixing drum and pumps it to a remote location, such as a work site.
    Type: Application
    Filed: September 24, 2012
    Publication date: October 10, 2013
    Inventor: Reinhard Matye
  • 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
  • Publication number: 20130021867
    Abstract: A concrete mixer truck includes: a driving device that drives a mixer drum to rotate; a pressure sensor that detects a pressure of the working fluid in the driving device; a material introduction determination unit that determines whether or not a material for generating the mixed concrete has been introduced into the mixer drum; a pressure determination unit that determines whether or not the pressure of the working fluid detected by the pressure sensor has fallen to a set pressure set in advance in accordance with a carrying amount and a fluidity of the mixed concrete after the introduction of the materials for the mixed concrete into the mixer drum; and a notification device that notifies an operator that the pressure of the working fluid in the driving device has fallen to the set pressure on the basis of the determination made by the pressure determination unit.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 24, 2013
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventor: Hiroyuki SHIMIZU
  • Patent number: 8201986
    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: Grant
    Filed: February 17, 2009
    Date of Patent: June 19, 2012
    Assignee: Terex USA, LLC
    Inventors: David Emerson, Joseph E. Musil
  • 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
  • Patent number: 7645064
    Abstract: A mixing and delivery machine for flowable materials having on-site and towable mobility for mixing, hydrating, and delivering an admixture such as cementious mix, concrete, binder, graveled sand, mold sand and various other mixtures via an extended auger and elevatable hopper is used to facilitate both loading and releasing the hopper contents into the feed end of the auger. The auger is driven by a primemover and a wheel set on the machine facilitates the raising and lowering of the delivery end of the mixing auger.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: January 12, 2010
    Assignee: Onemanconcrete LLC
    Inventors: Alvaro A. Cestti, Tommy Lee Foster
  • Publication number: 20090154287
    Abstract: An on-board auxiliary tank system for supplying makeup water and chemical additives to a transit concrete mixing vehicle is disclosed. The system includes a water tank having a sloped, generally concave upper section, spaced sides and a bottom designed for deployment nested beneath a mixing drum of a transit concrete mixing vehicle and defining a water compartment and a pair of elongate support block members for supporting the water tank situated beneath the sides of the tank and adapted to be attached thereto by removable latch fasteners. The block members include elements suitable for fastening the blocks to a concrete mixing vehicle.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 18, 2009
    Applicant: McNEILUS TRUCK AND MANUFACTURING, INC.
    Inventors: Thomas G. Lindblom, Bryan S. Datema, Ryan J. Roudebush
  • Patent number: 7530728
    Abstract: 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 closed valve unit may be in fluid communication with, and removably connected to, the flowmeter unit. A control unit may be provide that may monitor the flowmeter unit and electronically control the opening and close of the normally closed valve unit. A switch may be also provided that may electrically communicate with the control unit. The activation of the switch being operable to cause the normally closed valve to open and result in the flow of water into a concrete mixing drum that is in fluid communication with the normally closed valve.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: May 12, 2009
    Inventor: Lars Rosaen
  • Patent number: 7267473
    Abstract: A system for transferring coloring agents for concrete to a ready mix truck or the like, includes a tank for receiving coloring agents. The tank includes lines for supplying it with water and a pump for transferring the coloring agents to the ready mix truck through a discharge line.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: September 11, 2007
    Assignee: Solomon Colors, Inc.
    Inventor: Charles Kreutzer
  • Patent number: 7258710
    Abstract: An Advanced Maritime Emissions Control System (AMECS) includes several Exhaust Intake Bonnets (EIBs) of different size and/or shape, an Emissions Capture System (ECS), and an Advanced Maritime Emissions Control Unit (AMECU) mounted on an Unpowered Seagoing Barge (USB). The EIB includes a cage formed by downward curved ribs, a shroud which is lowerable to cover the ribs, a belt near a lower edge of the EIB for retaining and sealing the EIB to a stack, and a mechanism for tightening the lower edge of the EIB (and thus the belt) around the stack. The ECS lifts one of the several EIBs onto the stack of an Ocean Going Vessel (OGV). Exhaust from the stack is drawn through a large diameter duct to the AMECU. The AMECU processes the exhaust through multiple treatment stages. The stages include pre conditioning the exhaust, oxidizing, reducing, polishing, and precipitating.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: August 21, 2007
    Assignee: Advanced Cleanup Technologies, Inc.
    Inventors: Salvador Caro, Henning Ottsen, John G. Powell
  • Patent number: 6910796
    Abstract: A process and equipment for producing multi-color concrete products, including architectural concrete blocks, concrete bricks, modular concrete products that are suitable for use in landscaping applications, such as retaining wall blocks, concrete pavers, and concrete slabs. The invention includes a spray mechanism that sprays liquid pigment onto concrete discharged from a hopper. The concrete then proceeds to a blending mechanism which blends the pigment into the concrete to produce a multi-color concrete blend. The concrete blend is then used to produce multi-colored concrete products.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: June 28, 2005
    Assignee: Anchor Wall Systems, Inc.
    Inventors: Paul W Bailey, Glenn C Bolles, Jeffrey C. Bader, David Matthew LaCroix
  • Patent number: 6905048
    Abstract: 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 support frame and can be rotated from a position in which it receives solid material from the supply source to a dispensing position in which it dispenses the solid material into a receptacle below. A liquid metering and dispensing container dispenses a predetermined volume of liquid into the receptacle for mixing with the solid material. The invention is particularly useful for dispensing predetermined volumes of sand and water into a cement mixer for mixing with mortar.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 14, 2005
    Inventor: Archie J. Harris
  • Patent number: 6726736
    Abstract: A system and method for reducing the emissions from a dust generation station, such as a metal cutting station, can be easily transported from location to location. The system uses a mobile carrier which supports a separator, such as a baghouse, as well as a telescopically adjustable duct. A hood, which is attached to the duct and serves to contain exhaust gases generated at the dust generating station, is capable of rotation about the hood pivot point. An exhaust fan serves to induce flow of the exhaust gas from the hood, through the duct and across the separator. A mobile, emission-free metal cutting system incorporates the system for reducing emissions as well as a mobile transport cutting machine.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: April 27, 2004
    Assignee: International Mill Service, Inc.
    Inventors: Jean-Luc Koclejda, Michael Simek
  • Patent number: 6645275
    Abstract: A bag house is mounted on a portable trailer and has a tube sheet with depending filter bags in part defining a first plenum for receiving a gas stream with fines and a second plenum for receiving clean gas from the filter bags. The fines are collected in one or more hoppers below the filter bags. A screw conveyor in each hopper has reverse flighting adjacent opposite ends for conveying separated fines longitudinally along and from adjacent opposite ends toward a central location intermediate the length of the housing. An elevation conveyor having an inlet located in the central location conveys the collected separated fines out of the housing to an external outlet for discharge into a surge operator.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: November 11, 2003
    Assignee: Gencor Industries, Inc.
    Inventor: David F. Brashears
  • Patent number: 6568842
    Abstract: A continuous preparation of calcium hydroxide slurry can be made on a mobile apparatus that uses an eductor to initially combine metered flows of calcium oxide and water. The calcium hydroxide slurry is retained in a deaerating sump and then pumped into a serpentine centrifugal mixer so that the reaction of the calcium oxide and the water is safely complete. Because the apparatus allows the calcium hydroxide slurry to be recirculated into the deaerating sump, the slaking process can continue even when it is necessary to pause the discharge of slurry to change transport tankers.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: May 27, 2003
    Assignee: United States Lime and Minerals, Inc.
    Inventor: Richard D. Murray
  • Publication number: 20010048636
    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.
    Type: Application
    Filed: May 5, 1999
    Publication date: December 6, 2001
    Inventor: HANS RICHARD WEBER
  • Patent number: 6220837
    Abstract: A progressing cavity pump adapted for use in pumping liquid/solid mixtures with a solid content of about 50% has a single start helical rotor and a two start helical stator bore. The ratio of the eccentricity of the rotor to its minor diameter is about 1:4.9. The ratio of the eccentricity of the rotor to the stator lead is about 1:13.3. The pump may be truck mounted and used for pumping explosives.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: April 24, 2001
    Assignee: Mono Pumps Limited
    Inventor: Roger Lawton Naylor
  • Patent number: 5915833
    Abstract: A cooling apparatus for used foundry sand provided with a homogenizing and conveying apparatus in a constant vacuum with controlled water inflow and a suction point for the water vapor, the water evaporating due to the reduced pressure draws the heat of evaporation from the sand, the apparatus having a condenser in which the vapor condenses into water which is cooled and re-used, and coupled locks provided on the inlet and outlet of the conveying apparatus, through which the sand enters and leaves the reduced pressure area.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: June 29, 1999
    Assignee: Maschinenfabrik Gustav Eirich
    Inventor: Ernst Otto Kruse
  • Patent number: 5795060
    Abstract: An apparatus for high capacity production of high-fluidity, colloidally mixed cement slurry. Water and cement dust are combined at metered rates by a premixing assembly which discharges into a mixing tub. The high-speed, high-shear pump recirculates the material through the tub to produce the colloidally-mixed slurry. The high-fluidity slurry may be provided to a second pump, preferably of the positive-displacement, progressive-cavity, rotor-stator type, for supplying the slurry at a metered rate. Finished foam material may also be provided to the slurry metering pump at the metered rate, so the materials are mixed to form a foamed cement grout in which the weight and quality of the material is precisely adjustable.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: August 18, 1998
    Inventor: Patrick J. Stephens
  • Patent number: 5718508
    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.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: February 17, 1998
    Assignee: Haltec Corporation
    Inventor: Harold V. Williams
  • Patent number: 5702181
    Abstract: An apparatus for controlling the flow of water to a pug mill. A water supply system is connected to the pug mill for providing a flow of water to the pug mill. The water supply system includes an inlet line connected to a supply of water; a pump connected to the inlet line; an outlet line connected between the pump and the pug mill; a return loop connected between the outlet line and the inlet line; and bypass means for selectively controlling the flow of water between the pug mill and the return loop. The invention also includes a control system having a moisture sensor for providing a signal representative of the moisture level of the clay feed material. A flow transmitter is located between the water supply and the pug mill for providing a signal representative of the water flow to the pug mill. A control valve is located between the water supply and the pug mill for controlling the flow of water to the pug mill.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: December 30, 1997
    Inventor: Ernest H. Wright
  • Patent number: 5609416
    Abstract: A small batch mixer particularly suited for preparing small quantities of mixture blends dry powdered material with an aggregate and a liquid. The ingredients may be cement, sand, and water. The batch mixer has two screw augers. The first auger feeds dry mix into an elongated mixing chamber of constant diameter. The second auger mixes the dry and liquid mix constituents, and conducts blended mixture to a discharge port located at the end of the elongated mixing chamber. The blade of the second auger is formed in three sections. In respective order, these sections include a first section wherein the blade is configured as a screw auger; a second section wherein the blade has intermittent gaps, thereby forming paddles pitched to urge the mixture onward to the third section; and a third section which, like the first section, includes a blade configured as a screw auger. The liquid is metered by a valve controlled in accordance with the feed rate of the solid constituents.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: March 11, 1997
    Inventor: Donald L. Duckworth
  • Patent number: 5570953
    Abstract: A method of forming a mixture of powdered material and water includes the step of providing a hopper, a holding tank, a tube intermediate the hopper and the holding tank, and an air-powered auger arranged to feed powdered material from the hopper through the tube to the holding tank. The method proceeds by adding powdered material to the hopper, supplying water to the tube, and operating the auger to feed the powdered material into the tube, to mix it with water in the tube, and then to push the mixture out of the tube to the holding tank. For drywall texturing applications, the mixture may then be delivered from the holding tank under pressure to a spray nozzle. An apparatus for forming a mixture of powdered material and water includes a hopper, a holding tank, a tube intermediate the hopper and the holding tank, and an auger extending from the hopper into the tube.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: November 5, 1996
    Inventor: Harlen E. DeWall
  • Patent number: 5513911
    Abstract: In a mixing drum (16) of a vehicle mixer is supported a coaxial pipe (24) which together with a closure element (36) and a feeding hopper (42) forms a constructional unit. The pipe (24) is supported by two bearings of the mixing drum (16) so as to be relatively rotatable and longitudinally displaceable. The closure element (36) serves for closing a tail opening (20) of the drum (16) and can be adjusted axially with the central pipe (24) by means of an adjusting device in order to open or close the tail opening (20) of the drum. The pipe (24) extends nearly over the entire length of the mixing drum and ensures the vibration-free bearing of the closure element so that between it and the drum mouth during driving, no relative shifts can occur which would damage the drum mouth sealing. The constructional unit can be pulled as a unit from the mixing drum so that maintenance work can readily be carried out.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: May 7, 1996
    Assignee: Stetter G.m.b.H.
    Inventor: Friedrich Schwing
  • Patent number: 5470147
    Abstract: A portable continual mixer blends dry powdered material with an aggregate and a liquid. The ingredients may be cement, sand, and water. The batch mixer has two screw augers. The first auger feeds dry mix into an elongated mixing chamber, and has its own electric motor and speed control. The second auger mixes the dry and liquid mix constituents, and conducts blended mixture to a discharge port located at the end of the elongated mixing chamber. The blade of the second auger is formed in three sections. In respective order, these sections include a first section wherein the blade is configured as a screw auger; a second section wherein the blade has paddles pitched to urge the mixture onward to the third section; and a third section which, like the first section, includes a blade configured as a screw auger. The liquid is metered by a valve controlled in accordance with the feed rate of the solid constituents. A predetermined proportion of dry and liquid constituents is thus maintained.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: November 28, 1995
    Inventor: Donald L. Duckworth
  • Patent number: 5466063
    Abstract: This invention concerns a device for continuously injecting liquid additives into a fluid.The device includes a jet eductors system for prediluting the additives.Applications in the oil and related industries, the building industry and similar. FIG.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: November 14, 1995
    Assignee: Dowell Schlumberger Incorporated
    Inventors: Georges Poyet, Frederic Badier, Dominique Guillot
  • Patent number: 5419633
    Abstract: Improved paddle mixer, including a stationary drum solid to a support frame, with a vertical shaft engaged with a motor-reducer unit and provided with a plurality of transverse arms to each of which at least a paddle is fixedly or otherwise rotatively connected, wherein each of the paddles, being fixed with respect to the relevant support arms, is made up of two like plates disposed at the free end of the corresponding arm and between which a rubber element is interposed so that, by the rotation of the shaft, that is, during the blending of the materials introduced inside the drum, the rubber element provides for scraping the side or respectively bottom wall of the drum.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: May 30, 1995
    Assignee: Imer International S.p.A.
    Inventors: Patrizio Lorenzetti, Giampiero Strada, Fabrizio Papini
  • Patent number: 5397177
    Abstract: An asphalt production plant with a drum dryer having two burners and expanded exhaust gas exit area. The dryer has a rotatable dryer drum with an inlet end and a discharge end. A burner is positioned at each end of the dryer drum to produce a stream of hot gases both parallel with and counter to the movement of aggregate through the dryer drum. A dust chamber surrounds a medial dust section of the dryer drum. The dust section of the dryer drum communicates with the dust chamber through slots and perforated angle plates to produce an increased area for the exit of exhaust gases. In addition to the drum dryer, the plant comprises an aggregate feed system for delivering aggregate into the dryer, an exhaust system, a drum mixer, a recycle feed system, a reservoir of bituminous fluid and an asphalt bin. A drag conveyor is provided to transfer aggregate from the dryer into the drum mixer. Recycle material and dust from the exhaust system may be introduced into the drag conveyor as well.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: March 14, 1995
    Inventor: George W. Swisher, Jr.
  • Patent number: 5330265
    Abstract: A process using an improved apparatus for mixing and cooling molding sand.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: July 19, 1994
    Assignee: Hartley Controls Corporation
    Inventors: James P. Keating, Jr., Leslie C. Knopp
  • Patent number: 5268111
    Abstract: A separation and reclamation apparatus for separating a first discrete-phase solids material from a fluid mixture including, in addition, a second discrete-phase solids material and a continuous-phase carrier fluid, has a unitary vessel having a discharge tank connected to a receiving tank and in fluid communication therewith through an opening on the bottom side wall of the receiving tank. The receiving tank both mixes and transports the mixture. A controller actuates a door over the opening for transport of the first discrete-phase solids material out of the receiving tank into the discharge tank via a conveyor having an open discharge end higher than the top of the receiving tank. The apparatus includes a pump arranged to intake material from the discharge tank from contents remaining in the vessel after removal of the first discrete-phase solids.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: December 7, 1993
    Inventors: Jeffrey L. Metz, Joel R. Metz, Lawrence J. Glendenning
  • Patent number: 5232282
    Abstract: A food waste mixing and heat treating vehicle used in feeding hogs has a wheeled chassis. A mixing drum is rotatably mounted on the chassis having an inner wall forming a mixing and heating cavity and having an opening into the cavity. Means are provided for rotating the mixing drum. Two opposing helical mixing blades are each affixed along the inner wall from the opening into the cavity for drawing the food waste into the cavity from the opening, mixing the food waste in the cavity and evacuating the food waste out of the cavity through the opening. Steam injecting means are along the inner wall within the cavity for injecting steam through the food waste for heat treating the food waste for later feeding hogs after the food waste has cooled. The method involves the collecting, heat treating and feeding of the food waste to hogs with the vehicle. The hog lot for raising and feeding hogs the heat treated food waste comprises a plurality of adjacent elongate pens with a juxtaposed feed pen there along.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: August 3, 1993
    Inventor: Daniel E. Johnson
  • Patent number: 5213414
    Abstract: The apparatus allows mixing of a solid and a fluid continuously to facilitate downhole operations, especially gravel packing. The apparatus comprises a solids hopper, with preferably an internal auger, to meter the solids flowrate. The solids drop into a second feeder which empties into a mixing chamber. Liquid can be directed into an annular space formed in the mixing chamber around the periphery of the second auger, or could be piped into the second auger itself. A triplex pump is connected to the mixing chamber and draws the mixed solid and fluid and pumps it to sufficient pressures for use in a wellbore.
    Type: Grant
    Filed: October 24, 1990
    Date of Patent: May 25, 1993
    Assignee: Baker Hughes Incorporated
    Inventors: Bennett M. Richard, Michael H. Johnson
  • Patent number: 5203628
    Abstract: A portable system for on-site batch mixing of cementitious materials, such as mortar and grout, includes a batch mixing machine for metering and mixing cement, sand and water, a cement storage silo sized to hold at least one commercial delivery truckload of cement, and a pair of sand supporting ground pads. The large cement storage silo significantly reduces the manpower and equipment costs associated with the overall batch mixing process, and the sand support pads operate to prevent dirt contamination of the cementitious mixture. The water storage portion is provided with a simplified, floatless fill level control system and an improved water heating system which significantly reduces water temperature stratification. A specially designed pressurized shaft bearing/seal structure provided on the batch mixer portion of the mixing machine reduces grease and seal maintenance and functions to essentially preclude entry of cementitious material into the shaft bearing.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: April 20, 1993
    Assignee: Hamm Family Partnership
    Inventor: Alton B. Hamm
  • Patent number: 5178455
    Abstract: The present invention relates to a method and a system for recycling wash residue of ready mixed concrete include the steps of condensing used cement sludge to a predetermined concentration, storing the condensed sludge, sampling the stored sludge and determining the unhydration ratio of cement contained in the sludge, and weighing the stored sludge based on the determined unhydration ratio of cement in order to prepare a new batch of ready mixed concrete or mortar.By determining the unhydration ratio of cement contained in the sludge which has been condensed to a predetermined concentration, it becomes possible to accurately know the ratio of cement contributing as cement and its ratio contributing as the aggregate in a new batch of ready mixed concrete. A new batch of ready mixed concrete can be prepared by weighing the amount of the sludge on the basis of the determined unhydration ratio. The ready mixed concrete thus prepared will have a desired hardening strength and drying shrinkage.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: January 12, 1993
    Assignee: Neotec Co., Ltd.
    Inventors: Yukio Ohsaki, Fumio Iwase, Yoshihisa Nakanishi
  • Patent number: 5137365
    Abstract: A water metering system for a concrete mixing truck includes a secure pulsing type cold water meter connected to meter water applied to the mixing drum of the truck. The meter pulses an electrically resettable counter mounted in a secure housing in the cab of the truck. The counter is reset by a key switch mounted in the housing. A manually resettable counter may be mounted to the rear of the truck, to be energized by the meter pulses.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: August 11, 1992
    Assignee: Blend-Rite Industries, Inc.
    Inventor: Milton D. Westrich
  • Patent number: 5118197
    Abstract: An apparatus and a process for mixing water from a pressurized source and an additive or admixture for a cementitious composition in a mixing chamber comprising introducing, in the form of a jet, water under a first pressure, which is above atmospheric pressure, and introducing the additive under a second pressure between atmospheric pressure and the first pressure, the amount of the additive that is introduced to the mixing chamber being controlled by means regulated by the pressure of water.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: June 2, 1992
    Assignee: Sandoz Ltd.
    Inventor: Peter Ellenberger
  • Patent number: 5073030
    Abstract: In a dryer apparatus including an elongated rotatable drum having an input end and an output end, a burner for directing hot gases into the input end of the drum, and an aggregate feed mechanism for supplying aggregate particles into the drum adjacent the input end and for conveying the aggregate particles toward the output end, an assembly adapted to introduce reclaimed asphalt pavement particles into the dryer includes an inner drum for introducing reclaimed asphalt pavement particles into the elongated drum at a position adjacent the output end of the elongated drum and for moving the recycled asphalt pavement particles within the elongated drum in a direction counter to the direction of flow of the hot gases so that the hot gases heat the recycled asphalt pavement particles during travel of the recycled asphalt pavement particles within the inner drum assembly.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: December 17, 1991
    Inventor: Edgar N. Banks
  • Patent number: 4997284
    Abstract: Process and apparatus are provided to distribute specified, premixed quantities of dry mortar mix and cement to a construction site. Bulk bags and a hopper apparatus are transported to the construction site and utilized with a forklift and a mixer device. The hopper apparatus is adjustably assembled and is constructed and arranged to be hand operable to efficiently meter homogeneous predetermined quantities of the mixture out of a discharge chute. The premixed contents in the bulk bags are dumped into the hopper apparatus and discharged in metered quantities into the mixer device. A water dispensing structure is provided to discharge a predetermined volume into the mixer device to form mortar or concrete for use.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: March 5, 1991
    Assignee: E-Con Mega Mix
    Inventors: Robert C. Tousignant, James W. Tousignant, Richard L. Tousignant
  • Patent number: 4989986
    Abstract: A drum mixer is provided for producing an asphaltic composition. The drum mixer utilizes a first heat source located at an intermediate position within the drum mixer for producing a first current of hot gases directed towards the entry end of the drum mixer. The drum mixer also utilizes a second heat source located at the discharge end of the drum mixer for producing a second current of hot gases directed towards the entry end. Virgin aggregate is introduced into the drum mixer at the entry end of the drum mixer and is heated by the first current of hot gases. Recycle material is introduced into a mixing zone within the drum mixer between the first heat source and the discharge end. The heated virgin aggregate combines with the recycle material in the mixing zone and is further heated by the second heat source. Liquid asphalt is mixed with the virgin aggregate and recycle material in the mixing zone and the product is removed from the drum mixer at the discharge end.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: February 5, 1991
    Assignee: CMI Corporation
    Inventor: George W. Swisher, Jr.
  • Patent number: 4963031
    Abstract: A novel process and apparatus for discharging, on a batch basis, cement and water as a slurry or in the form of separate discharges of slurry and cement, where the materials so discharged contain a predetermined amount of water and a predetermined amount of cement, is disclosed. A major quantity of water and all or a major quantity of the cement is mixed in a slurry mixer to produce a primary slurry. A major portion of the primary slurry is then discharged, and the remaining slurry mixed with the remaining quantity of water for discharge as a second slurry. A minor portion of the cement can optionally be added to a dry chamber for discharge therefrom. The slurry mixer and dry chamber, which are substantially closed systems, can be vented together, and then vented to atmosphere, so that air in the slurry mixer which is displaced during water and cement charging flows through the dry chamber.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: October 16, 1990
    Assignee: Alsur Enterprises Ltd.
    Inventor: Ronald O. Brown
  • Patent number: 4955722
    Abstract: A mixer (10) consisting of a stationary casing (9), into which the outlet end (2b) of a rotary drum (2) opens, and mixing vanes fixed to the casing of the drum (2) and extending this casing axially in the direction of its outlet (2b). A burner (13) having an elongate body (12) projects into the drum (2) at its outlet end (2b) and opens into a flame zone (22). A recycling ring (32) is arranged around the drum (2) in the vicinity of the end (12a) of a burner. The casing (9) of the mixer delimits a mixing zone (36), separate from the flame zone (22), around the body (12) of the burner.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: September 11, 1990
    Assignee: Ermont, C.M.
    Inventor: Guy Marconnet
  • Patent number: 4954995
    Abstract: A burner (13) and a conveyor (6) for aggregates (7) into the drum (2) penetrate into the drum at opposite ends (2a, 2b). Circulation of the gases inside the drum occurs in direction opposite to circulation of the aggregates. The burner has an elongated body (12) arranged in the axial direction of the drum. The drum comprises, from the inlet end (2a) to the outlet end (2b), a drying zone (21), a flame zone (22), a zone for introducing recycled mixes (23') and a heating and mixing zone (23). The device may be associated with a mixer (42) of the conventional type in which the bituminous products (11) leaving the drum (2) are mixed with liquid bitumen and worked. The invention enables coated products for road surfaces to be prepared without the production of bitumen vapor.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: September 4, 1990
    Assignee: Ermont C. M.
    Inventor: Guy Marconnet
  • Patent number: 4913552
    Abstract: A drum mixer having an countercurrent flow drying zone and a parallel flow mixing zone is provided for producing an asphaltic composition. The drum mixer utilizes a heat source located at an intermediate position therein for generating three streams of hot gases. The first stream of hot gases is directed towards the receiving end of the drum mixer in a countercurrent direction to the flow virgin aggregate entering the drying zone of the drum mixer. Recycle material is introduced into the drum mixer between the heat source and the discharge end thereof. The recycle material and the heated virgin aggregate are combined within the mixing zone. As both materials travel towards the discharge end of the drum mixer the second stream of hot gases is directed towards the discharge end of the drum mixer in a parallel direction to the flow of the mixing materials for heating said materials.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: April 3, 1990
    Inventor: Paul E. Bracegirdle
  • Patent number: 4907890
    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.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: March 13, 1990
    Assignee: Cemen-Tech, Inc.
    Inventor: Larry G. Lepper
  • Patent number: 4900154
    Abstract: A concrete mixer is disclosed having a mixing drum and a drag body is mounted in the drum which has a drag surface positioned to at least partially come into contact with concrete in the drum during a measuring phase in the concrete mixing operation. A hydraulic driving circuit is provided to oscillate the drag body at least during the measuring phase. A pressure sensor is connected in the hydraulic driving circuit for measuring the actual pressure value in the hydraulic driving circuit which is indicative of the flow resistance on the drag surface during the measuring phase of the mixing operation.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: February 13, 1990
    Assignee: Ingrid Hudelmaier
    Inventors: Franz Waitzinger, Gerhard Hudelmaier
  • Patent number: 4892411
    Abstract: 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 materials with liquid asphalt cement and other ingredients to formulate asphalt paving materials.A first cylindrical rotatable drum dryer has a first material input in one end thereof and a material output at the other end thereof. The output is directable at the option of the operator to either a hot elevator for carrying it to an asphalt batch plant or into a second concentric or offset rotating drum mixer. A burner is mounted either at the output end of the first cylindrical drum, or at the output end of the second drum and extends therethrough to the output end of the first cylindrical drum for directing a flame into the first cylindrical drum.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: January 9, 1990
    Inventors: E. J. Elliott, Fred W. Prill, Douglas R. Fisher
  • Patent number: 4881819
    Abstract: 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 sample is dried. The amount of water added to a concrete charge is regulated subject to the weight difference of the sand sample prior to and after drying.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: November 21, 1989
    Assignee: Deltracon Deventer B.V.
    Inventor: Frederik C. Blees