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| Number | Title | Issue Date |
| 7374331 | Method and apparatus electrostatically controlling the viscosity and other properties of ceramic compositions 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 electrostat... | 05/20/2008 |
| 7281839 | Turbine cement/water mixer for concrete production A high-speed turbine mixer combines water and cement into a pre-mixed cement paste that is added to aggregates to create a concrete mix. The turbine mixer includes a housing that cooperates with an auger to move dry cement into a mixing chamber where water is added.... | 10/16/2007 |
| 7270469 | Apparatus and method for adding pigmentation to concrete mix A pigmentation dispenser utilizes a hopper having two rotors therein, a first rotor above a second rotor. The second rotor moves the pigmentation material through an outlet opening and deposits it on a conveyor containing a concrete mix. The concrete mix and pigment... | 09/18/2007 |
| 7258522 | Method for mounting a frac blender on a transport vehicle A frac blender mounted on a transport vehicle and adapted for movement along a vertical, linear path between a raised stowed position and a lowered operating position. The frac blender is moved between positions by a drive system that is slip connected to the frac b... | 08/21/2007 |
| 7241337 | Paving composition containing lime kiln dust A stone matrix asphalt for use as a paving composition, containing lime kiln dust as a mineral filler. The lime kiln dust results from production of lime from limestone in a kiln and contains available calcium oxide in an amount of less than forty percent by weight.... | 07/10/2007 |
| 7207793 | Method and apparatus for introducing an additive to a composite panel A method of forming a composite panel includes the steps of supplying a material to a forming station, supplying a dry additive to the material at the forming station, producing a mat comprising the material and the additive, and applying heat and pressure to the ma... | 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 |
| 7178974 | Plural component polymer grout plant A plural component polymer grout plant device for mixing, batching and distributing a multiple component polymer having a filler additive. The polymer grout plant device comprises a frame, at least two primary mixing containers, two batching containers, attached to ... | 02/20/2007 |
| 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 |
| 7121713 | Swinging agitator for a gypsum calcining apparatus and the like An agitation mechanism for a gypsum processing apparatus which includes a housing having a bottom wall, and at least one side wall. The housing can be constructed and arranged to receive and process gypsum-based products. An agitator frame having a similarly shaped ... | 10/17/2006 |
| 7114842 | Controlling ready mixed concrete sludge water Method and system for concrete wash-out water re-use, wherein an apparatus such as a mixing truck (1) is washed out and sludge (2) water re-used. The invention comprises providing sensors (11), in a communication system connected with a control ... | 10/03/2006 |
| 7064314 | Concrete-dispensing counter for ready mix trucks A concrete-dispensing counter for ready mix trucks for measuring the volume of concrete discharged by a ready mix concrete truck. The concrete-dispensing counter for ready mix trucks includes a prime mover having a drum being rotatably mounted thereupon and also hav... | 06/20/2006 |
| 7050886 | Chemical dispensing system for a portable concrete plant 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... | 05/23/2006 |
| 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 |
| 6971783 | Recycled material and mixing machinery 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 a... | 12/06/2005 |
| 6971784 | Process for producing fiber reinforced hot-mix asphaltic and cementitous structural materials with fiber pellets produced from carpet waste 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 ... | 12/06/2005 |
| 6932169 | System and method for developing and recycling drilling fluids A system and method for developing and recycling drilling fluids at the site of a subterranean well is described, thus eliminating the need for transporting the fluids to the site. ... | 08/23/2005 |
| 6860313 | Method and device for the preparation of foundry sand 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 compon... | 03/01/2005 |
| 6780367 | Method for preparing a concrete article having reinforcing fibers frayed at their ends 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 rei... | 08/24/2004 |
| 6591891 | Method for making sand covered with bentonite, the sand, and a method for recycling molding sand for a mold using the sand covered by bentonite 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 facin... | 07/15/2003 |
| 6030111 | Method of and system for recycling molding sand 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 re... | 02/29/2000 |
| 6015225 | Vibration input to moving aqueous cementitious slurry 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 t... | 01/18/2000 |
| 5813754 | Vibration input to moving aqueous cemetitious slurry 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 te... | 09/29/1998 |
| 5785419 | Lightweight building material and method of construction of cast-in-place structures 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 h... | 07/28/1998 |
| 5564823 | Method and apparatus for separation and volume measurement of components for lightweight concrete 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 appar... | 10/15/1996 |
| 5507572 | Method and apparatus for supplying a continuous product stream of lime slurry to a remote jobsite 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 wa... | 04/16/1996 |
| 5466063 | Device for continuously mixing liquid additives into a fluid This invention concerns a device for continuously injecting liquid additives into a fluid. The device includes a jet eductors system for prediluting the additives. Applications in the oil and related industries, the building industry and similar. FIG. 1... | 11/14/1995 |
| 5427448 | Method for mixing concrete using a cementitious material/liquid premixer A method of mixing cementitious material, liquid, and aggregate uses a cementitious material/liquid premixer to form concrete. The method of mixing includes: dispensing cementitious material through a material outlet; receiving the cementitious material i... | 06/27/1995 |
| 5375925 | Material blender mixer and method therefor A material blender mixer is mounted to a chassis of a vehicle. The mixer includes a first material holder bin mounted to the vehicle chassis, a second material holder bin mounted to the chassis positioned reawardly of the first material bin, a device for ... | 12/27/1994 |
| 5368382 | Cement paste mixer and method for producing mortar and concrete There is provided in a pressure feed pipe for feeding cement paste under pressure a wall panel assembly formed of a plurality of wall panels having collision surfaces and through holes and arranged at predetermined intervals. High-strength or superhigh-st... | 11/29/1994 |
| 5265247 | Laboratory data storage and retrieval system and method A method for maintaining in a computer memory laboratory test records for a plurality of projects, particularly adapted to projects for cementing oil or gas wells, are disclosed. Records of data identifying the plurality of projects and records of test da... | 11/23/1993 |
| 5201472 | Method for preparing and storing a recyclable shingle material A method for treating asphalt roofing shingles to be used for recycling in an asphalt plant which mixes asphalt roofing shingles with between about 15% and 50% by weight of a carrier aggregate. The aggregate is fed into a shredder with the shingles or is ... | 04/13/1993 |
| 5178455 | Method for recycling wash residue of ready mixed concrete and system therefor 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 det... | 01/12/1993 |
| 5114239 | Mixing apparatus and method A mixing apparatus comprises two or more tubs in which mixtures can be mixed to obtain averaging of a particular property, such as density. Two recirculation lines are used. One recirculates between an initial mixing tub and a mixing inlet, and the other ... | 05/19/1992 |
| 4904089 | Particle wetting process and apparatus A method of mixing particulate cement and water in a primary mixing vessel to form a slurry batch, includes introducing a measured quantity of water into the vessel, introducing a measured quantity of particulate cement into the vessel, agitating the wate... | 02/27/1990 |
| 4767461 | Method for manufacturing concrete The present invention is directed to a method for manufacturing a concrete which comprises the steps of mixing 20 to 100% of the total weight of cement used with water in an amount of 20 to 50% of this cement weight in order to prepare a stiff-consistency... | 08/30/1988 |
| 4491414 | Fluid mixing system A fluid agitating apparatus is disposed in a vessel containing a body of fluid to be agitated. The fluid agitating apparatus includes a housing having an inlet at an open lower end thereof, and an outlet at an open upper end thereof, with a flow passage d... | 01/01/1985 |
| 4390281 | Slurry gun A method and apparatus for the mixing of fly ash and a wetting agent to obtain a slurry for the ultimate disposal of fly ash. The apparatus is a slurry gun having an introduction chamber, the wetting agent being introduced horizontally into the chamber un... | 06/28/1983 |
| 4384787 | Method and apparatus for adjusting the quantity of liquid deposited on fine granular materials and method of preparing mortar or concrete The quantity of water on the surface of sand particles is reduced by applying an impact force, e.g. centrifugal force created by a rotating disc. The sand particles thus treated are especially suitable for preparing a green concrete compound or a cement m... | 05/24/1983 |
| 4347002 | Method and apparatus for the preparation of drilling mud A method for the preparation of drilling mud wherein solid and liquid phases of drilling mud are mixed in a vessel (2) to obtain a homogeneous suspension. After the mixing the drilling mud is caused to pass under pressure through apertures (5 or 6) provid... | 08/31/1982 |
