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| Number | Title | Issue Date |
| 7351025 | Aggregate handling system An aggregate handling system includes an aggregate delivery station, which includes one or more delivery bays for receiving aggregate from a delivery truck. The system includes storage apparatus associated with each delivery bay and adapted to receive aggregate by g... | 04/01/2008 |
| 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 |
| 7217029 | Mixer with lump breaker having multiple axes of rotation A mixer is provided comprising: a casing (20) having symmetry of rotation about a first axis (13), mixing members (22) driven in rotation relative to the casing (20) and about a second axis (15) that is inclined relative to the fir... | 05/15/2007 |
| 7156263 | System and method for metering fibrous material A system and method are used to meter fibrous material into a concrete mixture. The system includes an endless conveyor belt rotatably supported on first and second rollers. Pick up members on the belt project into the direction of travel for collecting fibrous mate... | 01/02/2007 |
| 6638344 | Plenum pulsed filter vent A filter vent system and method for separating entrained airborne particulate matter from the conveying fluid is disclosed, particularly as it relates to filling a storage vessel. The filter system employs a simplified, yet more efficient filter cleaning ... | 10/28/2003 |
| 6554465 | Concrete admixture packaging and batch feed system The present invention provides an apparatus for efficient and clean handling of concrete admixtures that allows their incorporation into a concrete mixture in a pre-measured and controlled manner. The system provides a novel packaging system to be integra... | 04/29/2003 |
| 6361199 | Cement mixing apparatus and method Mixing machine for mixing cement components with water to provide a pumpable slurry, and a method for its use. The machine includes a mixing vessel having an inlet for water at an average flow rate and for dry cement components, and a water tank for suppl... | 03/26/2002 |
| 6280073 | Rotary elevator for feeding aggregate from a drum dryer to a mixing drum A rotary aggregate elevator for use in an asphalt plant comprising a rotating dryer drum for drying aggregate having an inlet end and an outlet end, a rotating mixing drum having an inlet end and an outlet end, and further having an inlet for dried aggreg... | 08/28/2001 |
| 6183123 | Fiber additive concrete manufacturing method A method of manufacturing concrete with a fiber additive and other ingredients including the steps of mechanically manipulating a shipping container (36) having a gross amount of fiber additive (50) substantially greater than the an amount susceptible to ... | 02/06/2001 |
| 5709466 | Mixer for cementitious materials An improved mixer for cementitious materials is described. This mixer is mobile and carried to the desired site and comprises a series of tanks and bins for containing the material to be mixed. The device is particularly useful in mixing hazardous wastes ... | 01/20/1998 |
| 5599095 | Concrete strengthening and adhesion material feeding apparatus An apparatus for the controlled feeding of concrete strengthening and adhesion material, such as plastic fibers, to a concrete mix. The apparatus includes a set of reciprocating spikes that contract the fibers with a comb-like action that separates the in... | 02/04/1997 |
| 5490928 | Tandem waterwheel trommel A tandem waterwheel type trommel apparatus having a laterally-disposed drain-off drum and a laterally-disposed classifying drum combined through a short pipe to form a main body, which is rotatably disposed on a base and is connected to a drive unit. A fr... | 02/13/1996 |
| 5261739 | Multifunction construction machine Multifunction building machine used in civil construction sites and public works. The machine combines on a self-propelled frame, a concrete-mixer (20) with a set of tools on one side, comprising a loading power shovel (60), a grader (70) and a digging sh... | 11/16/1993 |
| 5171121 | Portable concrete batch plant A portable concrete batch plant which may be pulled from one location to another and which may be used either as a transit mix batch plant or a central mix batch plant. The batch plant is mounted on a wheeled frame comprised of a rear frame section and a ... | 12/15/1992 |
| 5121989 | Transportable concrete batching apparatus A transportable concrete batching plant is disclosed which combines improvements in the discharge section of the aggregate storage bin and aggregate batching hopper together with an unique suspension system which allows for weighing of both aggregate batc... | 06/16/1992 |
| 4953135 | Dry blending with fibers Disclosed is a method and apparatus for avoiding the clumping of dry fibers having diameters and lengths in certain ranges during blending of such fibers into a dry or wet particulate material. The process comprises distributing fibers in a vaporous mediu... | 08/28/1990 |
| 4940335 | Method and apparatus for adding predetermined quantity of material to a reactor A system for adding a predetermined volume of particulate material to a reactor which includes an inclined track mounted on the reactor such that a lower end of the track terminates adjacent an opening in the reactor, and a slideable container mounted on ... | 07/10/1990 |
| 4932785 | Aggregate drying system with improved aggregate dryer and mass flow apparatus This invention relates to an improved aggregate drying apparatus and method where the dried aggregate is particularly useful for making hot mix asphalt. In accordance with the system, heat typically lost in exhaust gases and moisture evaporated in a heate... | 06/12/1990 |
| 4808004 | Mixing apparatus This invention is directed to a mixing apparatus for mixing liquids and particulate solids which comprises an enclosed cylindrical housing with an inlet means and a liquid/solid outlet means coupled to said housing and a slinger disposed within said housi... | 02/28/1989 |
| 4789244 | Apparatus and method to produce foam, and foamed concrete A method for forming foam, useful in mixing with concrete at a batching plant, includes the steps: (a) supplying a synthetic resinous foaming agent, in liquid form, (b) combining the foaming agent with water, to form a liquid mix, and pressurizing the mix, (c)... | 12/06/1988 |
| 4669887 | Dry blending with fibers Disclosed is a method and apparatus for avoiding the clumping of fibers having diameters and lengths in certain ranges during dry blending of such fibers into a dry matrix material. The process comprises distributing fibers in a vaporous medium, and trans... | 06/02/1987 |
| 4594046 | Mobile apparatus for mixing and loading concrete An apparatus for preparing bulk material and loading it into a truck comprises an elongated first frame having a lower end and adapted to stand via this end on the ground, a horizontal pivot at the lower end of the first frame, and an elongated second fra... | 06/10/1986 |
| 4548538 | Mobile apparatus for mixing and loading concrete An apparatus for preparing bulk material and loading it into a truck comprises an elongated first frame having a lower end and adapted to stand via this end on the ground, a horizontal pivot at the lower end of the first frame, and an elongated second fra... | 10/22/1985 |
| 4544275 | Concrete mixer truck The invention relates to a concrete mixer truck having a mixer drum adapted to be rotatably driven, a water container, a water conduit leading from the container to the drum, and a water pump. An object of the invention is to prevent the quality of a prop... | 10/01/1985 |
| 4448535 | Apparatus for blending additives into a liquid Disclosed is an apparatus for blending sand and solid additives selectively and at selected rates into water for injection into a well. The apparatus may be truck mounted, and includes a frame, an input line with manifold and pump, a mixing tank, a variab... | 05/15/1984 |
| 4431310 | Method of preparing kneaded compositions In the preparation of a cement paste about 30 to 76% of the total water is added to the cement to form a funicular state, capillary state or slurry state, and the resulting mixture is kneaded so as to reduce the coagulated lumps of cement. Then the remain... | 02/14/1984 |
| 4400126 | Roadable storage container for bituminous mix A roadable container or bin for storage of bituminous mix, at a road construction site and quickly erectable to an operative position, and which is characterized by a construction to avoid segregation of the particles in the bituminous mix, to avoid the n... | 08/23/1983 |
| 4311395 | Pivoting skid blender trailer A unique chassis arrangement for the mounting of equipment thereon and a unique equipment arrangement for a ground fed type blender means which is trailer mounted for use in well servicing operations.... | 01/19/1982 |
| 4281934 | Apparatus for mixing construction materials The present mixer for construction materials, such as a bituminous sludge, has a trough with an inlet and an outlet and two mixing shafts equipped with blades rotatably supported in the trough in parallel to each other. The blades are uniformly spaced alo... | 08/04/1981 |
| 4211491 | Covered mixing machine, or the like, and method of loading the same A machine for mixing fireproofing material, concrete or the like includes a cylindrical shaped rotatable drum with a rotatably driven axial shaft having mixer blades attached to the shaft. The drum has an opening for loading and discharging material to be... | 07/08/1980 |
| 4107789 | Method and apparatus for uniformly pneumatically dispersing material The invention employs high volume air to form a cloud of coating material or material to be uniformly dispersed and conveys it to a plenum or common area of the receiving material which is coated. A mixer creates turbulence in the receiving material to tu... | 08/15/1978 |
| 4103351 | Apparatus for controlling the density of a plugging fluid An apparatus for controlling the density of a plugging fluid including means for shaping the jet of the carrier liquid into a flat jet and rotating the jet about its longitudinal axis thereof in the area of mixing a dry cementation material.... | 07/25/1978 |
| 4023779 | Fibrous concrete mixing system A fibrous concrete batch forming system including a bin for receiving fibers having an outlet partially closed by a grate, a toothed member cyclically movable such that the teeth thereon enter the bin to extract substantially individual fibers therefrom t... | 05/17/1977 |
| 4007921 | Apparatus for mixing dry particles with a liquid A blender apparatus is disclosed which is useful for mixing dry particles with a liquid. In a specific application, dry cement is mixed with water to obtain a cement slurry for cementing oil and gas well casings. The cement particles and water are directe... | 02/15/1977 |
| 3997434 | Concrete reclamation system A no-discharge concrete reclamation system that eliminates all waste products and associated pollution. In addition to separating and washing sand and aggregate as provided in conventional systems, the invention provides for holding the water-cement slurr... | 12/14/1976 |
| 3995867 | Process for producing light weight concrete A process and apparatus for producing light weight concrete including a binding agent, an inorganic aggregate and foamed plastic material, whereby the granulated plastic material is supplied to the concrete mixer via a metering mechanism. In a transfer co... | 12/07/1976 |
