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| Number | Title | Issue Date |
| 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 |
| 7178657 | Concrete chute attachment A chute extension for a typical concrete mixing truck, the extension has a chute attachment spring clip on the attachment end and a funneled outlet on the delivery end. The invention further comprises an angle where the delivery end meets the end of the trough, for ... | 02/20/2007 |
| 7147361 | Methods for injecting dry bulk amendments for water and soil treatment The present invention includes methods for introducing a dry material into a fluid stream in a way that ensures a predictable, highly accurate and consistent application of the material. The invention applies variable amounts of dry material regardless of whether th... | 12/12/2006 |
| 6997436 | Vehicle actuator with valve seat cushioned by o-ring A valve for a control system of a vehicle includes a plunger slidably supported in a valve housing. Within the housing is a valve seat member that defines a valve seat configured for engaging the plunger in a closed configuration. The edges of the valve seat member ... | 02/14/2006 |
| 6991361 | Portable concrete plant A portable concrete plant for producing ready mix concrete proximate to a location where the ready mix concrete is used. The portable concrete plant includes storage regions for storing components used in the ready mix concrete. The portable concrete plant also incl... | 01/31/2006 |
| 6644844 | Mobile blending apparatus The present disclosure provides a blender apparatus that can be used to prepare a slurry from carrier fluids and solids. In a preferred embodiment, the blender includes a mixing tub system, a fluids intake system, a solids intake system and a slurry deliv... | 11/11/2003 |
| 6527428 | High volume portable concrete batching and mixing plant having compulsory mixer with overlying supported silo A first mixer trailer forms the plant frame foundation around a twelve-yard compulsory mixer. The compulsory mixer is mounted for elevation relative to plant frame foundation by hydraulic lifting columns. In system erection, a cement silo trailer is first... | 03/04/2003 |
| 6267847 | Pulper for a stock preparation system A pulper in a stock preparation system includes a housing with a fiber inlet, at least one water inlet, at least one outlet and an inner chamber. A plurality of stationary pulping foils are attached to the housing and extend into the inner chamber. A rota... | 07/31/2001 |
| 6193402 | Multiple tub mobile blender An improved oil and gas well servicing apparatus for blending and delivering a slurry of fracturing fluid and particulate matter at constant flow rate and pressure to a downhole pump is disclosed. Multiple blending tubs are mounted on a trailer or skid an... | 02/27/2001 |
| 6186654 | Portable and modular batching and mixing plant for concrete and the like A portable concrete plant capable of producing up to 240 to 300 cubic yards or more of concrete per hour is disclosed in which two hauling trailers, a mixer trailer and an aggregate trailer, both serve as the transport vehicles and as foundation for the c... | 02/13/2001 |
| 5893639 | Apparatus for producing and simulataneously distributing cement mixes and the like Apparatus for distributing and producing cement mixes, substantially concrete, using an endless conveyor belt movable at the base of separate containers which contain the inert materials and the cement, and a reservoir for the mixing water, to form propor... | 04/13/1999 |
| 5695280 | Concrete stabilization system and method for utilizing same A concrete stabilization system which includes a number of subsystems to provide a complete reuse and reclaiming of all concrete which remains unused at the end of the production day, and also reclaims all constituents of washout concrete from a number of... | 12/09/1997 |
| 5580166 | Cement pump for a wet spray system In a concrete pump for wet spraying, in which standard concrete is pumped to a mixing jet, compressed air and if necessary a hardening accelerant are mixed into the concrete stream, which is applied with the jet and compressed; it is the purpose of the in... | 12/03/1996 |
| 5354127 | Segmented mixing auger An auger conveyor assembly including a helical auger infeed section having interrupted auger flights which communicate with an offset, commonly driven outfeed section including a helical ribbon auger and whereat both augers simultaneously blend the mixtur... | 10/11/1994 |
| 5213414 | Mixing apparatus 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 ... | 05/25/1993 |
| 4993839 | Method and apparatus for producing asphaltic mix A method and apparatus for producing asphaltic mix for roadway use is disclosed, and which comprises a primary plant which is designed to be located remote from the point of use, and a separate satellite plant which is designed to be located relatively cl... | 02/19/1991 |
| 4973166 | Particulate material conditioner A machine for conditioning granular materials includes a dual section chamber through which a transport belt travels and in the first chamber of which are a pair of closely spaced counter-rotating heads so driven that the material is moved toward the narr... | 11/27/1990 |
| 4968349 | Method for producing hardened cement mineral material, especially concrete, and an apparatus for implementation of the method The invention concerns a method for producing a hardened mineral product, especially concrete. The method utilizes a hydration reaction with water for at least 1 hour, preferably for 4 to 40 hours, by producing a water/binding agent paste containing compo... | 11/06/1990 |
| 4966463 | Mixer unit for cellular concrete paste and method of making such paste A cellular concrete paste mixer unit is provided consisting of a first mixer and an increased number of second mixers. The mixer unit is able to simultaneously produce cement paste and cellular concrete paste. A method of making cellular concrete paste us... | 10/30/1990 |
| 4922463 | Portable volumetric concrete mixer/silo A modularly constructed, trailerable, skid mounted, multi-compartmented concrete mixer and cement storage silo having a plurality of longitudinally aligned, bottom mounted, driven feed chains. In a combination construction, a single motor is cooperatively... | 05/01/1990 |
| 4907890 | Portable-concrete mixing device and method for using same 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 ... | 03/13/1990 |
| 4892410 | Method and apparatus for protective encapsulation of structural members The method and apparatus for forming an encapsulation or encasement about a structural member that is particularly well suited for use in a marine environment is disclosed. A two component polymer system for protective and repair encapsulation is pumpable... | 01/09/1990 |
| 4854714 | Blender vehicle apparatus A blender vehicle apparatus includes a vehicle having a vehicle frame. An internal combustion engine driven hydraulic power package is mounted on the vehicle frame. A plurality of liquid additive storage tanks are mounted on the frame adjacent the power p... | 08/08/1989 |
| 4846580 | Large scale concrete conveyance techniques The disclosure describes a method and apparatus for continuous mixing, transporting and placing of large quantities of concrete in which aggregate transported on a belt conveyor is mixed with metered quantities of cement and water adjacent a place of pour... | 07/11/1989 |
| 4838701 | Mixer A mixer suitable for mixing a particulate material with a liquid. The mixer has a particulate material conduit, and a volute chamber disposed about the conduit. The volute chamber has a liquid inlet and an open lower end through which the particulate mate... | 06/13/1989 |
| 4834542 | Mixer for pulverous and liquid materials (essentially cement and water), of liquid-liquid materials The invention consists of a centrifugal mixer with an upper rotor (3) for projection of particles, which is hard-mounted to rotor (4) allowing centrifuging of fluid (15). The invention lies in the creation of a low-pressure zone within the high-pressure z... | 05/30/1989 |
| 4832498 | Mobile concrete mixer A mobile concrete mixer comprising an elongated wheeled frame adapted to be connected at its forward end to a prime mover such as a truck or the like to enable the mixer to be moved from one location to another. An elongated conveyor support is pivotally ... | 05/23/1989 |
| 4792234 | Portable concrete batch plant The invention comprises a mobile concrete batch plant transportable by highway as a single unit. A cement storage hopper, a cement weigh hopper, and an aggregate weigh hopper are mounted on a standard trailer bed. The cement hopper is loaded to the desire... | 12/20/1988 |
| 4783171 | Loading conveyor for concrete mixer A loading conveyor for a mobile concrete mixing machine is disclosed wherein the conveyor is provided with a receiving hopper for receiving a supply of material from an external source of supply. The chain and slat conveyor is provided with an elevating p... | 11/08/1988 |
| 4781466 | Method and apparatus for producing concrete A method and apparatus for continuously producing concrete at a job site is disclosed wherein the machine is provided with separate aggregate supply bins and a cement supply bin which are arranged in a generally linear fashion on a mobile frame and sized ... | 11/01/1988 |
| 4755059 | Auger swivel for concrete mixer An auger swivel for a concrete mixer includes a channel mounted to a bowl. A center member is pivotally connected to a pivot point near the channel and near an outer surface of the bowl. The center member includes a pair of first wings that extend from th... | 07/05/1988 |
| 4752134 | Mobile concrete mixer A mobile concrete mixer comprising an elongated wheeled frame adapted to be connected at its forward end to a prime mover such as a truck or the like to enable the mixer to be moved from one location to another. An elongated conveyor support is pivotally ... | 06/21/1988 |
| 4579459 | Mixing auger mounting and storage arrangement In a concrete production system, an improved aggregates conveying apparatus includes an aggregates drag conveyor having a lower, conveying run which drags aggregates along a centrally-located, common trough shared by separate fine and coarse aggregates ho... | 04/01/1986 |
| 4560281 | Foundry apparatus for mixing sand with binder Foundry apparatus for mixing sand with binder ingredients to produce a composite mixture suitable for foundry molds includes a first premixing chamber enclosing a first bladed shaft mounted for rotation about a substantially horizontal first axis operable... | 12/24/1985 |
| 4548507 | Mixing apparatus for the production of mixtures Mixing apparatus is provided for the production of mixtures of particulate solids and in particular, for the production of various mortar mixtures. The apparatus includes metering means, control means and transfer means for metering out and introducing pr... | 10/22/1985 |
| 4395128 | Mixing tower for concrete or the like A mixing tower for concrete or the like has a series of superimposed prefabricated modules which are connected to one another and include a cylindrical lowermost module, a frustoconical intermediate module with several outlets which is integral with the t... | 07/26/1983 |
| 4322167 | Method for making asphalt-rubber pavement compositions A method and apparatus for mixing molten asphalt and granulated rubber including an asphalt input system and a rubber input system for delivering the molten asphalt and the granulated rubber in accordance with predetermined mixture proportions to a two-st... | 03/30/1982 |
| 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 |
| 4298288 | Mobile concreting apparatus and method A mobile concreting apparatus and method which may be used, in particular, for on-site construction of swimming pools. It includes a vehicle supporting a plurality of containers, each adapted to contain one of the ingredients of concrete. Each container i... | 11/03/1981 |
| 4285598 | Concrete mixing apparatus A concrete mixing machine is disclosed which mixes small batches of concrete using any desired ratio of gravel, sand, cement, and water. The dry materials are mixed into concrete at the site where the concrete is to be poured. The apparatus includes hoppe... | 08/25/1981 |
