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| Number | Title | Issue Date |
| 8083394 | Concrete wash and recovery system A system for recovering concrete wash product includes a support frame mounted pivotally to a chassis of a transit concrete mixing vehicle, and a container mounted to the frame for arcuate movement with the frame, between a collecting position with the container dis... | 12/27/2011 |
| 7967496 | Concrete batch mixer A batch mixer comprises a mixing drum rotatable about a longitudinal axis extending between an inlet opening and a discharge opening at opposing ends of the drum. Mixing members and transfer members supported in the drum mix the material when rotated in a first dire... | 06/28/2011 |
| 7147360 | Disposal of cement waste from chute An apparatus and method for collecting and transporting concrete waste comprises a container, a cart for supporting and moving the container and a lifting component attached to the frame of a cement truck for lifting the cart and container off the ground for transpo... | 12/12/2006 |
| 6966415 | Rollable support for a cement-pouring chute An apparatus for rollably supporting a cement-pouring chute having a support structure cooperatively engageable with a cement-pouring chute for supporting the chute and directing the pouring of cement therefrom. The support structure is angularly adjustable to allow... | 11/22/2005 |
| 6957908 | Environmental shield for a truck mounted concrete mixer An environmental shield for reducing or eliminating leakage of materials from transit vehicles, including truck-mounted concrete mixers, is provided. The environmental shield preferably engages at least a portion of an opening on a mixer drum such that the leakage t... | 10/25/2005 |
| 6880965 | Gate for mixer unit of a concrete transport vehicle A mixing drum gate for a concrete transport vehicle is described. The gate includes a pivotally mounted plate that abuts the lower portion of the rim of the drum mouth and is biased against it so as to maintain the abutment during rotation, shifting and flexing of t... | 04/19/2005 |
| 6811292 | Charge hopper for transit concrete mixer A two-piece charge hopper assembly for a concrete transit mixing vehicle of the rear-discharge type is disclosed in which a lower, movable portion including the hopper discharge lip is enabled to swing out of the way of discharging concrete while the upper body of t... | 11/02/2004 |
| 6666573 | Portable mixing/delivery apparatus for pre-blended granular mixtures A portable mixing/delivery apparatus mixes dry pre-blended materials, such as homogeneous cementitious combinations of dry sand, cement, Lime, color pigments, etc., packaged in large bulk bags for use at a remote construction site. The bulk bag is lifted ... | 12/23/2003 |
| 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 |
| 6461098 | Apparatus and method for disposal of cement waste Apparatus and method for collecting and transporting cement and concrete waste. The apparatus comprises a container, a cart for supporting and moving the container, and lifting means attached to the frame of a cement truck for lifting the cart and contain... | 10/08/2002 |
| 6350051 | Hopper assembly for a cement truck A hopper assembly for a ready mixed concrete truck having a material off loading position and a material on loading position. The hopper assembly includes a main chute portion and a movable portion movable between an open position for off loading and a cl... | 02/26/2002 |
| 6293689 | High volume portable concrete batching and mixing plant having compulsory mixer with overlying supported silo A four trailer portable concrete batching and mixing plant has production volumes of up to 600 cubic yards of concrete per hour of paving concrete meeting exacting modem paving standards. A first mixer trailer with a mounted water tank forms the plant fra... | 09/25/2001 |
| 6267494 | Warning system for a charge hopper A warning system is disclosed for use on a concrete mixer to indicate that a charge hopper 28 is in a raised position. Such concrete mixers include an air supply, a mixing drum having an access port, a frame supporting the mixing drum, and a charge hopper... | 07/31/2001 |
| 6179463 | Inlet hopper cover for a cement mixing truck A cover for the inlet hopper for a cement mixing truck that is constructed of a sheet material body that is to be draped over the access opening of the inlet hopper and fixed in position by a pair of stretchable cords which are used as attachments to conn... | 01/30/2001 |
| 6039468 | Washout assembly for cement mixer vehicle A washout bucket which receives waste water and concrete material washed from equipment used to deliver concrete material from the mixing drum of a cement mixer truck to a desired location on a job site, is used in cooperation with a tag axle assembly piv... | 03/21/2000 |
| 5884998 | Front discharge transit mixer The present invention defines a transit mixer for the delivery of materials to a job site. The transit mixer has a charge hopper for receiving material therein and delivering the material to the mixing drum which forms a portion of the transit mixer. The ... | 03/23/1999 |
| 5785421 | Mobile modular concrete batch plant A batching module for a mobile batching plant includes an open three dimensional frame with first and second end cells defined therein and a third intermediate cell defined between the end cells. A plurality of interchangeable batching apparatus are provi... | 07/28/1998 |
| 5741065 | Cleaning system and methods for a mixing truck The invention provides systems, methods and apparatus for cleaning a mixing truck by removing and recycling any non-delivered material. In one exemplary system, the invention is preferably attached to a mixing truck having at least one delivery chute and ... | 04/21/1998 |
| 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 |
| 5556196 | Cement charging, mixing and pouring apparatus attached on a heavy duty machine A cement mixer pivotably mounted on a linkage of an arm assembly of a heavy-duty machine, for example, an excavator or a shovel. The cement mixer includes a barrel, an agitator assembly rotatably mounted on the barrel and used to agitate materials to be m... | 09/17/1996 |
| 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 |
| 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 |
| 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 |
| 4428677 | Hopper for mixer unit of a concrete transport vehicle The mixer unit of a concrete transport vehicle has a loading hopper constructed in two sections which are connected together at a hinge joint. The one section is attached firmly to the frame of the mixer unit, and this section is located opposite to the o... | 01/31/1984 |
| 4390282 | Container Containers for providing predetermined quantities of cement and aggregate to be transported to a site for on site mixing of concrete. The containers have two compartments which are self closing due to the weight of the contents, one compartment containing... | 06/28/1983 |
| 4339204 | Apparatus for use in the production of concrete Apparatus for metering and feeding aggregate materials for the production of concrete is constructed so as to be transportable as a unit. To this end, the frame of the apparatus is in two parts which are pivotally connected with one another, the one, fixe... | 07/13/1982 |
| 4318621 | Transit concrete mixer with displaceable charging hopper A transit concrete mixer is provided having a displaceable charging hopper which may be moved between a charging position wherein a discharge conduit thereof projects into the interior of the mixer drum and a relatively displaced position where the discha... | 03/09/1982 |
| 4302110 | Mixing apparatus A concrete mixing apparatus with a stationary mixing container and an upper circular cover plate arranged to rotate in relation to said container. The apparatus is provided with a machinery for rotating said cover plate and with a discharge channel for on... | 11/24/1981 |
| 4268175 | Tractor mounted self-loading concrete mixing apparatus Tractor mounted mixing apparatus is disclosed including a mounting frame attachable to a three-point tractor hitch, a mixing drum rotatably mounted to the frame and having mechanism for rotatably driving the drum, and a scoop pivotally connected to the su... | 05/19/1981 |
| 4211492 | Dough portioning machine Dough to be portioned is filled into a hopper, which leads to a chamber from which the dough is forced by means of a plunger into pocket openings arranged on the circumference of a rotating drum. Two rotary members are arranged in the hopper, each of whic... | 07/08/1980 |
| 4189237 | Method of preparing and pouring concrete on a building site and a container and a vehicle for use with this method A method of mixing concrete and containers for providing predetermined quantities of cement and aggregate to be transported to a site for on site mixing of concrete. The containers have two compartments which are self closing due to the weight of the cont... | 02/19/1980 |
| 4093085 | Apparatus for making ready-mixed concrete This invention relates to apparatus for making ready-mixed concrete, comprising a plurality of transfer containers divided into separate chambers and adapted to be moved along a closed path to at least one filling station and a plurality of emptying or wa... | 06/06/1978 |
| 4034847 | Granular matter feeding method and apparatus therefor A granular matter feeding method and an apparatus, in which unvulcanized rubber blocks of a non-fixed shape are crushed by a crusher into granules, the weight of said granules being measured, batches of said granules being fed onto a plurality of storages... | 07/12/1977 |
