Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7350965 | Industrial mixer stand A Stand for Industrial Mixers is disclosed. The stand includes a tiltable cradle for securely holding a mixer while a worker conducts maintenance on it. The stand further has an integrated seat to accommodate the worker. Furthermore, the stand provides a convenient ... | 04/01/2008 |
| 7293585 | Bulk bag unloading apparatus An apparatus for unloading a comminuted material contained in a bag having means disposed at an upper end portion thereof for suspending the bag and a closable discharge outlet disposed at a lower end thereof generally consisting of a support means; and a hopper hav... | 11/13/2007 |
| 7281838 | Material mixing chamber installed in the bucket of a skid loader or backhoe type vehicle A material mixing chamber inserted into the bucket of an existing loader or backhoe, which provides the power source for the up and down motion creating gravity flow in the chamber. In said chamber a plurality of unique diffusers are affixed in a symmetrical stagger... | 10/16/2007 |
| 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 |
| 7165877 | Slurry mixing apparatus The invention is an apparatus for mixing fluent material. A hopper is pivotably mounted to a frame on a pivot axis that is substantially spaced from the axis of rotation of a mixing paddle. Because the pivot axis is substantially spaced from the axis of rotation, th... | 01/23/2007 |
| 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 |
| 7121715 | Variable height, multiple position batch blender assembly A liftable blender assembly has a container, which is easily filled and emptied in that it may be loaded with ingredients from the top, may cause the ingredients to mix or react, may be raised and then may be emptied from the bottom. ... | 10/17/2006 |
| 7117995 | Concrete reclamation apparatus An apparatus which is useful in the separation of solids from a diluted, wet, concrete mixture has (a) a free-standing first container with a drain port and a top opening, (b) a strainer disposed within the first container, (c) a drain port shut-off valve, (d) a sec... | 10/10/2006 |
| 6966687 | Disposal of cement waste from chute An apparatus and method for collecting and transporting concrete waste includes a container, a cart for supporting and moving the container and a mechanism attached to the frame of a cement truck for lifting the cart and container off the ground for transport. The a... | 11/22/2005 |
| 6832851 | Container concrete mixing plant The invention relates to a transportable concrete mixing plant (10) which comprises a plurality or releasably interconnected mixing plant components. Said mixing plant components are contained in a plurality of containers (C1, C2, C3, C | 12/21/2004 |
| 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 |
| 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 |
| 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 |
| 6193403 | Bucket mixer attachment for skid steer vehicle A mixer for particulate materials, such as soil, dirt, sand, concrete, lime, fertilizers, aggregate, and water, hitched to a skid steer motor vehicle has a bucket for accommodating the particulate materials. A pair of augers having opposite spiral flights... | 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 |
| 6164809 | Counter-flow asphalt plant with independently rotatable dryer and mixer A counter-flow asphalt plant with a separately controlled and operated dryer 50 and mixer 52 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition. The dryer 50 is rotated by a variable dryer drive 58... | 12/26/2000 |
| 6106211 | Portable overhead bin A portable overhead bin comprising a plurality of adjacent frame members pivotally connected such that the frame members form a horizontal transport frame when in the lowered transport position, and further form an elevated overhead frame when the frame m... | 08/22/2000 |
| 5797676 | Mobile concrete mixing system transportable onto trucks The present invention relates to a mobile concrete mixing system which substantially comprises: a feeding unit (2); a mixing unit (3); a conveyor belt; and a support structure (5) that embodies a first framework (18) supporting the conveyor belt (4), and ... | 08/25/1998 |
| 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 |
| 5474379 | Portable high volume cement mixer An improved portable, large volume cement mixer that includes a self-supporting inclined plane secured atop a wheeled main frame that provides basic structural support without the need for ancillary lifting equipment. The inclined plane is constructed in ... | 12/12/1995 |
| 5433521 | Batcher plant for producing ready-mixed concrete A batcher plant for producing ready-mixed concrete is miniaturized by disposing, side by side on a trestle, a cement-paste making unit with cement measuring means and a stationary cement-paste mixer and an aggregate processing unit with fine and coarse ag... | 07/18/1995 |
| 5411329 | Portable large volume cement mixer for batch operations A large volume cement mixer that is readily mobile and can be set up for use with a concrete batch plant at a given location. The cement mixer is carried on an elongated frame having wheels on one end and a gooseneck connection on the front end for towing... | 05/02/1995 |
| 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 |
| 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 |
| 4964731 | Shotcrete gun Shotcrete gun consisting of a concrete container and a spraying device, such as a worm screw, and a nozzle for pressurized air. The whole shotcrete gun assembly is mounted on a traversing mechanism allowing the shotcrete gun to be shifted in the horizonta... | 10/23/1990 |
| 4795264 | Arrangement for concrete production in tunnels A concreting train consists of a plurality of wagons supporting a mixer, a multiple conveyor arrangement and separate containers for cement and aggregate. A container for cement has at least one integrated conveyor worm. All container wagons are provided ... | 01/03/1989 |
| 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 |
| 4525070 | Rotary mixing apparatus A mixing apparatus for dry or wet ingredients is disclosed, which comprises an upwardly inclined trackway, and a mixing container mounted for rolling movement along the trackway. The trackway includes a scale at the lower end which permits the container a... | 06/25/1985 |
| 4464055 | Apparatus for the production of colloidal mixtures A method for producing colloidal mixtures, especially water-cement mixtures with or without further solid additions, comprising the steps of feeding the material for forming the colloidal mixture into a container, stirring the material fed into the contai... | 08/07/1984 |
| 4441820 | Concrete mix surge bin A surge bin for concrete mix comprises an open-topped body having side walls with rear portions that converge towards a gated rear discharge outlet and having a bottom wall curved concentrically to an agitator axis that extends fore-and-aft in the body. A... | 04/10/1984 |
| 4159180 | Ground fed blender A land vehicle for use as a blender for the mixing of dry, particulate, and liquid materials comprising a chassis having an articulated frame thereon, the articulated frame including a first translatable portion and a second translatable, rotatable portio... | 06/26/1979 |
| 4075711 | Concrete mixing system An upright concrete mixing chamber having an inlet formed in the top thereof and an outlet formed in the bottom thereof is supported in a lowered position upon a horizontal working surface so as to provide operator access to the inlet when the operator is... | 02/21/1978 |
| 4032116 | Mixer attachment for mining vehicles A mixer attachment for reception in or substitute for the forwardly directed scoop provided on the front end of a mining vehicle, the mixer being primarily adapted for concrete which is applied to the mine walls by a companion machine, and includes a supp... | 06/28/1977 |
| 3944190 | Transit mix system and method, and support for transit mix unit A portable transit mix unit comprising a support base and concrete mixer drum thereon, is provided with rollers movably connected to the base whereby the base can be elevated out of engagement with the bed of a truck or lowered to support the unit directl... | 03/16/1976 |
| 3942772 | Technique for mixing granular materials There is disclosed a technique for mixing concrete in which cement and aggregate are separately discharged from metering devices in free fall paths of precise predetermined cross-section toward a conveyor. The material paths converge toward a rotating mix... | 03/09/1976 |
