Resources Contact Us Home
Silo system for mixing stored material

Image Number 4 for United States Patent #4391528.

A silo for mixing dried and powdery materials such as cement. A number of discharge apertures positioned at different places at the bottom of a mixing silo are connected by conduits to a common receptacle such as an homogenizing silo. A flow control gate is coupled to each discharge aperture to allow material flow to the receptacle to be controlled. Three modes of operation are disclosed: a single flow-mode wherein the flow control gates are opened sequentially one at a time, a dual-flow-same-rate mode wherein pairs of flow control gates are sequentially opened to the same extent, and a dual-flow-different-rate mode wherein pairs of flow control gates are sequentially opened to different extents. A level sensor in the homogenizing silo is connected to a level indicator circuit which emits level indicator signals indicating whether the material in the receptacle is rising or falling, thereby allowing automatic adjustment of the material flow rate into the receptacle up to a predetermined cut-off level. A flow control gate selector circuit connected to a variable timer and to a mode control circuit selects which flow control gates will be opened, and an alternator for every pair of flow control gates is connected to the mode control circuit and to the flow control gate selector circuits to vary the flow rate during different alternator periods when the dual-flow-different-rate mode is selected.

  Recently Added Patents
Descriptor storage and searches of k-dimensional trees
Precondition generating apparatus
Spark plug and method of manufacturing the same
Lubricating oil composition for refrigerators and compressors with the composition
Packaged semiconductor chips
Image forming apparatus, color-misregistration correcting method, and computer program product
Peptide biomarkers of cardiovascular disease
  Randomly Featured Patents
Block copolymer containing tetrahydrofuran block
Logic structures for ternary addition in logic devices
Tube pump, liquid ejecting apparatus, and method of driving tube pump
Ultra-wide band (UWB) artificial magnetic conductor (AMC) metamaterials for electrically thin antennas and arrays
Method and system for compiling sections of a computer program for multiple execution environments
Coffee capsule
Method for coupling storage devices of cluster storage
Agents for the diagnosis of demyelinating neuropathies, in particular multiple sclerosis
Wireless data communications using FIFO for synchronization memory
Shoulder holster