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
Method for manufacturing semiconductor device
Hypallergenic mosaic antigens and methods of making same
Mask and method for forming the mask
Monitoring device, monitoring method and non-transitory computer readable medium
Pharmaceutical compositions of entacapone, levodopa and carbidopa with improved bioavailability
Gas cap removal tool
Method and apparatus for exercise monitoring combining exercise monitoring and visual data with wireless internet connectivity
  Randomly Featured Patents
Process for preparing polyether polyols
Circuit for generating a centered reference voltage for a 1T/1C ferroelectric memory
Induced regeneration and repair of damaged neurons and nerve axon myelin
Process for producing silicon carbide heating elements
Direct clutch control for dual clutch transmissions
Waterproof, breathable articles of apparel
Ethylene interpolymer polymerizations
Splicing, branching or terminating cable
Shaped articles with balsa wood and method of producing them
Semiconductor device having an organic semiconductor material