Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Bulk vending apparatus, system and method
System and method for identifying a target signal in an optical transport network frame structure
Wafer-level chip scale package
Electromagnetic probe for measuring properties of a subsurface formation
Three-dimensional holographic display using active shutter
Charge domain filter and method thereof
Transmitting apparatus and retransmitting method
  Randomly Featured Patents
Device, method and computer program product for measuring a physical or physiological activity by a subject and for assessing the psychosomatic state of the subject
Sport shoes
Separation of isomers of phenols and phenolic ethers
Decimating and cropping based zoom factor for a digital camera
Method of balancing batteries
Method of fabricating a MOS field effect transistor having plurality of channels
Device and method for enhancing transdermal flux of agents being sampled
Method for the production of 1,3,5-trifluoro-2,4,6-trichlorobenzene from fluorobenzene derivatives
Apparatus and method for an adjustable column
Driver authentication system and method for monitoring and controlling vehicle usage