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
Method and apparatus for communication channel error rate estimation
Lateral double diffused metal oxide semiconductor device and method of manufacturing the same
Documentation roadmaps and community networking for developers on large projects
Estrogen receptor ligands
Memory cell and memory cell array using the same
Contact lens material
Illuminating device
  Randomly Featured Patents
Aluminum cathode foil for electrolytic capacitors including a copper content
Receptor of tire pressure monitoring system for vehicles
Method and apparatus for thrombus removal using magnetic particles
Toy automatic pistol for ping pong balls
Method of forming a stressed passivation film using a microwave-assisted oxidation process
Device and method for performing cardiopulmonary resuscitation
Image processing apparatus and image processing method
Information recording medium with index header
Polysiloxane-polyoxyalkylene block copolymers as stabilizers in the production of urethane foam
Cluster storage using delta compression