Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for controlled rate feeding of fluidized solids










Image Number 2 for United States Patent #4497598.

The vapor space above a bed of fluidizable particles in a chamber is variably controlled by extending a moveable conduit through the upper portion of the chamber to position the conduit inlet at a selectable height above the bed. Fluid flows uniformly up through the bed of particles to fluidize particles to a desired density in the fluid and at a desired rate of flow of such particles through the inlet to the conduit from the so adjusted volume of fluidization space in the chamber. The conduit is externally driven relative to the bed to maintain the particle fluidization volume and flow rate substantially constant. In apparatus form the pick-up conduit is carried by a piston member with sealing means, such as an O-ring, between the piston wall and the chamber sidewall. In an alternate embodiment the fluidizing gas is recirculated in a loop that includes the piston which is fluid permeable to bypass the conduit inlet. This permits a substantially constant rate of fluid flow to fluidize particles to a desired density, but permits independent control of the rate of flow of fluidized particles out of the chamber.








 
 
  Recently Added Patents
Memory controller including a hardware compression and decompression engine for managing system memory and graphical operations
Method and structure for image local contrast enhancement
Multi-wired antenna for mobile apparatus
Motion estimation for a video transcoder
Image forming apparatus
System and method for providing a path avoidance feature in a network environment
Light emitting diode having multi-cell structure and method of manufacturing the same
  Randomly Featured Patents
Semiconductor package having stacked dice and leadframes and method of fabrication
Routing in a data communication network
Tuneable semiconductor device with discontinuous portions in the sub-collector
Write compensation circuit and signal interpolation circuit of recording device
Method of manufacturing metal ceramic composite material
Biomagnetometer with whole head coverage of a seated reclined subject
Arc light
Disc wheel cover
Footbath
Magnetic composites for improved electrolysis