Gas assisted flow tube and filling device
AssigneeMatsys
InventorsRoderick Rowland, Tony F. Zahrah, Rajkumar Raman, Phillip A. Parrish
Life of this patent
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Abstract
A gas-assisted flow and filling device for transporting particulate material and filling die cavities includes a source of low-pressure gas for delivering gas to a chamber that is separated from a fluidizing chamber by a porous distributor plate which permits the gas to flow through the particulate material and out a vent screen so that the particulate material is permitted to flow out of the fluidizing chamber essentially free of gas and wherein the pressure of the gas delivered to the fluidizing chamber is sufficient to provide a gas bearing to said particulate material adjacent the distributor plate, but not high enough to cause turbulence in said fluidizing chamber.
Claims8
A method of transporting particulate material comprising the steps of:
- delivering said particulate material to a fluidizing chamber;
- delivering low-pressure gas to a gas chamber;
- permitting said low-pressure gas to pass through a porous plate from said gas chamber into said fluidizing chamber, the pressure of said gas in said fluidizing chamber being sufficient to provide a gas-bearing for said particulate material adjacent said porous plate, but not high enough to cause turbulence in said fluidizing chamber;
- and,
- venting said gas from said fluidizing chamber so that said fluidized particulate material is permitted to flow out of said fluidizing chamber essentially free of said gas.
Dependencies are inferred from the claim text.