Powder handling system
OwnerC. Burton Carlson, Ernest R. Hughesinventors
Life of this patent
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Abstract
A powder handling system includes chambers for collecting mixing and loading of powder, with the collecting and loading chambers being so arranged as to empty into the mixing chamber. The collecting chamber is vacuumized, and is in valved, gas-flow communication with the loading chamber, to enable the establishment of a negative pressure in the latter during operation. This permits the introduction of a fresh charge of powder without the need to shut down the system. A vertical partition is provided to divide the mixing chamber into two compartments; by discharging powder from the collecting and loading chamber into different compartments, and by thereafter mixing the two streams, blend consistency may be ensured.
Claims10
A powder handling system comprising:
- at least one enclosure defining therewithin collecting, loading and mixing chambers, said collecting and loading chambers being in gas-flow communication with one another and each being in powder-flow communication with said mixing chamber, said enclosure having an inlet for admitting airborne powder into said collecting chamber, an outlet for the withdrawal of powder from said mixing chamber, and a displaceable portion therein permitting entry into said loading chamber;
- valve means for controlling gas flow between said collecting and loading chambers;
- and means for creating a vacuum within said collecting chamber, whereby, in operation of said system, powder may be drawn into said collecting chamber and discharged from said mixing chamber, and whereby the supply thereof may be replenished during such operation by placing a fresh charge of powder within said loading chamber while said valve means is so controlled as to establish a vacuum therein.
Dependencies are inferred from the claim text.