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US 2020/0002148 A1Published application
Fluidized Powder Valve System
AssigneeMatsys
InventorsRoderick Rowland, Steven Lawver, Tony F. Zahrah
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Abstract
A device is provided for the controlled and precise delivery of powders, including cohesive powders, based on a fluidization technique to directly reduce inter-particle friction and using a fluidizing gas as an air-bearing. The device preferably includes no moving parts, no sealing gaskets or sealing surfaces. Unlike mechanically actuated valves, the powders dispensed by the current device do not experience mechanical shearing, thereby reducing wear and thus increasing the service life of the apparatus.
Claims13
A device configured for the delivery and metering of powders or granular materials, comprising:
- an extension or container configured for holding the powders or granular materials to be dispensed,
- a fluidization funnel assembly, wherein the extension or container is operatively connected to the fluidization funnel assembly;
- and
- a fluidization stop valve assembly which is surrounded by an aperture or gap separating the fluidization funnel assembly and the fluidization stop valve assembly,
- wherein in a dispensing operation, the fluidization funnel assembly is configured to receive the powders or granular materials from the extension or container and lead the received powder or granular materials to the fluidization stop valve assembly, and
- wherein the dispensing operation is performed without any mechanical movement of parts.
3 more elements
Dependencies are inferred from the claim text.