Patents Examined by Stephae A Shrieves
  • Fluidized powder valve system
    Patent number: 11027959
    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.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 8, 2021
    Assignee: MATSYS INC.
    Inventors: Roderick Rowland, Steven Lawver, Tony F. Zahrah