The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2021
Filed:
Jun. 29, 2018
Applicant:
Matsys Inc., Sterling, VA (US);
Inventors:
Roderick Rowland, Fairfax, VA (US);
Steven Lawver, Sterling, VA (US);
Tony F. Zahrah, Fairfax Station, VA (US);
Assignee:
MATSYS INC., Sterling, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67C 11/06 (2006.01); B29C 31/06 (2006.01); B29C 64/321 (2017.01); B29K 105/00 (2006.01); G01F 19/00 (2006.01); B33Y 40/00 (2020.01);
U.S. Cl.
CPC ...
B67C 11/06 (2013.01); B29C 31/06 (2013.01); B29C 64/321 (2017.08); B29K 2105/251 (2013.01); B33Y 40/00 (2014.12); G01F 19/00 (2013.01);
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.