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:
Jan. 28, 2025
Filed:
Nov. 30, 2020
Uchicago Argonne, Llc, Chicago, IL (US);
Wenhua Yu, Darien, IL (US);
Dileep Singh, Naperville, IL (US);
David M. France, Lombard, IL (US);
Wenchao Du, Willowbrook, IL (US);
UCHICAGO ARGONNE, LLC, Chicago, IL (US);
Abstract
A method of depowdering objects (e.g., heat exchangers) having small and/or complex internal geometries and manufactured using an additive manufacturing technique performed with a powder material. The method includes applying a pressurized fluid to the objects via a pressurized fluid applicator operatively coupled to the object, thereby removing a portion of unbound powder material on or in the object. The method further includes applying vortex vibration to the object via a vortex vibration source operatively coupled to the object, thereby loosening a portion of the unbound powder material remaining on or in the object, and applying the pressurized fluid to the object via the pressurized fluid application, thereby removing a portion of the loosened, unbound powder material from the object. The latter two applying steps are repeated until a specified amount of the unbound powder material has been removed from the object.