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:
Apr. 23, 2024
Filed:
Aug. 05, 2019
Daming Wang, Carmel, IN (US);
Ardy S Kleyman, Carmel, IN (US);
Kasey D Hughes, Crawfordsville, IN (US);
Daming Wang, Carmel, IN (US);
Ardy S Kleyman, Carmel, IN (US);
Kasey D Hughes, Crawfordsville, IN (US);
Praxair S.T. Technology, Inc., North Haven, CT (US);
Abstract
A fluid tight, fully-densified, coating is prepared by a High Velocity Oxygen Fuel ('HVOF') process that dilutes oxygen with an inert gas. The inert gas is pre-mixed with oxygen prior to the oxygen entering a combustion chamber. The resultant flame temperature is lowered a controlled amount to eliminate, minimize or reduce oxidation of power feedstock that is injected into the thermal spray torch. The ability to reduce the flame temperature allows a relatively smaller particle feedstock to be deposited without significant oxidation. The dilution process creates an as-deposited fully-dense, fluid tight coating.