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:
Oct. 29, 2024
Filed:
Dec. 04, 2020
Applicant:
Swagelok Company, Solon, OH (US);
Inventors:
Cyprian Adair William Illing, Cleveland Heights, OH (US);
Peter C. Williams, Cleveland Heights, OH (US);
Christina Semkow, University Heights, OH (US);
Todd Johns, Solon, OH (US);
Assignee:
SWAGELOK COMPANY, Solon, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 8/22 (2006.01); C21D 1/06 (2006.01); C23C 8/26 (2006.01); C23C 8/30 (2006.01); C23C 8/32 (2006.01);
U.S. Cl.
CPC ...
C23C 8/22 (2013.01); C21D 1/06 (2013.01); C23C 8/26 (2013.01); C23C 8/30 (2013.01); C23C 8/32 (2013.01);
Abstract
A method for treating a workpiece made from a self-passivating metal and having a Beilby layer is disclosed. The method comprises exposing the workpiece to the vapors produced by heating a reagent having a guanidine [HNC(NH)] moiety and complexed with HCl to activate the workpiece for low temperature interstitial surface hardening.