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:
Sep. 29, 2026
Filed:
Dec. 08, 2023
L.e. Jones Company, Menominee, MI (US);
Cong Yue Qiao, Menominee, MI (US);
David M Doll, Fort Worth, TX (US);
L.E. JONES COMPANY, Menominee, MI (US);
Abstract
A powder admixture useful for making a sintered engine part such as a valve seat insert includes a first iron-base powder and second iron-base powder wherein the first iron-base powder has a higher hardness than the second iron-base powder, the first iron-base powder including, in weight percent, 1-2% C, 10-25% Cr, 5-20% Mo, 15-25% Co, and 30-60% Fe, and the second iron-base powder including a vanadium-free tool steel powder such as a vanadium-free tool steel comprising, in weight %, 1-1.5% C, 3-15% Cr, 5-7% Mo, 3-6% W, and 60-85% Fe, the second iron-base powder further comprising vanadium carbide particles in an amount sufficient to reduce adhesive wear. The powder admixture can be sintered to form a sintered engine part optionally infiltrated with copper.