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:
Aug. 20, 2024
Filed:
Feb. 26, 2020
Applicant:
Ntn Corporation, Osaka, JP;
Inventor:
Tomonori Yamashita, Aichi, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 7/02 (2006.01); B22F 3/06 (2006.01); B22F 3/16 (2006.01); F16C 9/04 (2006.01); B22F 3/03 (2006.01);
U.S. Cl.
CPC ...
F16C 7/02 (2013.01); F16C 9/04 (2013.01); B22F 3/03 (2013.01); B22F 3/16 (2013.01); F16C 2202/02 (2013.01); F16C 2220/08 (2013.01); F16C 2220/20 (2013.01);
Abstract
A sintered metal connecting rod () includes as an integrated body, a large end portion (), a small end portion (), and a stem portion (). In the sintered metal connecting rod (), division marks () of a molding die by a compression molding are formed between the large end portion () and the stem portion () and between the small end portion () and the stem portion () on one of front and back surface (to) in which the through-holes () are formed, respectively. The large end portion () and the stem portion () have a density difference of 4% or less, and the small end portion () and the stem portion () have a density difference of 4% or less.