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:
Jul. 08, 2014
Filed:
Mar. 22, 2011
Applicants:
Satoshi Nomura, Toyota, JP;
Masaharu Hatta, Toyota, JP;
Hiroshi Kanemitsu, Toyota, JP;
Inventors:
Assignee:
Taiho Kogyo Co., Ltd., Toyota-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hemispherical shoe (sliding member)has a flat sliding surface, which is quenched to form a quenched portion. A part of the quenched sliding surface is partially annealed to form an annealed portion. When an oil film pressure acts on the sliding surface, the annealed portionis deformed by pressure so that the surface thereof has a concave portionA. In the annealed portion, a remaining quenched portionmay remain at the center part thereof. The concave portionA can be used as an oil reservoir or an oil flow path, so that an excellent seizure resistance can be ensured.