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:
Jan. 26, 2010
Filed:
Aug. 23, 2005
Hiroshi Kanemitsu, Toyota, JP;
Masaharu Hatta, Toyota, JP;
Hiroshi Kanemitsu, Toyota, JP;
Masaharu Hatta, Toyota, JP;
Taiho Kogyo Co., Ltd., Toyota-shi, Aichi, JP;
Abstract
There is provided a semispherical shoe which is formed into a substantially semispherical shape by a convex semispherical surfaceand a flat end surface, the semispherical surface having a slidably contacting surfacethat is in slidable contact with a semispherical concave portion and non slidably contacting surfacesandthat are not in slidable contact with the concave portion. When the semispherical shoe is manufactured, first, after a semispherical material having a semispherical surface following the concave portion has been formed, the surface of the portion that is to be the slidably contacting surface on the semispherical surface is quenched to expand the quenched portion from the original surface of the semispherical surface, whereby the sliding surface is formed on the surface of the expanded portion, and the other portions are made the non slidably contacting portions.