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. 09, 2013
Filed:
May. 23, 2008
Naoto Ootake, Yokosuka, JP;
Makoto Matsuo, Yokohama, JP;
Naoto Ootake, Yokosuka, JP;
Makoto Matsuo, Yokohama, JP;
Imott Corporation, Kanagawa, JP;
Abstract
The present invention relates to a spacer member reducing fretting wear and fastened structures using a spacer member, furthermore, the present invention provides a spacer membersandwiched between contact surfacesof contact materialssubject to abrasion and suffering from wear and provided with sliding and vibrating surfacescharacterized in that the sliding or vibrating surfaces () of the spacer memberhave a higher hardness than at least one of the contact surfaces () of the first contact material () and the second contact material (') and the sliding or vibrating surfaces () of the spacer memberhave a lower coefficient of friction and a higher flatness than at least one of the contact surfaces () of the first contact material () and the second contact material (′), whereby the sliding or vibrating surfacesof the spacer memberdo not easily wear down the contact surfacesof the contact materials