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, 2013
Filed:
Aug. 06, 2008
Kazushi Furukawa, Osaka, JP;
Takao Murai, Osaka, JP;
Kazuyuki Matsubayashi, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An insertion hole () is provided in a packing () and a rotating shaft () is inserted into the insertion hole (). A sliding portion () forming an air clearance () is provided on the outside of the packing (). The rotating shaft () is inserted into the insertion hole () with a grease G applied to the circumferential surface thereof. When the rotating shaft () is inserted, the grease G is shaved off by the sliding portion () and a sufficient amount of the grease G is stored in the air clearance (). Consequently, frictional sound and heat are and thus reduced between the rotating shaft () and the packing (), the sliding portion () can come into tight contact with the rotating shaft (), thereby enhancing airtightness.