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:
Sep. 01, 1998
Filed:
Apr. 25, 1997
Takashi Hayashi, Kawasaki, JP;
Kuroda Seiko Co., Ltd., Kawasaki, JP;
Abstract
A mechanical assembly of shaft and static pressure bearing including a static pressure bearing mechanism formed in a shaft. The bearing mechanism includes an air supply chamber, a plurality of air conduits, a plurality of porous bodies each secured in a respective one of the plurality of air conduits, a glass layer applied on outer surfaces of the porous bodies as well as on an end face of the shaft, a plurality of pockets formed in the glass layer at positions corresponding to the air conduits, and a plurality of orifices formed in each of the plurality of pockets such that a gap formed between the glass layer and a bearing main body is communicated with the air supply chamber by the pockets, orifices and porous bodies. The pockets and orifices can be formed simultaneously by a laser machining. A distribution in pressure within a gap formed between the glass layer and a bearing main body can be uniform.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile