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. 30, 2025
Filed:
May. 12, 2022
Oiles Corporation, Fujisawa, JP;
Akihiko Ito, Fujisawa, JP;
Hirotsugu Tomita, Fujisawa, JP;
Oiles Corporation, Fujisawa, JP;
Abstract
Proposed are a gas restriction structure constituting an aerostatic bearing configured to eject a gas obliquely from an ejection port end of a pocket hole part, while reducing an area of the restrictor, and an aerostatic bearing. A gas restriction structure used for an aerostatic bearing made of a single base material and configured to eject a compressed air for supporting a collar in a non-contact state may include a gas flow passage part communicating with a gas supply source for supplying the compressed air. The structure may also include a pocket hole part in which an ejection port end configured to communicate with an outlet end of the gas flow passage part faces the collar. A part of the pocket hole part and a part of the gas flow passage part overlap with each other as seen from an ejection port end side of the pocket hole part.