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. 28, 2026
Filed:
Dec. 03, 2021
Edwards Japan Limited, Yachiyo, JP;
Edwards Japan Limited, Yachiyo, JP;
Abstract
There is obtained a vacuum pump which suppresses an influence on external piping caused by a contact failure of a rotor during rotation of the rotor. A temperature rise ringis provided in the vacuum pump, an outlet portto which the external piping is connected is connected to the temperature rise ring, and a rotational force is directly or indirectly applied to the temperature rise ringdue to the contact failure of the rotor during the rotation of the rotor. In addition, a rotation suppression means (a holeand a bolt) for suppressing rotation of the temperature rise ringby the above-described rotational force is provided separately from a connection portion between the temperature rise ringand a casing (outer tube).