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, 2020
Filed:
Aug. 26, 2019
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventor:
Masahiro Murota, Yamanashi-ken, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 32/06 (2006.01); B23B 19/02 (2006.01); B23B 3/06 (2006.01); B23Q 1/01 (2006.01); B23Q 11/00 (2006.01); F16C 33/72 (2006.01); B23Q 1/70 (2006.01); F16C 19/54 (2006.01);
U.S. Cl.
CPC ...
B23B 3/06 (2013.01); B23Q 1/015 (2013.01); B23Q 1/70 (2013.01); B23Q 11/005 (2013.01); B23Q 2220/006 (2013.01); F16C 19/545 (2013.01); F16C 32/06 (2013.01); F16C 33/72 (2013.01);
Abstract
In a spindle device, a movable member is provided on a cover member, which is attached to a spindle housing and covers the outer peripheral surface of a chuck portion which is a disk-shaped rotating member. The movable member is moved by a gas flowing through a flow passage formed in the cover member and thereby brought into contact with the chuck portion. The movable member is electrically connected to a ground.