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:
Oct. 03, 2023
Filed:
Mar. 27, 2019
Applicant:
Smc Corporation, Chiyoda-ku, JP;
Inventors:
Hisashi Yajima, Tsukuba, JP;
Motohiro Sato, Toride, JP;
Tsuyoshi Sasaki, Tsukubamirai, JP;
Koji Hara, Tsukubamirai, JP;
Kouichirou Kanda, Tsukuba, JP;
Assignee:
SMC CORPORATION, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23Q 3/154 (2006.01); H01F 7/02 (2006.01);
U.S. Cl.
CPC ...
B23Q 3/1546 (2013.01); H01F 7/0252 (2013.01); B23Q 2703/02 (2013.01);
Abstract
A magnetic chuck has a piston assembly that contains a cylindrical permanent magnet and a core yoke. The piston assembly is movable inside a cylinder tube. The permanent magnet is provided on the outer periphery of the core yoke and is magnetized in the radial direction.