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:
Dec. 21, 2021
Filed:
Apr. 06, 2017
Applicant:
Smc Corporation, Chiyoda-ku, JP;
Inventors:
Assignee:
SMC CORPORATION, Chiyoda-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B 37/02 (2006.01); F16H 25/24 (2006.01); F16B 37/12 (2006.01);
U.S. Cl.
CPC ...
F16B 37/02 (2013.01); F16H 25/24 (2013.01); F16B 37/12 (2013.01);
Abstract
A layered nut () comprises a plurality of thin nuts () formed with through-holes () having almost the same diameter. On the inner peripheral surface of each thin nut (), a plurality of screw threads () are formed at predetermined angular spacing so as to protrude toward the inside of the through-hole (). In this case, the thin nuts () are layered along the direction of the central axis () so that the through-holes () become approximately coaxial. The outer peripheral surfaces of the layered thin nuts () are subjected to laser welding or the like, thereby joining the thin nuts () and completing the layered nut ().