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:
May. 07, 2024
Filed:
Mar. 21, 2022
Applicant:
Smc Corporation, Tokyo, JP;
Inventors:
Takayuki Murai, Moriya, JP;
Takashi Arakawa, Nagareyama, JP;
Assignee:
SMC CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/3236 (2016.01); F16J 15/18 (2006.01); F16J 15/20 (2006.01); F16J 15/3272 (2016.01);
U.S. Cl.
CPC ...
F16J 15/20 (2013.01); F16J 15/188 (2013.01); F16J 15/3236 (2013.01); F16J 15/3272 (2013.01);
Abstract
A shaft sealing structure includes a plurality of V-packings that are stacked in multiple stages, and each of the V-packings is formed of a thick-walled annular top portion, a thin-walled inner side skirt portion, and a thin-walled outer side skirt portion. Adjacent ones of the top portions abut against each other, adjacent ones of the inner side skirt portions do not interfere with each other, and adjacent ones of the outer side skirt portions do not interfere with each other.