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:
Mar. 27, 2018
Filed:
Mar. 11, 2015
Applicant:
Vmeca Co., Ltd, Seoul, KR;
Inventor:
Ho-Young Cho, Seoul, KR;
Assignee:
KOREA PNEUMATIC SYSTEM CO., LTD., Seoul, KR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 15/14 (2006.01); B65G 47/91 (2006.01);
U.S. Cl.
CPC ...
F16K 15/148 (2013.01); B65G 47/91 (2013.01);
Abstract
Disclosed is a check-valve assembly for use in a vacuum system. The check-valve assembly of the present invention comprises a body having a plurality of through-holes formed therein while having different space characteristics. As a valve member rotates with a shaft fixed to the body, intake holes of the valve member selectively communicate with the through-holes. Accordingly, the check-valve assembly of the present invention can more quickly respond to vacuum characteristics required on site, which is advantageous.