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:
Jul. 16, 2019
Filed:
Jul. 11, 2016
Applicant:
Presys.co., Ltd, Suwon-si, KR;
Inventors:
Bae-Jin Kim, Suwon-si, KR;
Ki Sun Choi, Suwon-si, KR;
Kang Hyun Kim, Suwon-si, KR;
Sang Min Kim, Suwon-si, KR;
Assignee:
PRESYS.CO., LTD, Suwon, KR;
Primary Examiner:
Int. Cl.
CPC ...
F16K 51/02 (2006.01); F16K 3/02 (2006.01); F16K 3/18 (2006.01); F16K 3/314 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
F16K 51/02 (2013.01); F16K 3/02 (2013.01); F16K 3/0245 (2013.01); F16K 3/18 (2013.01); F16K 3/314 (2013.01); H01L 21/02 (2013.01); H01L 21/02367 (2013.01);
Abstract
A bidirectional gate valve including: a blade () installed in a valve housing () having first and second passage holes () to open/close the first and second passage holes (); a shaft () coupled to a lower portion of the blade (); a first driving block () including: a first cylinder () which is provided under the valve housing () and into which the shaft () is inserted; a first piston () installed inside the first cylinder () and coupled to a lower portion of the shaft() to vertically move the shaft () according to pressure change inside the first cylinder ().