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:
Aug. 25, 2015
Filed:
May. 25, 2010
Applicants:
Zhimin Sun, Tianjin, CN;
Chun Gao, Tianjin, CN;
Zhengyu Chen, Tianjin, CN;
Inventors:
Assignee:
EMERSON PROCESS MANAGEMENT (TIANJIN) VALVE CO., LTD., Tianjin, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/38 (2006.01); F16K 1/42 (2006.01); F16K 3/24 (2006.01); F16K 25/04 (2006.01); F16K 25/00 (2006.01);
U.S. Cl.
CPC ...
F16K 1/42 (2013.01); F16K 3/246 (2013.01); F16K 25/04 (2013.01); F16K 1/385 (2013.01); F16K 25/00 (2013.01);
Abstract
A valve trim apparatus comprises a valve seat () and a closure member () to operatively engage the valve seat (). One of the closure member () and the valve seat () includes a plurality of annular ribs (), and at least one of the valve seat () and the closure member () defines at least one groove () to be positioned between at least two of the annular ribs () to receive material from a sealing surface () between the closure member () and the valve seat () when the closure member () is sealingly engaged with the valve seat ().