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. 27, 2013
Filed:
Nov. 12, 2009
Applicants:
Chun Lin, McKinney, TX (US);
Roy Ronald Pelfrey, Sherman, TX (US);
Eric Alan Miller, McKinney, TX (US);
Inventors:
Chun Lin, McKinney, TX (US);
Roy Ronald Pelfrey, Sherman, TX (US);
Eric Alan Miller, McKinney, TX (US);
Assignee:
Emerson Process Management Regulator Technologies, Inc., Mckinney, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 43/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Redundant metal-to-metal seals for use with internal valves are described. A plug having redundant sealing functionality for use with a poppet of an internal valve includes a tapered surface to sealingly engage a seat of the poppet. Additionally, the plug includes a seal adjacent the tapered surface and disposed in a groove defined by the plug to sealingly engage the seat.