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.

Date of Patent:
May. 31, 2016

Filed:

Mar. 12, 2013
Applicant:

Emerson Process Management Regulator Technologies, Inc., McKinney, TX (US);

Inventor:

GuoLei Fan, Sichuan, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/12 (2006.01); G05D 16/06 (2006.01); G05D 16/02 (2006.01);
U.S. Cl.
CPC ...
G05D 16/0663 (2013.01); G05D 16/02 (2013.01); G05D 16/0638 (2013.01); Y10T 137/7801 (2015.04); Y10T 137/7825 (2015.04);
Abstract

A balanced pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve seat is disposed within the fluid passageway. A valve plug is at least partially disposed within the fluid passageway, the valve plug interacting with the valve seat to selectively open or close the fluid passageway. A retainer operatively connects the valve plug to a valve stem. A diaphragm separates a chamber from the fluid passageway and a balancing passage fluidly connects the fluid passageway with the chamber. A balancing tube extends outward, away from the retainer, fluidly connecting the fluid passageway with the balancing passage.


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