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:
Oct. 25, 2016

Filed:

Apr. 15, 2014
Applicant:

Tescom Corporation, Elk River, MN (US);

Inventors:

Gordon Cameron Muir, Maple Grove, MN (US);

Timothy Patrick Franzwa, St. Cloud, MN (US);

Assignee:

TESCOM CORPORATION, Elk River, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 7/00 (2006.01); G05D 16/20 (2006.01); G05D 16/06 (2006.01); F16K 7/12 (2006.01); G05D 7/01 (2006.01);
U.S. Cl.
CPC ...
G05D 16/2093 (2013.01); G05D 16/0636 (2013.01); G05D 16/2053 (2013.01); F16K 7/12 (2013.01); G05D 7/012 (2013.01);
Abstract

A method of controlling a regulator with a pilot device includes periodically detecting an outlet pressure at an outlet of the regulator with a feedback pressure sensor. The method also includes comparing each detected outlet pressure with a set-point control pressure. Additionally, the method includes opening an exhaust valve when a detected outlet pressure is greater than the set-point control pressure so that a loading gas, which is applied to a top surface of a diaphragm of the regulator, exhausts out through the exhaust valve to reduce loading on the diaphragm. The method further includes sensing a loading pressure in the outlet port with a loading pressure sensor after opening the exhaust valve and comparing the loading pressure to a predetermined minimum threshold pressure. When the loading pressure is equal to or less than the predetermined minimum threshold value, the method includes closing the exhaust valve.


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