Patent ID: 9152151
Filing Date: 2015-10-06
Classification: E21B,G05D,Y10T

Abstract:
1. An in-line back pressure regulator, comprising: a regulator body defining a sensing chamber and an outlet of a fluid flow path of the back pressure regulator, the outlet being in fluid communication with the sensing chamber via a first flow passageway in the regulator body; a bonnet coupled to the regulator body, the bonnet defining an inlet of the fluid flow path and a loading chamber disposed between the sensing chamber and the inlet; a pressure sensor disposed between the inlet and the sensing chamber, the pressure sensor having a first end defining a first pressure sensing surface in fluid communication with the sensing chamber and a second end defining a second pressure sensing surface opposite the first pressure sensing surface in fluid communication with the inlet, the pressure sensor having a pressure sensor body extending through the loading chamber, the pressure sensor body having an aperture formed between the first end and the second end to define a second flow passageway to fluidly couple the inlet and the sensing chamber; wherein the pressure sensor defines a retainer cavity; and a flow control assembly received within the retainer cavity, the flow control assembly comprising: