Johnson Outdoors has been granted a patent for a first stage pressure regulator. The regulator includes a valve body with an inlet and outlet, a pressure chamber, and a pressure compensation chamber. The regulator also features an inlet tubular union, a removable high pressure orifice body, a valve seat, a valve member, an expansion head, and a biasing member. The method of assembling the regulator involves seating the orifice body, securing the inlet tubular union, and utilizing the surrounding water to bias the valve member. GlobalData’s report on Johnson Outdoors gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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A first stage pressure regulator assembly
A recently granted patent (Publication Number: US11679849B2) describes a method for assembling a first stage pressure regulator. The method involves seating a removable high pressure orifice body in a passage of a valve body, securing an inlet tubular union into the inlet of the valve body, and limiting the axial motion of the orifice body within the inlet using the inlet tubular union. The valve body defines a pressure chamber and a pressure compensation chamber that is fluidly connected to the surrounding water.
The valve body also includes a valve seat and a valve member that is slidably carried within the pressure chamber. The valve member can move between an open state, allowing fluid flow between the inlet and outlet, and a closed state, preventing fluid flow. The valve member is biased towards the open state by an expansion head that is exposed to the pressure compensation chamber and acted upon by the surrounding water. A biasing member is also present within the compensation chamber to further bias the valve member towards the open state.
The removable high pressure orifice body has a T-shaped head at the upstream end, a conical protrusion at the downstream end, a slot on the top surface of the T-shaped head, a central passage through the valve body, and an annular groove in the valve body. The method may also involve seating the bottom surface of the T-shaped head on the inlet of the valve body and placing the top surface of the T-shaped head in contact with the inlet tubular union to secure the orifice body in the inlet. Additionally, an O-ring may be situated in the annular groove to provide sealing contact with the walls of the inlet.
Another variation of the method involves situating the head of the removable high pressure orifice body inside a cavity formed in the distal end of the inlet tubular union. This ensures that the orifice body is securely positioned within the inlet and limits its axial motion.
Overall, this patent describes a method for assembling a first stage pressure regulator that provides efficient fluid flow control and reliable operation. The use of a removable high pressure orifice body and the specific design features of the valve body and inlet tubular union contribute to the effectiveness of the pressure regulator.