Patent ID: 9587750
Date: 2017-03-07
CPC Classifications: A62C,F16K

Claim:
1. A method of pressurizing a chamber in a fluid control valve having a diaphragm member, the method comprising: increasing an angle between a plane defined by a perimeter of an annular base portion and a radial projection extending inwardly from the annular base portion, the radial projection disposed within an internal chamber of the fluid control valve to abut an upper surface of the diaphragm member; seating the diaphragm member to form a gas chamber axially spaced from a liquid supply chamber; forming a gas seat between the gas and liquid chambers; decreasing the angle between the plane and the radial projection; and disengaging the diaphragm member from a surface of the chamber, the increasing of the angle being about a first pivot point and the decreasing of the angle being about a second pivot point that is different from the first pivot point.