Patent ID: 9410636
Filing Date: 2016-08-09
CPC Classification: E03B,F16K,G05B,G05D,Y02A,Y10T

Claim Text:
1. A flow valve assembly comprising: a piston operable between an open position and a closed position; a controller mechanically coupled to the piston to operate the piston between the open position and the closed position when the rate of fluid flow exceeds a predetermined value, the controller comprising; a first linkage member operable between a first position in which the piston is in the open position, and a second position in which the piston is in the closed position; a second linkage member having a first end pivotally coupled to the first linkage member to move the first linkage between the first position and the second position and a second end; a first biasing member having a first end coupled to the second linkage member between the first end and the second end a second end connected to a support such that, when the first linkage member is in the second positon, the first biasing member biases the first linkage member toward the first position.