Patent ID: 8910920

Claim:
A shutter valve for regulating pressure and controlling fluid flow, comprising: an actuator ring, the actuator ring further comprising a plurality of gear teeth, the gear teeth driven by a mating gear; a plurality of arm pin bosses, each pin boss affixed within an inside circumference of the actuator ring, the arm pin boss further comprising a hinge pin aperture; three or more pivot arms, each pivot arm having a first end and a second end, the first end mounted to a hinge pin aperture of an arm pin boss; three or more obturator elements, each obturator element comprising: a) a petal shape structure including a tongue and groove feature along at least a portion of an outside circumference thereof; b) a hook element located at an apex of said petal shape structure of each obturator element; and c) a hinged connection to a second end of a pivot arm; and a housing defining a cavity for holding the actuator ring, the pivot arms and the obturator elements.