Patent ID: 9206911
Filing Date: 2015-12-08
Classification: F16K

Abstract:
1. A shutter valve for regulating pressure and controlling fluid flow, comprising: an actuator ring that rotates about a midpoint; three or more obturator elements, wherein each obturator element includes a first surface opposing a second surface, and wherein each obturator element is movably coupled to the actuator ring; a housing defining a cavity for holding the actuator ring and the obturator elements, the housing including a first planar surface that faces the first surface of each obturator element and further including a second planar surface that faces the second surface of each obturator element; a plurality of wipers, each wiper comprising a seal material disposed on the first or second surface of the obturator elements such that each wiper contacts the first or second planar surface of the housing, wherein each wiper acts as a seal disposed between the first or second surface of the obturator elements and the first or second planar surface of the housing; curved grooves disposed on the first and second planar surfaces of the housing, wherein each curved groove is adapted for receiving a wall seal, wherein each curved groove extends along an arc followed by one end of each obturator element when it moves between an open and closed position; a plurality of wall seals, wherein each wall seal is disposed within each curved groove, wherein when a corresponding obturator element moves between an open and closed position, one end of the obturator element contacts the wall seal, which acts as a seal disposed between the wall seal and the obturator element; and wherein the seals created by the plurality of wipers and the plurality of wall seals prevent egress of fluid into at least a portion of the cavity of the housing.