Patent ID: 8579249
Filing Date: 2013-11-12
Classification: F15B,F16K,Y10T

Abstract:
1. A biasing device for use with a piston actuator of a fluid valve, the biasing device comprising: a tubular seat member having an exterior annular flange at a first end of a hollow tube and an interior flange at a second end of the hollow tube; a tubular retention member having a plate at a first end, the plate extending laterally beyond external edges of the tubular retention member and forming an external flange about a perimeter of the first end of the tubular retention member; a tubular seat bracket having a hollow center portion, an external annular flange at a first end of the hollow center portion, and an internal flange at a second end of the hollow center portion; a tubular retention extension that is removably attached to the tubular retention member, the tubular retention extension lengthening the tubular retention member, and a biasing element disposed between the external annular flange of the tubular seat member and the external annular flange of the tubular seat bracket; wherein the tubular retention member is partially disposed within the tubular seat member, the tubular retention member passing through an opening in the inner flange of the tubular seat member, the plate being larger than the opening in the inner flange of the tubular seat member, the tubular retention member being partially disposed within the tubular seat bracket, the tubular retention member passing through an opening in the inner flange of the tubular seat bracket, and the biasing member being seated against the exterior annular flange of the tubular seat member and against the exterior annular flange of the tubular seat bracket.