Patent ID: 6202669
Filing Date: 2001-03-20
Classification: F15B,F15C,Y10T

Abstract:
A valve having a closed position and an open position, comprising:a port having an aperture;a sealing member adjacent the port, wherein the sealing member opens the aperture when the valve is in the open position and covers the aperture when the valve is in the closed position;a sealing surface disposed between the port and the sealing member to form a seal between the port and the sealing member when the valve is in the closed position; anda movable mount supporting the sealing surface to facilitate movement of the sealing surface with respect to at least one of the port and the sealing member, the movable mount comprising a flapper pad having a groove formed in the sealing member around the sealing surface, the flapper pad being configured to contact the port when the valve is in the closed position.