Patent ID: 6019115
Filing Date: 2000-02-01
Classification: F16K,Y10T

Abstract:
A valve, comprising:an outer housing having a chamber extending in a longitudinal direction, said housing having an orifice located at one end of said chamber;a poppet within said chamber movable in said longitudinal direction between an open and closed position, said poppet being adapted to seal said orifice in said closed position;a spring member for urging said poppet in said longitudinal direction away from said orifice to said open position;an externally adjustable threaded member extending through said housing and into said chamber;a retainer for restricting the movement of said poppet in relation to said orifice in said longitudinal direction, said retainer being associated with said threaded member such that turning said threaded member causes a first angled surface on said retainer to move longitudinally relative to said threaded member and laterally relative to said chamber;a second angled surface located on said poppet which is urged by said spring member substantially toward said first angled surface, wherein said first and second angled surfaces are adapted to engage one another and slide with respect to one another along substantially the same plane; andwherein by externally turning the threaded member, the retainer can be moved longitudinally in relation to said threaded member, and laterally in relation to said chamber, and the location of said first angled surface can be adjusted and set to a predetermined position, wherein the position of said first angled surface determines the maximum travel distance of said poppet in said longitudinal direction, whereby said position of said first angled surface helps determine the threshold flow rate of said valve.