Patent ID: 6244566
Filing Date: 2001-06-12
Classification: F16K

Abstract:
A valve assembly comprising(a) a body (20) extending along an axis from a first end (21) to a second end (22), said body (20) having a passageway defined by inwardly facing wall sections, a shoulder (35) in the vicinity of said first end (21) extending inwardly from one of said inwardly facing wall sections (36);(b) a poppet (50) contained within said body and slideably moveable axially in said passageway, said poppet (50) extending from a first closed end (51) to a second open end (52) and having an annular seal (54) in the vicinity of said first closed end (51) engageable with said shoulder (35) and, when so engaged, cooperating with said closed end (51) to block the flow of fluid between said body first end (21) and second end (22), and at least one opening (57, 59) positioned between said annular seal (54) and said second open end (22), said opening (57, 59) permitting the flow of fluid through said body first end (21) to said body second end (22) when said annular seal (54) is spaced from said shoulder (35);(c) a spring yieldingly urging said poppet (50) toward said body shoulder (35); and(d) an actuator (80) encircling a portion of said body (20) and rotatable relative thereto, rotation of said actuator (80) on said body (20) causing axial movement of said poppet (50) within said body (20) to move said annular seal (54) from a position engaged to said shoulder (35) to a position spaced from said shoulder (35).