Fluid control apparatus

Claim 1

Fluid control apparatus comprising in combination: mounting means; at least one inlet check valve assembly mounted on said mounting means in fluid flow communication with said inlet check valve assembly, each of said check valve assemblies including a movable valve member and a valve seat cooperable to permit passage of fluid therethrough in a predetermined direction; filter means operatively associated with each of said check valve assemblies for removing particulate matter from liquid passing through said check valve assemblies; and a pulse damper device comprising a primary housing interior defined by said mounting means in fluid flow communication with said outlet check valve assembly and a dispenser orifice formed in said mounting means, a piston including a ram portion slidably positioned in said primary housing interior and responsive to fluid pressure in said primary housing interior to move away from said dispenser orifice, a coil compression spring continuously urging said piston toward said dispenser orifice, and a spring housing mounted on said mounting means for accomodating said coil compression spring and having a bearing surface maintaining said spring in compression against an element of said piston, seal means disposed between said primary housing and said spring housing and having an aperture within which said piston ram portion is slidably disposed, said seal means maintaining the housing interior, the coil compression spring and the piston element out of contact with said fluid.