Patent ID: 6742556
Filing Date: 2004-06-01
Classification: B67C

Abstract:
A filler valve assembly for use in a filling machine for filling containers comprising:a first hollow member; an elongated hollow filler tube secured to the first housing member and having an outlet through which liquid exits when filling containers; a second housing member; an elongated piston having an enlarged portion secured to the second housing member and disposed interior of the filler tube, the piston being axially moveable with respect to the filler tube to move the enlarged portion of the piston from a first position, in which the enlarged portion engages the outlet of the filler tube to form a substantially liquid-tight seal, to block the flow of liquid out from the filler tube, to a second position, in which the enlarged portion is spaced away from the outlet of the filler tube to permit the flow of liquid out from the filler tube; the outlet of the filler tube and the enlarged portion of the piston being formed of a metal so that the substantially liquid-tight seal is formed solely by metal-to-metal contact between the filler tube outlet and the enlarged portion of the piston.