Abstract: The system includes a spout and a portable handheld activator insertable around the spout. The spout includes a valve member made of a magnetically-conductive material. The valve member is movable between a closed position and an opened position so as to close or open a fluid passage inside the spout. The spout also includes a core plate made of a magnetically-conductive material. The activator includes a housing made of a magnetically-conductive material, and at least one coil located into the housing to selectively generate an electromagnetic field capable of moving the valve member to the opened position against a spring force biasing the valve member into the closed position. In use, the spout and the activator are configured and disposed so that the electromagnetic field, using only a relatively small amount of electrical energy, creates a substantially uninterrupted toric magnetic circuit for actuating the valve member.

Abstract: The system includes a spout and a portable handheld activator insertable around the spout. The spout includes a valve member made of a magnetically-conductive material. The valve member is movable between a closed position and an opened position so as to close or open a fluid passage inside the spout. The spout also includes a core plate made of a magnetically-conductive material. The activator includes a housing made of a magnetically-conductive material, and at least one coil located into the housing to selectively generate an electromagnetic field capable of moving the valve member to the opened position against a spring force biasing the valve member into the closed position. In use, the spout and the activator are configured and disposed so that the electromagnetic field, using only a relatively small amount of electrical energy, creates a substantially uninterrupted toric magnetic circuit for actuating the valve member.

Abstract: A liquid control valve for use with effervescent liquids having a valve seat, cylinder, and plunger wherein the plunger is moveable in the cylinder from a closed position where the plunger is seated against the valve seat to an open position in which the plunger is removed from the valve seat; the plunger having a series of openings through or along the length of the plunger whereby the effervescent liquid will flow through or by the plunger when the plunger is removed from the valve seat; means to move said plunger away from the valve seat and return said plunger to the valve seat in response to a manual or automated command.