Siphon-valve stopper comprising a body enclosing carbon dioxide capsule

Claim 2

A siphon-valve stopper, adapted to be fitted to the neck of an ordinary glass bottle filled with a liquid, which comprises a body enclosing a CO2 capsule of a capacity sufficient for emptying a plurality of bottles filled with liquid, a pressure reducing device and a gas stop valve for discontinuing the delivery of gas into the bottle when the latter, equipped with the siphon-valve stopper, has been emptied, to permit the fitting of the siphon-valve stopper to another full bottle to be emptied, said pressure reducing device comprising a high-pressure chamber and a low-pressure chamber communicating with each other through a passage, said low-pressure chamber also communicating, during the operation of the siphon-valve stopper, with the interior of said bottle, a valve member for adjusting the gas output through said passage between said two chambers, said valve member being arranged in said high-pressure chamber and provided with a rod extending axially through said passage into said low-pressure chamber, a first resilient member constantly urging said valve member towards a valve seat provided on the high-pressure side of said passage for closing same, an expansion piston slidably mounted in said low-pressure chamber and registering with said passage, and a second resilient member constantly urging said expansion piston for engagement with the free end of said rod with a predetermined force opposed to and greater than that of said first resilient member in order to hold said valve member away from its seat, said force being such that said piston is in a state of balance under the action of said force and of a desired gas low-pressure in said low-pressure chamber, the improvement consisting in that said gas stop valve in operatively connected to said pressure reducing device, said gas stop valve consisting of said valve member and said valve seat constituting a valve unit, and of control members co-operating with said expansion piston in such a manner that when said control members are actuated in a first direction they move said expansion piston away from said end of said valve member rod, whereby said valve member engages its seat under the action of said first resilient member so as to close said valve unit and thus prevent the subsequent delivery of gas into said low-pressure chamber and therefore into said bottle, and whereby when said control members are actuated in another direction they release said expansion piston so that said expansion piston engages the and of said rod under the force of said second resilient member and pushes said rod and therefore said valve member away from its seat so as to open said valve unit, further comprising means for adjusting the force exerted by said second resilient member on said expansion piston said second resilient member consisting of a gaged coil spring reacting with one end against said expansion piston and with the other end against the end of adjustment screw constituting said adjustment means which is screwed in the body of said siphon-valve stopper and has its position adjustable in order to preset the compressive force of said coil spring, wherein said adjustment screw is formed with an axial tapped hole, and said gas stop valve control member comprises a control knob disposed externally of said siphon-valve stopper body and provided with a screw-threaded rod engaging said axial tapped hole of said adjustment screw, said screw-threaded rod of said control knob having a control rod extension provided at its free end with a stop flange, said expansion piston comprising on its side adjacent to said adjustment screw a retaining member surrounding said control screw and so arranged as to engage the stop flange of said control rod when said control knob is actuated in the direction corresponding to the closing of said gas stop valve in order to move said expansion piston away from the rod of said valve member.

Claim 3

A siphon-valve stopper, adapted to be fitted to the neck of an ordinary glass bottle filled with a liquid, which comprises a body enclosing a CO2 capsule of a capacity sufficient for emptying a plurality of bottles filled with liquid, a pressure reducing device and a gas stop valve for discontinuing the delivery of gas into the bottle when the latter, equipped with the siphon-valve stopper, has been emptied, to permit the fitting of the siphon-valve stopper to another full bottle to be emptied, said pressure reducing device comprising a high-pressure chamber and a low-pressure chamber communicating with each other through a passage, said low-pressure chamber also communicating, during the operation of the siphon-valve stopper, with the interior of said bottle, a valve member for adjusting the gas output through said passage between said two chambers, said valve member being arranged in said high-pressure chamber and provided with a rod extending axially through said passage into said low-pressure chamber, a first resilient member constantly urging said valve member towards a valve seat provided on the high-pressure side of said passage for closing same, an expansion piston slidably mounted in said low-pressure chamber and registering with said passage, and a second resilient member constantly urging said expansion piston for engagement with the free end of said rod with a predetermined force opposed to and greater than that of said first resilient member in order to hold said valve member away from its seat, said force being such that said piston is in a state of balance under the action of said force and of a desired gas low-pressure in said low-pressure chamber, the improvement consisting in that said gas stop valve is operatively connected to said pressure reducing device, said gas stop valve consisting of said valve member and said valve seat constituting a valve unit, and of control members co-operating with said expansion piston in such a manner that when said control members are actuated in a first direction they move said expansion piston away from said end of said valve member rod, whereby said valve member engages its seat under the action of said first resilient member so as to close said valve unit and thus prevent the subsequent delivery of gas into said low-pressure chamber and therefore into said bottle, and whereby when said control members are actuated in another direction they release said expansion piston so that said expansion piston engages the end of said rod under the force of said second resilient member and pushes Said rod and therefore said valve member away from its seat so as to open said valve unit, wherein said body comprises a vertical axial bore communicating with a dip-tube adapted, during the operation of the stopper, to extend within the bottle for drawing liquid therefrom, and a lateral spout formed with a liquid outlet duct ope-ning into said axial bore, and comprising in a manner known per se a liquid output control valve disposed in said axial bore and closed in the inoperative condition of said siphon-valve stopper, and a push button operatively connected to said valve to permit the operation thereof, said push-button being disposed at the upper portion of said body, and wherein said output control valve consists of a piston adapted to slide in a fluid-tight manner in said axial bore and formed at its lower portion with a blind axial hole communicating with said dip-tube and with a radial hole opening in close proximity of the bottom of said blind axial hole, said radial hole being adapted to be brought to a position in which it registers with the inner orifice of said spout outlet duct when said push-button is depressed, to permit the delivery of liquid through said output orifice, the radial hole of said piston and said orifice of said outlet duct having substan-tially the same dimensions, and wherein said dip-tube is secured to the piston of said control valve so that its internal duct constitutes the extension of the axial duct of said piston.

Claim 4

A siphon-valve stopper, adapted to be fitted to the neck of an ordinary glass bottle filled with a liquid, which comprises a body enclosing a CO2 capsule of a capacity sufficient for emptying a plurality of bottles filled with liquid, a pressure reducing device and a gas stop valve for discontinuing the delivery of gas into the bottle when the latter, equipped with the siphon-valve stopper, has been emptied, to permit the fitting of the siphon-valve stopper to another full bottle to be emptied, said pressure reducing device comprising a high-pressure chamber and a low-pressure chamber communicating with each other through a passage, said low-pressure chamber also communicating, during the operation of the siphon-valve stopper, with the interior of said bottle, a valve member for adjusting the gas output through said passage between said two chambers, said valve member being arranged in said high-pressure chamber and provided with a rod extending axially through said passage into said low-pressure chamber, a first resilient member constantly urging said valve member towards a valve seat provided on the high-pressure side of said passage for closing same, an expansion piston slidably mounted in said low-pressure chamber and registering with said passage, and a second resilient member constantly urging said expansion piston for engagement with the free end of said rod with a predetermined force opposed to and greater than that of said first resilient member in order to hold said valve member away from its seat, said force being such that said piston is in a state of balance under the action of said force and of a desired gas low-pressure in said low-pressure chamber, the improvement consisting in that said gas stop valve is operatively connected to said pressure reducing device, said gas stop valve consisting of said valve member and said valve seat constituting a valve unit, and of control members co-operating with said expansion piston in such a manner that when said control members are actuated in a first direction they move said expansion piston away from said end of said valve member rod, whereby said valve member engages its seat under the action of said first resilient member so as to close said valve unit and thus prevent the subsequent delivery of gas into said low-pressure chamber and therefore into said bottle, and whereby when said control members are actuated in another direction they release said expansion piston so that said expansion piston engages the end of said rod under the force of said second resilient member and pushes Said rod and therefore said valve member away from its seat so as to open said valve unit, wherein said body comprises a vertical axial bore communicating with a dip-tube adapted, during the operation of the stopper, to extend within the bottle for drawing liquid therefrom, and a lateral spout formed with a liquid outlet duct ope-ning into said axial bore, and comprising in a manner known per se a liquid output control valve disposed in said axial bore and closed in the inoperative condition of said siphon-valve stopper, and a push button operatively connected to said valve to permit the operation thereof, said push-button being disposed at the upper portion of said body, and wherein said output control valve consists of a piston adapted to slide in a fluid-tight manner in said axial bore and formed at its lower portion with a blind axial hole communicating with said dip-tube and with a radial hole opening in close proximity of the bottom of said blind axial hole, said radial hole being adapted to be brought to a position in which it registers with the inner orifice of said spout outlet duct when said push-button is depressed, to permit the delivery of liquid through said output orifice, the radial hole of said piston and said orifice of said outlet duct having substan-tially the same dimensions, and wherein said dip-tube is secured to the piston of said control valve so that its internal duct constitutes the extension of the axial duct of said piston.