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A filling machine assembly (10) for filling a beverage container (12), such as a bottle or can, with a beverage, such as a carbonated drink, juice or water. The filling machine (10) includes a support housing (14) having an inner fluid chamber (20) for supplying the beverage to be discharged into th

A filling machine assembly (10) for filling a beverage container (12), such as a bottle or can, with a beverage, such as a carbonated drink, juice or water. The filling machine (10) includes a support housing (14) having an inner fluid chamber (20) for supplying the beverage to be discharged into the container (12). A valve housing (22) is mounted to the bottom of the support housing (14) for controlling the discharge of the beverage and a control device (24) is mounted to the top of the support housing (14). A vent tube (26) is actuated upward and downward via the control device (24) and extends into the valve housing (22). A support tube (34) extends between the control device (24) and the valve housing (22) and has a bore (36) surrounding the vent tube (26). An actuation device (42) moves the vent tube (26) within the bore (36) relative to the support tube (34) a predetermined stroke between a filling position and a non-use position. An upper tube seal (44) is in sealing engagement between the control device (24) and the vent tube (26) with the bore (36) of the support tube (34) open to the upper seal (44). A lower tube seal (46) is in sealing engagement between the support tube (34) and the vent tube (26) to seal the bore (36) of the support tube (34) between the upper (44) and lower (46) seals. The assembly is characterized by a chamber sealing mechanism (52) selectively sealing the bore (36) between the upper (44) and lower (46) tube seals from the inner fluid chamber (20) to equalize operating pressures against the upper (44) and lower (46) tube seals during the movement of the vent tube (26) between the filling and non-use positions.

대표청구항 ▼

[ What is claimed is:] [1.] A filling machine assembly (10) for filling a container (12) with a fluid material, said assembly comprising:a support housing (14) having an upper surface (16) and a lower surface (18) defining an inner fluid chamber (20) for supplying the fluid material to be discharged

[ What is claimed is:] [1.] A filling machine assembly (10) for filling a container (12) with a fluid material, said assembly comprising:a support housing (14) having an upper surface (16) and a lower surface (18) defining an inner fluid chamber (20) for supplying the fluid material to be discharged into the container (12);a valve housing (22) mounted to said lower surface (18) of said support housing (14) for controlling the discharge of the fluid material;a control device (24) mounted to said upper surface (16) of said support housing (14);a vent tube (26) having a first end disposed within said control device (24) and a second end extending into said valve housing (22);a support tube (34) defining a through bore (36) extending between said control device (24) and said valve housing (22) and surrounding said vent tube (26);an actuation device (42) for moving said vent tube (26) within said bore (36) relative to said support tube (34) a predetermined stroke between a filling position and a non-use position;an upper tube seal (44) in sealing engagement between said control device (24) and said first end of said vent tube (26), said bore (36) of said support tube (34) being open to said upper seal (44); anda lower tube seal (46) in sealing engagement between said support tube (34) and said second end of said vent tube (26) to seal said bore (36) of said support tube (34) between said upper (44) and lower (46) seals;said assembly characterized by a chamber sealing mechanism (52) for selectively sealing said bore (36) between said upper (44) and lower (46) tube seals from said inner fluid chamber (20) to equalize operating pressures against said upper (44) and lower (46) tube seals during said movement of said vent tube (26) between said filling and non-use positions.