Abstract The filling devices in an apparatus which fills beer cans orbit about a vertical axis and have upright housings supporting cylindrical centering members which carry deformable gaskets for the mouths of cans. Such cans are supported by a conveyor which orbits with the filling devices and is movable up and down or is held against vertical movement during rotation with the filling devices. The introduction of liquid into the cans takes place subsequent to introduction of a compressed gas, and such gas can be used to bias the gaskets against the mouths of cans during filling. When the filling of a can is completed, the pressure in its interior is increased to facilitate separation from the respective gasket. That supply of beer which remains in a channel of the housing on closing of the beer-admitting valve can be expelled in response to expansion of gas in a chamber which receives such gas by way of the container and is sealed from the container by beer in the channel. The expansion of gas in the chamber takes place in response to opening of a valve which reduces the pressure of gas above the body of liquid in the container.
In an apparatus for filling cans or analogous containers with a liquid, a filling device comprising an upright housing; an annular sealing member mounted for up-and-down movement along said housing and having in the region of its lower end annular gasket means movable into sealing engagement with the mouth of a container therebelow, said housing having a surface at the underside thereof and liquid-admitting channel means having a discharge end in said surface; an upright holder supported by and extending downwardly from said housing; and a float mounted for lengthwise movement along said holder and having an external surface which engages said surface of said housing to seal said channel means from the interior of a sealingly engaged can when said channel means has admitted such quantities of liquid that the float rises by buoyancy and moves said external surface into engagement with the surface of said housing.
Claim 2
Dependent Claim
148 words
In an apparatus for filling cans or analogous containers with a liquid, a filling device comprising an upright housing; an annular sealing member mounted for up-and-down movement along said housing and having in the region of its lower end annular gasket means movable into sealing engagement with the mouth of a container therebelow, said housing having a surface at the underside thereof and liquid-admitting channel means having a discharge end in said surface; an upright holder supported by and extending downwardly from said housing; and a float mounted for lengthwise movement along said holder and having an external surface which engages said surface of said housing to seal said channel means from the interior of a sealingly engaged can when said channel means has admitted such quantities of liquid that the float rises by buoyancy and moves said external surface into engagement with the surface of said housing.
Claim 3
Dependent Claim
15 words
A filling device as defined in claim 1, wherein said surfaces are of conical shape.
Claim 4
Dependent Claim
35 words
A filling device as defined in claim 1, wherein said holder is hollow and is arranged to convey a gas into and from the interior of a container which is engaged by said gasket means.
Claim 5
Dependent Claim
40 words
A filling device as defined in claim 1, wherein said external surface of said float is arranged to direct the liquid issuing from said channel means against the internal surface of the container which is engaged by said gasket means.