초록 ▼

Fill seal structures having an elastomeric seal element contained in a housing for use with a liquid filling machine for bottles having fill necks, wherein lifting mechanisms are employed to move the bottles upwardly toward sealing faces of fill ports on the fill bowl of the machine, and wherein the

Fill seal structures having an elastomeric seal element contained in a housing for use with a liquid filling machine for bottles having fill necks, wherein lifting mechanisms are employed to move the bottles upwardly toward sealing faces of fill ports on the fill bowl of the machine, and wherein the seal structures are designed to provide for fluid tight seals between the top open ends of the bottle necks and the sealing faces, wherein the seal element consists of a generally tubular wall providing a fluid flow passage having an outlet end section and a complex inlet end section, the outlet end section being formed to provide a first contact surface for engaging and sealing against the top open neck end of a bottle, the inlet end section having a generally radially inwardly directed flexible hinge segment integral with the wall at a hinge seam, an annular crest on a radially inner portion of the hinge segment and extending and facing generally axially outwardly therefrom, the crest being adapted to bear against the sealing face whereby the hinge segment and crest become rotated downwardly toward a more horizontal plane when the seal element is moved into its operating sealing position against the sealing face, whereby the crest and the first contact surface are adapted to hermetically seal the top open end of the fill neck against the sealing face during filling or the like of the bottle.

대표청구항 ▼

[ I claim:] [1.] A fluid sealing device for positioning a container having a fill neck and a fluid inlet thru its top, in filling position on a container filling machine having a plurality of fill port means, whereby said device also provides for a fluid tight seal between said inlet and a sealing f

[ I claim:] [1.] A fluid sealing device for positioning a container having a fill neck and a fluid inlet thru its top, in filling position on a container filling machine having a plurality of fill port means, whereby said device also provides for a fluid tight seal between said inlet and a sealing face surrounding each said port means, said device comprising an elastomeric fill seal mounted on a carriage means, said carriage means having one component of a guide means adapted to slidably interconnect with another component of said guide means provided on said machine for allowing accurate reciprocable motion of said carriage means toward and away from said port means, said seal comprising a generally tubular wall formed generally around an axial flow axis and having an exterior wall surface and an interior wall surface providing a fluid flow passage, said wall having an outlet end section and a complex inlet end section, said outlet end section being formed to provide a first contact surface for engaging and sealing against said neck top, said inlet end section having a generally radially inwardly directed flexible hinge segment integral with said wall by a hinge seam and lying at a relaxed angle ".alpha." of from about 20.degree. to about 70.degree. to the horizontal, an annular crest on a radially inner portion of said hinge segment and extending and facing generally axially upwardly therefrom, said crest being adapted to bear against said sealing face surrounding said port means, and to be rotated downwardly with said hinge segment by pressure contact of said crest with said sealing face to a more horizontal plane when said device is placed in operating sealing position on the machine, said crest and said first contact surface being adapted to hermetically seal said fluid inlet of the container against said sealing face during filling of the container.