Loading patent…
AssigneeVerescence France
InventorLaurent, Pierre, Marie GUYOT
Estimating the term…
The invention relates to a method of fabricating a glass container, the method comprising a forming step of forming molten glass in order to obtain a semi-finished container (4) comprising a shell (5) presenting inside and outside faces (7, 8), a cooling step during which said semi-finished container is in a transient state in which the glass forming said outside face is sufficiently viscous for it not to deform under the effect of gravity, while the glass forming said inside face is sufficiently fluid to allow said inside face to deform under the effect of gravity, said method including a shaping operation while the semi-finished container is in said transient state, in which operation the semi-finished container is maintained for a predetermined time in a position that is inclined relative to its upright vertical position in order to modify the shape of said inside face under the effect of gravity. A method of fabricating glass containers, and a corresponding fabrication installation.
A method of fabricating a glass container (1, 1′) from a mass of molten glass, the method comprising a forming step for forming said mass of molten glass in order to obtain a semi-finished container (4, 4′) comprising a glass shell (5, 5′) that defines an inside cavity (6, 6′) and that presents an inside face (7, 7′) placed facing said inside cavity (6, 6′) and an opposite, outside face (8, 8′), a cooling step for cooling the semi-finished container (4, 4′), during which said semi-finished container (4, 4′) is taken to a transient state in which the glass forming said outside face (8, 8′) is sufficiently viscous for said outside face (8, 8′) not to deform perceptibly under the effect of gravity, while the glass forming said inside face (7, 7′) is still sufficiently fluid to be capable, on the contrary, of allowing said inside face (7, 7′) to deform under the effect of gravity, and a shaping operation for shaping said inside face (7, 7′) while the semi-finished container (4, 4′) is in said transient state, during which operation the semi-finished container (4, 4′) is maintained for a predetermined time in an inclined position that is inclined relative to its upright vertical position in order to cause the shape of said inside face (7, 7′) to be modified by movement (d) of the glass under the effect of gravity.
An installation for fabricating a glass container from a mass of molten glass, the installation comprising a forming station (1, 1′) for forming said mass of molten glass in order to obtain a semi-finished container (4, 4′) comprising a glass shell (5, 5′) defining an inside cavity (6, 6′) and presenting an inside face (7, 7′) placed facing said inside cavity (6, 6′) and an opposite, outside face (8, 8′), cooling means suitable for bringing said semi-finished container (4, 4′) into a transient state in which the glass forming said outside face (8, 8′) is sufficiently viscous for said outside face (8, 8′) not to deform perceptibly under the effect of gravity, while the glass forming said inside face (7, 7′) is still sufficiently fluid to be capable, on the contrary, of allowing said inside face (7, 7′) to deform under the effect of gravity, shaper means for shaping said inside face (7, 7′), which shaper means are designed to maintain for a predetermined time said semi-finished container (4, 4′) in an inclined position that is inclined relative to its upright vertical position so as to cause the shape of said inside face (7, 7′) to be modified by movement (d) of the glass under the effect of gravity while the semi-finished container (4, 4′) is in said transient state.
Dependencies are inferred from the claim text.