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 the semi-finished container is in a transient state in which the glass forming the outside face is sufficiently viscous for it not to deform under the effect of gravity, while the glass forming the inside face is sufficiently fluid to allow the inside face to deform under the effect of gravity, the method including a shaping operation while the semi-finished container is in the 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 the inside face under the effect of gravity.

There is provided a method of manufacturing a glass container that can manufacture a glass container, which includes a bubble formed in a bottom portion and independent of the outside, with high yield by accurately controlling the position and size of the bubble. A method of manufacturing a glass container that includes a mouth portion, a body portion, and a bottom portion, includes: a step of molding a glass container, in which a bubble is not yet formed, from molten glass; a step of forming a bubble-forming passage by pulling out a needle-like member after inserting the needle-like member into a bottom portion of the glass container in which a bubble is not yet formed; a step of injecting air from an inlet of the bubble-forming passage to form a reverse teardrop-shaped internal space, which is widened in the bottom portion from the bubble-forming passage as a starting point, in the bottom portion of the glass container in which a bubble is not yet formed, and to obtain a glass container that includes an internal space communicating with the outside; and a step of closing an inlet side of the reverse teardrop-shaped internal space by flow of not yet cured glass, which is caused by the potential heat of the not yet cured glass, to obtain a glass container that includes a bubble formed in the bottom portion and independent of the outside.

There is provided a method of manufacturing a glass container that can manufacture a glass container, which includes a bubble formed in a bottom portion and independent of the outside, with high yield by accurately controlling the position and size of the bubble. A method of manufacturing a glass container that includes a mouth portion, a body portion, and a bottom portion, includes: a step of molding a glass container, in which a bubble is not yet formed, from molten glass; a step of forming a bubble-forming passage by pulling out a needle-like member after inserting the needle-like member into a bottom portion of the glass container in which a bubble is not yet formed; a step of injecting air from an inlet of the bubble-forming passage to form a reverse teardrop-shaped internal space, which is widened in the bottom portion from the bubble-forming passage as a starting point, in the bottom portion of the glass container in which a bubble is not yet formed, and to obtain a glass container that includes an internal space communicating with the outside; and a step of closing an inlet side of the reverse teardrop-shaped internal space by flow of not yet cured glass, which is caused by the potential heat of the not yet cured glass, to obtain a glass container that includes a bubble formed in the bottom portion and independent of the outside.

There is provided a method of manufacturing a glass container that can manufacture a glass container, which includes a bubble formed in a bottom portion and independent of the outside, with high yield by accurately controlling the position and size of the bubble.

A method of manufacturing a glass container that includes a mouth portion, a body portion, and a bottom portion, includes: a step of molding a glass container, in which a bubble is not yet formed, from molten glass; a step of forming a bubble-forming passage by pulling out a needle-like member after inserting the needle-like member into a bottom portion of the glass container in which a bubble is not yet formed; a step of injecting air from an inlet of the bubble-forming passage to form a reverse teardrop-shaped internal space, which is widened in the bottom portion from the bubble-forming passage as a starting point, in the bottom portion of the glass container in which a bubble is not yet formed, and to obtain a glass container that includes an internal space communicating with the outside; and a step of closing an inlet side of the reverse teardrop-shaped internal space by flow of not yet cured glass, which is caused by the potential heat of the not yet cured glass, to obtain a glass container that includes a bubble formed in the bottom portion and independent of the outside.

There is provided a method of manufacturing a glass container that can manufacture a glass container, which includes a bubble formed in a bottom portion and independent of the outside, with high yield by accurately controlling the position and size of the bubble.

A method of manufacturing a glass container that includes a mouth portion, a body portion, and a bottom portion, includes: a step of molding a glass container, in which a bubble is not yet formed, from molten glass; a step of forming a bubble-forming passage by pulling out a needle-like member after inserting the needle-like member into a bottom portion of the glass container in which a bubble is not yet formed; a step of injecting air from an inlet of the bubble-forming passage to form a reverse teardrop-shaped internal space, which is widened in the bottom portion from the bubble-forming passage as a starting point, in the bottom portion of the glass container in which a bubble is not yet formed, and to obtain a glass container that includes an internal space communicating with the outside; and a step of closing an inlet side of the reverse teardrop-shaped internal space by flow of not yet cured glass, which is caused by the potential heat of the not yet cured glass, to obtain a glass container that includes a bubble formed in the bottom portion and independent of the outside.

Provided is a method for manufacturing a glass container with which a glass container having a distinctively shaped inner space and excellent aesthetic appearance can be manufactured in good yield. The method for manufacturing a glass container includes steps (A) to (E). (A) A step of introducing a gob into a mold through a funnel. (B) A step of blowing air into the mold through the funnel, bringing a plunger disposed on a side opposite the side to which the funnel is fitted in contact with the gob, separating the plunger from the gob, and forming a recess on the surface of the gob. (C) A step of removing the funnel from the mold and fitting a baffle to the mold. (D) A step of blowing air from the plunger, and forming an inner space inside the gob with the recess as a starting point while simultaneously forming an outer shape by pressing the outer side of the gob to a molding surface of the mold to obtain a glass container of the final shape. (E) A step of transferring the glass container of the final shape to a cooling mold and cooling the same.

A glass container that includes a base defining a hole, and methods of manufacturing and using the glass container, is disclosed. The glass container is manufactured by providing the container and cutting a hole in a wall of the container. The hole may be cut into the wall by any technique in which glass material is separated from the wall including by mechanical shearing, thermal energy, and/or fluid impingement. To use the glass container, a deformable blow-out plug may be inserted into the hole to fluidly seal the hole, a liquid beverage may be introduced into the container, a closure may be coupled to the container to close the container and provide a pressurizable package, and thereafter the package may be internally pressurized by introducing a pressurizing gas into the package.

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.

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.

The invention relates to a method, comprising: feeding at least one molten-glass parison into a parison mold; forming, in the parison mold, a blank of an item from said at least one parison; transferring the blank of the item into a finishing mold; and forming the item in the finishing mold. While forming the item in the finishing mold, excess glass is directed out of the base of the item so as to form a convex bulge, and said bulge is removed such that the thickness of the base of the item is substantially constant.