The invention relates to a method for producing a glass container, such as a glass syringe or a glass ampule, having a form-specific dispensing portion and optionally a form-specific counter support, from a glass container blank, wherein the basis weight of the glass container blank is detected indirectly or directly and the overall longitudinal extent of the glass container to be produced is determined on the basis of the detected basis weight.

The invention relates to a method for producing a glass container, such as a glass syringe or a glass ampule, having a form-specific dispensing portion and optionally a form-specific counter support, from a glass container blank, wherein the basis weight of the glass container blank is detected indirectly or directly and the overall longitudinal extent of the glass container to be produced is determined on the basis of the detected basis weight.

A glass container is provided that includes a tube, a circular bottom, and a longitudinal axis. A curved glass heel extends from an outer end the bottom to the first end of the tube. The two-dimensional distance h(x,y) between a contact plane and the outer surface. The two-dimensional distance is measured in a direction parallel to the axis. The slope magnitude of the outer surface at the given position x,y is given by
√{square root over ((dh/dx).sup.2+(dh/dy).sup.2)}.
The 75% quantile of values that have been determined for the term
√{square root over ((dh/dx).sup.2+(dh/dy).sup.2)}×d1/h(xy).sub.delta
for all given positions x,y within a circular area having a radius of 0.4×d2/2 and that correspond to the centre is less than 4100 μm/mm. The adjacent positions x,y increase stepwise by 200 μm, and h(x,y).sub.delta=h(x,y).sub.max−h(x,y).sub.min, h(x,y).sub.max is a maximum value for h(x,y) and h(x,y).sub.min is a minimum value for h(x,y) being determined in that circular area.

A glass container is provided that includes a tube, a circular bottom, and a longitudinal axis. A curved glass heel extends from an outer end the bottom to the first end of the tube. The two-dimensional distance h(x,y) between a contact plane and the outer surface. The two-dimensional distance is measured in a direction parallel to the axis. The slope magnitude of the outer surface at the given position x,y is given by
√{square root over ((dh/dx).sup.2+(dh/dy).sup.2)}.
The 75% quantile of values that have been determined for the term
√{square root over ((dh/dx).sup.2+(dh/dy).sup.2)}×d1/h(xy).sub.delta
for all given positions x,y within a circular area having a radius of 0.4×d2/2 and that correspond to the centre is less than 4100 μm/mm. The adjacent positions x,y increase stepwise by 200 μm, and h(x,y).sub.delta=h(x,y).sub.max−h(x,y).sub.min, h(x,y).sub.max is a maximum value for h(x,y) and h(x,y).sub.min is a minimum value for h(x,y) being determined in that circular area.

The invention relates to a method for producing glassware, in particular rotationally symmetrical glassware, such as a glass syringe, a glass carpule, a glass vial or a glass ampule, wherein the method comprises the steps of rotating a glass intermediate, in particular a glass tube, with a receptacle rotational speed about a receptacle rotational axis, rotating at least one forming roller with a roller rotational speed about a roller rotational axis, and displacing the at least one forming roller and the glass intermediate for shaping in a forming roller contact, from which the receptacle rotational axis is spaced in a radial direction about an intermediate radius and from which the roller rotational axis is spaced in a radial direction about a roller radius, wherein the ratio of the roller rotational speed to the receptacle rotational speed during the method is controlled as a function of the ratio of intermediate radius to roller radius.

The invention relates to a method for producing glassware, in particular rotationally symmetrical glassware, such as a glass syringe, a glass carpule, a glass vial or a glass ampule, wherein the method comprises the steps of rotating a glass intermediate, in particular a glass tube, with a receptacle rotational speed about a receptacle rotational axis, rotating at least one forming roller with a roller rotational speed about a roller rotational axis, and displacing the at least one forming roller and the glass intermediate for shaping in a forming roller contact, from which the receptacle rotational axis is spaced in a radial direction about an intermediate radius and from which the roller rotational axis is spaced in a radial direction about a roller radius, wherein the ratio of the roller rotational speed to the receptacle rotational speed during the method is controlled as a function of the ratio of intermediate radius to roller radius.

Provided herein are measurement systems including a micrometer assembly for receiving a length of tubing, the micrometer assembly including a plurality of non-contact optical micrometers disposed around the length of tubing for measuring an outer diameter (OD) at a first plurality of positions along a circumference of the length of tubing. The measurement system may further include a displacement gauge assembly for receiving the length of tubing from the optical micrometer assembly, the displacement gauge assembly including a plurality of non-contact gauges disposed around the length of tubing for measuring a wall thickness at a second plurality of positions along the circumference of the length of tubing. A controller receives the OD measurements and thickness measurements, and determines an inner diameter and a concentricity of the length of glass tubing based on an index of refraction of the length of glass tubing, the OD measurements, and the thickness measurements.

Provided herein are measurement systems including a micrometer assembly for receiving a length of tubing, the micrometer assembly including a plurality of non-contact optical micrometers disposed around the length of tubing for measuring an outer diameter (OD) at a first plurality of positions along a circumference of the length of tubing. The measurement system may further include a displacement gauge assembly for receiving the length of tubing from the optical micrometer assembly, the displacement gauge assembly including a plurality of non-contact gauges disposed around the length of tubing for measuring a wall thickness at a second plurality of positions along the circumference of the length of tubing. A controller receives the OD measurements and thickness measurements, and determines an inner diameter and a concentricity of the length of glass tubing based on an index of refraction of the length of glass tubing, the OD measurements, and the thickness measurements.

A method for shaping the mouth of a hollow precursor made of glass is provided, as well as glass produced thereby. The method includes heating the mouth of the hollow precursor; introducing a mandrel along a first direction into the mouth while the hollow precursor is rotating; and pressing shaping rollers along a second direction on an outside of the mouth while the hollow precursor is rotating with the mandrel in the mouth. The first and second directions are perpendicular to one another. The method can include moving the mandrel along second and/or third directions together or separate from expanding the mandrel along the second and third directions.

A method for shaping the mouth of a hollow precursor made of glass is provided, as well as glass produced thereby. The method includes heating the mouth of the hollow precursor; introducing a mandrel along a first direction into the mouth while the hollow precursor is rotating; and pressing shaping rollers along a second direction on an outside of the mouth while the hollow precursor is rotating with the mandrel in the mouth. The first and second directions are perpendicular to one another. The method can include moving the mandrel along second and/or third directions together or separate from expanding the mandrel along the second and third directions.