Patent classifications
C03B23/092
HOT-FORMING TOOL FOR PRODUCING GLASS CONTAINERS
A hot-forming tool for producing glass containers is provided. The tool includes a forming roller, a holder, and a heat sink. The forming roller has a forming surface. The holder receives the forming roller with the forming roller rotatably mounted on the holder. The heat sink is directly or indirectly connected to the holder. The forming roller is in thermal contact with the heat sink and the heat sink has an internal cooler so that process heat can be transferred from the forming roller to the heat sink.
METHOD OF PRODUCING GLASS VIALS
A method for producing glass vials, in particular pharmaceutical vials or pharmaceutical ampoules, from a glass tube is provided, the method including the following steps: (a) rotating the glass tube about a longitudinal axis thereof; (b) locally heating the glass tube from one side by means of at least one burner to at least the softening temperature of the glass; (c) reducing the diameter by pressing at least one forming body laterally against the heated region; and (d) separating the glass tube by means of a burner. A glass vial produced in such a way releases a reduced amount of alkali in accordance with ISO 4802 and has a decreased delamination tendency. Furthermore, in the hot-formed peripheral region, the alkali content is only slightly reduced when compared with the alkali content in the glass interior.
A TAPERED GLASS TIP FOR USE WITH SMOKABLE SUBSTANCES CONTAINED WITHIN A WRAP AND METHOD FOR MANUFACTURING THE TIP
A tapered tip for being attached to a wrapper containing a smokeable substance. The tip is formed by a tube having a conical frustrum shape having two ends forming first and second openings at opposite ends of the tube. The openings are fluidly connected to each other by a chamber disposed between the two ends. The chamber and the two are axially aligned. The tip is formed by rotating a tube while applying heat to a section. The heated section is squeezed and a pivoting rod is inserted. The rollers and rod are removed and heat is applied. The heated portion is squeezed a second time and the rod is reinserted. The rollers and rod are removed and heat is applied. The heated portion is again squeezed and the pivoting rod is again reinserted. The rollers and rod are removed and heat is applied to the end of the tube.
GLASS SYRINGE BARREL WITH INCREASED FLANGE BREAKING RESISTANCE
A glass syringe barrel is provided that has a bottom end and a top end with a cone region, a shoulder region, a body region, and a flange region therebetween. The glass syringe barrel is configured so that f(x) defines an absolute value of a vertical distance between any point of a first outer contour and a straight line f.sub.o at a position x, with f(x)=0 at point P.sub.1, wherein x is a horizontal distance between any given point on the straight line f.sub.o and point P.sub.0 at which the straight line f.sub.o crosses a line L.sub.1 that runs parallel to the longitudinal axis and that touches an outer surface of the body region, and a maximum value for the term f(x) in a range from x=P.sub.0 to x=P.sub.1 is f(x).sub.max determined at position x.sub.max.
Method for laser-assisted reshaping of glass bodies
A method is provided for reshaping a glass body rotating about its longitudinal axis. The method includes using a means for establishing a temperature profile, a radial forming tool and an axial forming tool. In the method, a first temperature profile is established and the glass body is reshaped by engaging the radial forming tool. Then a second temperature profile is established and the glass body is reshaped by engaging the axial forming tool.
GLASS CONTAINER WITH AN IMPROVED BOTTOM GEOMETRY
A glass container for packaging a pharmaceutical composition including a glass tube with a first end and a second end, the glass tube having a wall thickness d.sub.w, a glass bottom having an outer area, and the glass bottom closes the glass tube at the first end. The glass container further including a curved glass heel extending from the outer area of the glass bottom to the first end of the glass tube. The curved glass heel is defined by an outer radius r.sub.o, an inner radius r.sub.i and a thickness of the glass d.sub.h in the curved glass heel, further wherein d.sub.h.sup.3/(r.sub.od.sub.w)>0.8 mm.
GLASS CONTAINER WITH AN IMPROVED BOTTOM GEOMETRY
A glass container for packaging a pharmaceutical composition including a glass tube with a first end and a second end, the glass tube having a wall thickness d.sub.w and an outer diameter d.sub.c, a glass bottom with an outer area, the glass bottom closes the glass tube at the first end, and a curved glass heel extending from the outer area of the glass bottom to the first end of the glass tube. The curved glass heel is defined by an outer radius r.sub.o, an inner radius ri, and a thickness of the glass d.sub.h in the curved glass heel and wherein:
[100(d.sub.h.sup.3r.sub.i)/(d.sub.w d.sub.c.sup.2)]+(4.4 mm.sup.2/d.sub.c)>0.55 mm.
Systems and methods for minimizing SHR from pharmaceutical part converting using pulsed ejection
Systems for producing articles from glass tube include a converter having a base with a plurality of processing stations and a turret moveable relative to the base. The turret indexes a plurality of holders for holding the glass tubes successively through the processing stations. The systems further include a gas flow system or a suction system for producing a flow of gas through the glass tube during one or more heating, forming, separating or piercing operations. The flow of gas through the glass tube produced by the gas flow system or suction system may be sufficient to evacuate or purge volatile constituents of the glass from the glass tube and/or pierce a meniscus formed on the glass tube during separation, thereby reducing the Surface Hydrolytic Response (SHR) of the interior surface of the glass tube and articles made therefrom.
FUSED QUARTZ CONTAINER HAVING LOW LEVELS OF SURFACE DEFECTS
A quartz glass container is shown and described herein. The quartz glass container exhibits a low concentration of surface defects on an inner surface of the container. In aspects hereof, the container may have a surface defect density of 50 or fewer surface defects per square centimeter within a 1 cm band centered 1 cm from the base of the container.
Method of producing glass vials
A method for producing glass vials, in particular pharmaceutical vials or pharmaceutical ampoules, from a glass tube is provided, the method including the following steps: (a) rotating the glass tube about a longitudinal axis thereof; (b) locally heating the glass tube from one side by means of at least one burner to at least the softening temperature of the glass; (c) reducing the diameter by pressing at least one forming body laterally against the heated region; and (d) separating the glass tube by means of a burner. A glass vial produced in such a way releases a reduced amount of alkali in accordance with ISO 4802 and has a decreased delamination tendency. Furthermore, in the hot-formed peripheral region, the alkali content is only slightly reduced when compared with the alkali content in the glass interior.