Abstract: A packaging assembly includes: a packaging, which is flexible; and a plurality of glass parts having a tubular-shaped geometry or a rod-shaped geometry, the plurality of glass parts including a glass and being enclosed in the packaging while being in mutual contact with one another, the packaging exerting a pressure on the plurality of glass parts such that the packaging clings to the plurality of glass parts so that the plurality of glass parts are pressed onto one another and secured against relative movement with respect to one another.

Abstract: A furnace for relieving glass products of stress is provided. The furnace has a furnace interior and a thermal element that measures temperatures in the furnace interior. The thermal element is enclosed by an enveloping tube composed of an inorganic material.

Abstract: A drinking implement includes a first end section with a first opening and a second end section with a second opening. A wall made of glass extends from the first opening to the second opening. At least one of the first end section or the second end section is designed as a specific end section having at least partially a ridge, an outer edge, and an inner edge. An outer transition angle and an inner transition angle both have absolute values of less than 90 degrees.

Abstract: A furnace for relieving glass products of stress is provided. The furnace has a furnace interior and a thermal element that measures temperatures in the furnace interior. The thermal element is enclosed by an enveloping tube composed of an inorganic material.

Abstract: The invention relates to a method for producing glass tubes with a cross section of a noncircular form by reshaping. This method includes at least providing a glass tube, heating the glass tube, providing at least one reshaping tool, which has a forming body with a forming area for reshaping the heated glass tube, the forming body including at least one open-porous material, setting a gas pressure in the interior of the reshaping tool lower than 90 kPa, so that a negative pressure is produced on the forming area, and reshaping the heated glass tube by applying a compressive force perpendicularly to the longitudinal axis of the glass tube, the compressive force being generated by the reshaping tool and being applied to the outer surface of the glass tube, and the outer surface of the glass tube being fixed by the negative pressure.

Abstract: The present invention relates to a process for producing a glass tube having a cross section that deviates from a circular shape by reforming with high precision and quality of the surface. Furthermore, the invention relates to the use of this process for producing housings for mobile electronic devices. The process comprises at least provision of a glass tube, heating of the glass tube, provision of at least one reforming tool, where the reforming tool is suitable for exerting a compressive force on the heated glass tube, provision of an inner mandrel which comprises at least one open-pored material, insertion of at least one section of the inner mandrel into the glass tube and forming of the glass tube by application of a compressive force perpendicular to the longitudinal axis of the glass tube, where the compressive force is exerted by the reforming tool and acts on the outer surface of the glass tube and where the glass tube does not rotate around its longitudinal axis.

Abstract: The invention relates to a method for producing glass tubes with a cross section of a noncircular form by reshaping. This method includes at least providing a glass tube, heating the glass tube, providing at least one reshaping tool, which has a forming body with a forming area for reshaping the heated glass tube, the forming body including at least one open-porous material, setting a gas pressure in the interior of the reshaping tool lower than 90 kPa, so that a negative pressure is produced on the forming area, and reshaping the heated glass tube by applying a compressive force perpendicularly to the longitudinal axis of the glass tube, the compressive force being generated by the reshaping tool and being applied to the outer surface of the glass tube, and the outer surface of the glass tube being fixed by the negative pressure.

Abstract: A filling device for beverages includes a store tank for receiving a beverage supply, and a filling valve for filling packages with the beverage from the store tank. To reduce idle times in this filling device, a heat exchanger is integrated into the store tank and/or into the filling valve.

Abstract: The glass tube assembly has an outer glass tube provided with a tapered section and an inner glass tube or rod, which is arranged inside of the outer glass tube and which has a spiral section. The tapered section is formed by one or more projections on the inner surface of the outer glass tube. Each projection extends in a longitudinal direction of the outer glass tube and does not extend around its entire circumference. The internal width of the tapered section is smaller than the outside diameter of the spiral section of the inner glass tube or rod, so that the inner glass tube or rod is reliably prevented from slipping or rotating out of the outer glass tube by its spiral section. A method of making the glass tube assembly is also described.

Abstract: A filling device for beverages includes a store tank for receiving a beverage supply, and a filling valve for filling packages with the beverage from the store tank. To reduce idle times in this filling device, a heat exchanger is integrated into the store tank and/or into the filling valve.

Abstract: A method for fixing the location of a glass rod spiral (5) in a glass tube (2) for applications for the process treatment of a gas flow, wherein the glass rod spiral comprises a spiral-shaped glass tube or glass rod section (5) with a specified outside diameter (W), in which method the glass tube (2) is provided on its internal surface with at least one projection (3) not extending around its full circumference, so that a tapered section of glass tube with a specified internal width (w) is formed to be smaller than the specified outside diameter (W) of the glass tube or glass rod spiral. The projection extends in the longitudinal direction of the glass tube and has a length that is greater than the pitch of the spiral glass tube or glass rod section (5).

Abstract: The invention relates to a device and a process for producing a glass tube, preferably continuously. The device comprises a shaft (9) into which a glass melt is introduced, so that the outer profile of the glass tube (1) is determined at least in sections by the shaft, and a shaping means (10), which extends coaxially in the interior of the shaft, for determining the inner profile of the glass tube (1). The shaping means (10) is cooled and the shaft is disposed vertically. The glass melt is cast freely into the shaft (9) while forming a free meniscus. According to the invention, the shaping means (10) is cooled so that the glass melt solidifies in the shaft to form the glass tube (1). The glass passes through the temperature range which is critical for crystal formation within a very short time, so that precise glass tubes can also be produced from readily crystallising glasses. It is also possible to precisely shape glass tubes with any desired inner and/or outer profiles.

Abstract: The double-walled noble metal duct (1) for conducting a glass melt has an outer noble metal pipe (1b) and an inner noble metal pipe (1a) extending within the outer pipe, so that an inner space (21) is formed within the inner pipe and an intermediate space (23) is formed between the inner pipe (1a) and the outer pipe (1b). The intermediate space is completely filled with glass melt when the double-walled noble metal duct conducts the glass melt, when the outer pipe (1b) has an exhaust vent (4). The outer pipe (1b) also has a bottom outlet (7) communicating with the intermediate space for removal of oxygen bubbles formed on the outer wall. The noble metal duct can be used in glass conditioning and in the manufacture of glass articles that are devoid of polyvalent ions.

Abstract: The sleeve-type glass melt agitator has a rotatable cylindrical sleeve provided with outwardly protruding vane elements and through-going openings in its outer cylindrical surface to stir the glass melt when the sleeve is rotated. The sleeve type agitator is arranged vertically in a glass melt feed channel in a glass melt feed system for making glass tubes or pipes according to the Vello or down-drawn process. During formation of glass tubes or pipes from the glass melt the sleeve-type agitator is rotated as the glass melt flows downward to prevent formation of schlieren in the glass melt, which causes glass material losses.

Abstract: The present invention relates to a method of treating a component which is intended for a facility for producing or preparing glass melts and has surfaces which are made of noble metal and come into contact with glass melts during operation.

Abstract: The double-walled noble metal duct (1) for conducting a glass melt has an outer noble metal pipe (1b) and an inner noble metal pipe (1a) extending within the outer pipe, so that an inner space (21) is formed within the inner pipe and an intermediate space (23) is formed between the inner pipe (1a) and the outer pipe (1b). The intermediate space is completely filled with glass melt when the double-walled noble metal duct conducts the glass melt when the outer pipe (1b) has an exhaust vent (4). The outer pipe (1b) also has a bottom outlet (7) communicating with the intermediate space for removal of oxygen bubbles formed on the outer wall. The noble metal duct can be used in glass conditioning and in the manufacture of glass articles that have polyvalent ion vacancies.

Abstract: The invention concerns a device for supporting a horizontal guided, continuous glass strand;

Abstract: The sleeve-type glass melt agitator has a rotatable cylindrical sleeve provided with openings or small loops in its outer surface. The sleeve type agitator is arranged vertically in a glass melt feed channel in a glass melt feed system for making glass tubes or pipes according to the Vello or down-drawn process. During formation of glass tubes or pipes from the glass melt the sleeve-type agitator is rotated as the glass melt flows downward to prevent formation of schlieren in the glass melt, which causes glass material losses.