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公开(公告)号：US11845686B2
公开(公告)日：2023-12-19
申请号：US17368563
申请日：2021-07-06
Applicant: SCHOTT AG
Inventor： Markus Ollig , Arne Riecke , Volker Trinks , Rainer Eichholz , Ulrich Lange , Sebastian Stark , Stephan Tratzky , Rainer Schmid , Wassilis Bagaris , Reinhard Gmeiner
CPC classification number: C03B7/04
Abstract: An apparatus for forming glass tubes is provided. The apparatus includes a Danner-pipe, a heating device, and a heating chamber having the Danner-pipe and the heating device arranged therein. The Danner-pipe is inclined with respect to a horizontal plane by a Danner-angle. The heating device is inclined with respect to the horizontal plane by a heating-angle. The Danner-angle and/or the heating angle are in a range of 1° to 45°.
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公开(公告)号：US11780765B2
公开(公告)日：2023-10-10
申请号：US17316150
申请日：2021-05-10
Applicant: Schott AG
Inventor： Rainer Erwin Eichholz , Markus Ollig , Arne Riecke , Ulrich Fotheringham
CPC classification number: C03C3/111 , C03C3/064 , C03C3/089 , C03C2201/32 , C03C2201/58
Abstract: The invention relates to glass articles, such as for example glass tubes or flat glasses, where the material at the surface by a targeted process control has gradient material properties which in turn result in a compressive prestress of the surface. The invention also relates to a method for the production of the glass articles as well as their use.
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Patent Agency Ranking
公开(公告)号：US20220204380A1
公开(公告)日：2022-06-30
申请号：US17368563
申请日：2021-07-06
Applicant: SCHOTT AG
Inventor： Markus Ollig , Arne Riecke , Volker Trinks , Rainer Eichholz , Ulrich Lange , Sebastian Stark , Stephan Tratzky , Rainer Schmid , Wassilis Bagaris , Reinhard Gmeiner
IPC: C03B17/04
Abstract: An apparatus for forming glass tubes is provided. The apparatus includes a Danner-pipe, a heating device, and a heating chamber having the Danner-pipe and the heating device arranged therein. The Danner-pipe is inclined with respect to a horizontal plane by a Danner-angle. The heating device is inclined with respect to the horizontal plane by a heating-angle. The Danner-angle and/or the heating angle are in a range of 1° to 45°.
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公开(公告)号：US20210347670A1
公开(公告)日：2021-11-11
申请号：US17313624
申请日：2021-05-06
Applicant: Schott AG
Inventor： Thomas Lenz , Andreas Langsdorf , Fabian Etzold , Christoph Gross , Ulrich Lange , Markus Ollig , Arne Riecke , Wolfgang Wallat
Abstract: A glass tube, such as a glass tube for the production of containers for storage of pharmaceutical compositions, facilitates production of pharmaceutical containers with high quality. The glass tube has a relative cross-sectional area deviation defined as QF max - QF min 1.5 m . QF max - QF min 1.5 m is less than k*x+t. QFmax is the highest cross-sectional area and QFmin is the lowest cross-sectional area of at least two cross-sections of the glass tube, the cross-sections being spaced apart from each other along a length of the glass tube, and k is 0.0023 m−1, t is less than 0.15 mm2/m and x is QF max + QF min 2 .
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公开(公告)号：US20240279101A1
公开(公告)日：2024-08-22
申请号：US18631723
申请日：2024-04-10
Applicant: Schott AG
Inventor： Thomas Lenz , Andreas Langsdorf , Fabian Etzold , Christoph Gross , Ulrich Lange , Markus Ollig , Arne Riecke , Wolfgang Wallat
CPC classification number: C03B17/04 , A61J1/065 , A61J1/1468 , C03C3/087 , C03C3/091
Abstract: A process for producing glass tubes includes: applying a glass melt onto an outer surface of a rotating conical mandrel by guiding the glass melt from a feed tank through an outlet; forming a hollow glass melt body on the conical mandrel; drawing the hollow glass melt body from the conical mandrel in a predetermined direction toward a front end for forming a glass tube, the outer surface having a wetting zone where the glass strand first contacts the conical mandrel, a spatial variation of the wetting zone of the applied glass melt being monitored by measuring a horizontal movement of an edge of the glass strand; reducing the spatial variation by adjusting one or more process parameters; cooling the hollow glass melt body; and cutting the cooled glass melt body into glass tubes.
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公开(公告)号：US11981593B2
公开(公告)日：2024-05-14
申请号：US17313624
申请日：2021-05-06
Applicant: Schott AG
Inventor： Thomas Lenz , Andreas Langsdorf , Fabian Etzold , Christoph Gross , Ulrich Lange , Markus Ollig , Arne Riecke , Wolfgang Wallat
CPC classification number: C03B17/04 , A61J1/065 , A61J1/1468 , C03C3/087 , C03C3/091
Abstract: A glass tube, such as a glass tube for the production of containers for storage of pharmaceutical compositions, facilitates production of pharmaceutical containers with high quality. The glass tube has a relative cross-sectional area deviation defined as
QF
max
-
QF
min
1.5
m
.
QF
max
-
QF
min
1.5
m
is less than k*x+t. QFmax is the highest cross-sectional area and QFmin is the lowest cross-sectional area of at least two cross-sections of the glass tube, the cross-sections being spaced apart from each other along a length of the glass tube, and k is 0.0023 m−1, t is less than 0.15 mm2/m and x is
QF
max
+
QF
min
2
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公开(公告)号：US20210347681A1
公开(公告)日：2021-11-11
申请号：US17316150
申请日：2021-05-10
Applicant: Schott AG
Inventor： Rainer Erwin Eichholz , Markus Ollig , Arne Riecke , Ulrich Fotheringham
IPC: C03C3/11
Abstract: The invention relates to glass articles, such as for example glass tubes or flat glasses, where the material at the surface by a targeted process control has gradient material properties which in turn result in a compressive prestress of the surface. The invention also relates to a method for the production of the glass articles as well as their use.
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