- Patent Title: Glass container comprising a glass bottom with improved properties
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Application No.: US17126618Application Date: 2020-12-18
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Publication No.: US12076723B2Publication Date: 2024-09-03
- Inventor: Alexander Humbertjean , Tobias Wetzel , Robert Frost , Jens Ulrich Thomas , Frank-Thomas Lentes , Andreas Langsdorf , Doris Moseler , Günter Weidmann , Roman Huhn
- Applicant: SCHOTT PHARMA AG & CO. KGAA , SCHOTT PHARMA SCHWEIZ AG
- Applicant Address: DE Mainz
- Assignee: SCHOTT AG
- Current Assignee: SCHOTT AG
- Current Assignee Address: DE Mainz
- Agency: Ruggiero McAllister & McMahon LLC
- Priority: EP 219010 2019.12.20
- Main IPC: B65D1/02
- IPC: B65D1/02 ; A61J1/14 ; B01L3/00 ; B65D81/30 ; C03B23/08 ; C03B23/09 ; C03B23/11 ; A61J1/05

Abstract:
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 outer surface has a topography defined by a function ĥ(x) that is an azimuthal average of a distance between a contact plane and the outer surface at any given position located on a circle having the centre and the radius |x|. The values ĥ for ĥ(x) are determined for a plurality of circles the radius of which increases stepwise by 500 μm starting with a circle around the centre having a radius of 500 μm. The values ĥ are determined in a range from x=−0.4×d2/2 to x=+0.4×d2/2, d2 having a size such that at least 4 values ĥ are determined and can be fitted with a curvature function
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Public/Granted literature
- US20210187497A1 GLASS CONTAINER COMPRISING A GLASS BOTTOM WITH IMPROVED PROPERTIES Public/Granted day:2021-06-24
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