Patent · US Active

Bottom forming process

US11980886B2 · kind B2 · utility

0Cited by

16References

21Claims

0Family size

Assignees

SCHOTT PHARMA SCHWEIZ AG · CH
SCHOTT PHARMA AG & CO. KGAA · DE

Inventors

Robert Frost · Eggersriet, CH
Doris Moseler · Budenheim, DE
Günter Weidmann · Stuttgart, DE
Roman Huhn · Sankt Gallen, CH

Key dates

Filing date	Dec 18, 2020
Grant date	May 14, 2024
Priority date	—
Expiry date	Jan 5, 2043

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01L2300/0851
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process for preparing a glass container that includes: providing a glass tube with a first portion, a second portion, and a longitudinal axis (Ltube); holding the first portion in a first clamping chuck and the second portion in a second clamping chuck; rotating the glass tube around the longitudinal axis (Ltube); heating, via a heater, the glass tube above a glass transition temperature; separating the first and second portions from one another by pulling apart along the longitudinal axis (Ltube) while the heated glass tube is still rotating by moving the first and the second chucks away from each other; and moving the heater, while moving the first and second chucks away from each other, so that the heater follows a mass that remains at a circular end region of the first and/or second portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.