Bottom circumferential fracture and flange circumferential fracture of reinforced glass containers achieved through geometric feature design

By strengthening glass containers to create a specific geometric distribution of compression and tension, the problem of sterility damage during transportation and storage is solved, enabling rapid identification and handling of damaged containers and reducing recall and cost risks.

CN122138938APending Publication Date: 2026-06-02CORNING INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CORNING INC
Filing Date
2024-11-04
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing glass containers are prone to developing cracks that penetrate the wall thickness during transportation and storage, which can impair the sterility of the contents but do not lead to catastrophic packaging failure, resulting in recalls and increased costs.

Method used

By strengthening the glass container to create a compression and tension distribution with specific geometric characteristics, the crack propagation behavior is controlled, promoting the fracture morphology of bottom ring breakage or flange ring breakage, ensuring that the container cannot be used if sterility is compromised.

Benefits of technology

It enables rapid identification and handling of damaged glass containers based on their obvious fracture patterns, preventing contamination of contents and reducing recall and cost risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

A reinforced glass container includes: a cylindrical body portion having a first end and a second end, the cylindrical body portion including an outer diameter (D) and sidewalls having a sidewall thickness (h); a curved root portion extending radially inward from the first end of the cylindrical body portion; and a bottom portion extending from the curved root portion and closing the cylindrical body portion at the first end of the cylindrical body portion, the bottom portion including a peak bottom thickness (h). b,peak The peak bottom thickness (h) b,peak The ratio between the sidewall thickness (h) and the sidewall thickness (h) is greater than or equal to 1.3.
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Citation Information

Patent Citations

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    US11639310B2

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    US20210395141A1

  • Dual stage ion exchange for chemical strengthening of glass

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