Method and system for obtaining cut elongated elements

Patent metadata

Field	Value
Publication number	US-12441650-B2
Application number	US-202217903587-A
Country	US
Kind code	B2
Filing date	Sep 6, 2022
Priority date	Sep 20, 2021
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

A bundle includes five or more cut elongated glass elements. Each cut elongated glass element includes a first end, a cylindrical portion, and a second end. At least one of the following equations is fulfilled: i) (Icenter(max)−Icenter(min))/Icenter(mean)≤4.0×10−2 [μm/μm]; or ii) (Icontinuous(max)−Icontinuous(min))/Icenter(mean)≤4.0×10−2 [μm/μm]. Icenter(max) is a maximum center inner diameter of the cylindrical portions of all cut elongated glass elements; Icenter(min) is a minimum center inner diameter of the cylindrical portion of all cut elongated glass elements; Icenter(mean) is a mean of inner diameters at a center of the cylindrical portions of all cut elongated glass elements; Icontinuous(max) is a maximum continuous inner diameter of the cylindrical portion of any single cut elongated glass element; and Icontinuous(min) is a minimum continuous inner diameter of the cylindrical portion of the single cut elongated glass element.

First claim

What is claimed is:

1. A bundle, comprising:
five or more cut elongated glass elements, each cut elongated glass element comprising:
a first end;
a cylindrical portion; and
a second end;

wherein at least one of the following equations is fulfilled:
( I center (max)− I center (min))/ I center (mean)≤4.0×10 −2 [μm/μm];  i) or

( I continuous (max)− I continuous (min))/ I center (mean)≤4.0×10 −2 [μm/μm];  ii)

wherein I center (max) is a maximum center inner diameter of the cylindrical portions of all cut elongated glass elements in the bundle;
wherein I center (min) is a minimum center inner diameter of the cylindrical portion of all cut elongated glass elements in the bundle;
wherein I center (mean) is a mean of inner diameters at a center of the cylindrical portions of all cut elongated glass elements in the bundle;
wherein I continuous (max) is a maximum continuous inner diameter of the cylindrical portion of any single cut elongated glass element in the bundle; and
wherein I continuous (min) is a minimum continuous inner diameter of the cylindrical portion of the single cut elongated glass element in the bundle, wherein the following equation is fulfilled: c≤(I continuous (max)−I continuous (min))/I center (mean); wherein c in μm/μm is 1.0×10 −6 .

2. The bundle of claim 1 , wherein the following equation is fulfilled:
( I center (max)− I center (min))/ I center (mean)≤ b;   iv)

wherein b in μm/μm is 4.0×10 −2 .

3. The bundle of claim 2 , wherein b in μm/μm is 1.0×10 −4 .

4. The bundle of claim 2 , wherein I center (mean) is at least 2 mm.

5. The bundle of claim 4 , wherein I center (mean) is 100 mm or less.

6. The bundle of claim 1 , wherein c in μm/μm is 1.0×10 −2 .

7. The bundle of claim 1 , wherein the following equation is fulfilled:
( I continuous (max)− I continuous (min))/ I center (mean)≤ d;   vi)

wherein d in μm/μm is 4.0×10 −2 .

8. The bundle of claim 7 , wherein d in μm/μm is 1.0×10 −4 .

9. The bundle of claim 7 , wherein I center (mean) is at least 2 mm.

10. The bundle of claim 1 , wherein (I center (max)−I center (min)) is 200 μm or less.

11. The bundle of claim 10 , wherein (I center (max)−I center (min)) is 5 μm or less.

12. The bundle of claim 1 , wherein at least one of the following equations is fulfilled:
( I center (max)− I center (mean))≤ e , wherein e is 100 μm;  vii) or

( I center (mean)− I center (min))≤ f , wherein f is 100 μm.  viii)

13. The bundle of claim 12 , wherein both equation vii) and equation viii) are fulfilled.

14. The bundle of claim 12 , wherein at least equation vii) is fulfilled and e is 2 μm.

15. The bundle of claim 12 , wherein at least equation viii) is fulfilled and f is 2 μm.

16. The bundle of claim 1 , wherein a glass of the cut elongated glass elements is at least one of a borosilicate glass, an aluminosilicate glass, a lithium-aluminosilicate (LAS) glass, a soda-lime glass, a lead glass or a Type I glass according to ASTM E 438 and/or European Pharmaocopeia.

17. The bundle of claim 1 , wherein both equation i) and equation ii) are fulfilled.

18. The bundle of claim 1 , wherein the bundle comprises 1000 or less cut elongated glass elements.

19. The bundle of claim 1 , wherein each of the cut elongated glass elements is a cut glass tube, a cut glass rod, or a glass pharmaceutical packaging.

Assignees

• Schott Ag

Inventors

• Witzmann André
• Trinks Ulla

Classifications

• Y10T428/131

  Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.] · CPC title

• Y10T428/1314

  Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.] · CPC title

• C03B33/037

  Controlling or regulating · CPC title

• C03B37/16 Primary

  Cutting or severing (light guides G02B6/25) · CPC title

• C03B33/06 Primary

  Cutting or splitting glass tubes, rods, or hollow products (C03B33/09 takes precedence) · CPC title