Bundle of tubular and/or rod shaped glass articles, method for its fabrication as well as for unpacking said bundle

Patent metadata

Field	Value
Publication number	US-11724872-B2
Application number	US-202117190313-A
Country	US
Kind code	B2
Filing date	Mar 2, 2021
Priority date	Mar 2, 2020
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A bundle of tubular and/or rod-shaped glass articles is provided that includes a longest dimension, a plurality of layers (NL) of the glass articles, and a thread-like element. The longest dimension extends in a first direction. The glass articles in each layer are arranged side by side in a second direction. The plurality of layers are arranged side by side in a third direction. The first, second, and third directions being perpendicular to one another. The thread-like element is around two of the glass articles in at least one layer so that the two glass articles are spaced apart.

First claim

What is claimed is:

1. A bundle of tubular and/or rod-shaped glass articles, comprising:
a longest dimension of the glass articles extending in a first direction of a Cartesian coordinate system, the longest dimension defining a length of the glass articles;
a plurality of layers (N L ) of the glass articles, wherein the glass articles in each layer of the plurality of layers are arranged side by side in a second direction of the Cartesian coordinate system, the second direction being perpendicular to the first direction, and wherein the plurality of layers are arranged side by side in a third direction of the Cartesian coordinate system, the third direction being perpendicular to the first and second directions; and
a thread-like element is wrapped at least partially around at least two of the glass articles in at least one layer of the plurality of layers so that the two glass articles are spaced apart, the thread-like element being twisted from fibers or strips of material or being a string, line or cord,
wherein the thread-like element has a minimum cross section (c t ), wherein the thread-like element is wrapped around the glass articles at a plurality of different spaced positions (n t ) along the length of the glass articles, wherein the plurality of different spaced positions and the minimum cross section are selected according to:

C R - value

N L
Less than 3000
6000 . . . 12000
12000 . . . 20000
More than 20000

Less than 8
n t ≥ 2,
n t ≥ 2,
n t ≥ 3,
n t ≥ 4,

c t ≥ 0.5 mm
c t ≥ 0.5 mm
c t ≥ 0.9 mm
c t ≥ 1.0 mm

8 to 12
n t ≥ 2,
n t ≥ 2,
n t ≥ 3,
n t ≥ 4,

c t ≥ 0.6 mm
c t ≥ 0.6 mm
c t ≥ 1.0 mm
c t ≥ 1.1 mm

More than 12
n t ≥ 3,
n t ≥ 3,
n t ≥ 3,
n t ≥ 4,

c t ≥ 0.7 mm
c t ≥ 0.7 mm
c t ≥ 1.1 mm
c t ≥ 1.2 mm

wherein the C R -value corresponds to:

C
R

=

l
2

d
o
2

+

2
⁢

t
w
2

-

2
⁢

d
o

·

t
w

wherein l corresponds to the length of the glass articles in mm,
wherein d o corresponds to an outer diameter of the glass articles in mm, and
wherein t w corresponds to a wall thickness of the glass articles in mm, the wall thickness of a rod-shaped article being equal to one half of the outer diameter, and wherein the space between two tubular and/or rod-shaped glass articles is less than 16% of the outer dimension of the tubular and/or rod-shaped glass articles, and wherein the thread-like element is fastened to form a releasable knot with an adhesive force between about 0.1 and 4.0 N, wherein the adhesive force is the force necessary to untie the knot.

2. The bundle of claim 1 , wherein the minimum cross section (c t ) is selected according to:

C R - value

N L
Less than 3000
6000 . . . 12000
12000 . . . 20000
More than 20000

Less than 8
c t ≥ 0.9
mm
c t ≥ 0.9 mm
c t ≥ 1.2 mm
c t ≥ 1.5 mm

8 to 12
c t ≥ 1.0
mm
c t ≥ 1.0 mm
c t ≥ 1.3 mm
c t ≥ 1.6 mm

More than 12
c t ≥ 1.1

c t ≥ 1.1 mm
c t ≥ 1.4 mm
  c t ≥ 1.7 mm.

3. The bundle of claim 1 , wherein the plurality of different spaced positions (n t ) is selected according to:

C R - value

N L
Less than 3000
6000 . . . 12000
12000 . . . 20000
More than 20000

Less than 8
n t ≥ 2
n t ≥ 3
n t ≥ 4
n t ≥ 5

8 to 12
n t ≥ 2
n t ≥ 3
n t ≥ 4
n t ≥ 5

More than 12
n t ≥ 3
n t ≥ 3
n t ≥ 4
  n t ≥ 5.

Assignees

• Schott Ag

Inventors

• Sparschuh Georg Helmut

Classifications

• B65D85/20 Primary

  for incompressible or rigid rod-shaped or tubular articles · CPC title

• B65B13/02

  Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes · CPC title

• B65D63/10

  Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof · CPC title

• B65D71/0092

  provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids · CPC title

• B65D75/002

  in shrink films (B65D71/08 takes precedence) · CPC title