Method for producing a glass stopper for sealing bottles

Patent metadata

Field	Value
Publication number	US-9718718-B2
Application number	US-201414780810-A
Country	US
Kind code	B2
Filing date	Mar 17, 2014
Priority date	Apr 29, 2013
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

The invention relates to a method for producing a glass stopper with a head portion for sealing bottles, more particularly bottles for wine and sparkling wine, wherein an upper mold and a lower mold are provided.

First claim

The invention claimed is:

1. A method for producing a glass stopper for sealing bottles, the stopper comprising a length and a head section, wherein the length of the stopper refers to that portion of the glass stopper which is arranged within the neck of the bottle, when the glass stopper is used in accordance with its purpose, the method comprising:
providing a bottom mold, the bottom comprising:
a press ram; and
an annular bottom mold piece for molding at least a portion of the head section, wherein the bottom mold piece encloses the press ram;
providing a top mold, the top mold comprising:
an upper top mold piece;
an annular lower top mold piece separate and distinct from the upper top mold piece; and
at least one medial top mold piece, the medial top mold piece being arranged between the lower top mold piece and the upper top mold piece, wherein the medial top mold piece comprises a first mold piece and at least one second mold piece;
supplying liquid glass to the bottom mold; and
press-molding a glass stopper for sealing bottles from the liquid glass supplied to the bottom mold by means of the bottom mold and the top mold.

2. The method as claimed in claim 1 , wherein the lower top mold piece is monolithic.

3. The method as claimed in claim 1 , the lower top mold piece being configured for molding a part of the length of the stopper.

4. The method as claimed in claim 1 , the lower top mold piece being configured for molding at least a portion of the head section.

5. The method as claimed in claim 1 , the lower top mold piece being configured for molding a part of the length of the stopper and for molding at least a portion of the head section.

6. The method as claimed in claim 3 , the medial top mold piece being configured for molding a part of the length of the stopper.

7. The method as claimed in claim 3 , the medial top mold piece being configured for molding at least a part of the length of the stopper having a shape configured for fixing a seal.

8. The method as claimed in claim 1 , the medial top mold piece being configured for molding at least a part of the length of the stopper having a shape configured for fixing a seal.

9. The method as claimed in claim 8 , before press-molding, moving the bottom mold and the top mold towards each other essentially in a vertical direction such that they form a closed mold entity.

10. The method as claimed in claim 9 , while press-molding, pressing the press ram into the head section.

11. The method as claimed in claim 10 , thereafter, moving the bottom mold and the top mold apart from one another.

12. The method as claimed in claim 11 , thereafter, moving the first mold piece and the second mold piece apart from one another.

13. The method as claimed in claim 11 , thereafter, moving the first mold piece and the second mold piece apart from one another essentially in a horizontal direction.

14. The method as claimed in claim 8 , wherein the medial top mold piece is heated.

15. The method as claimed in claim 1 , before press-molding, moving the bottom mold and the top mold towards each other essentially in a vertical direction such that they form a closed mold entity.

16. The method as claimed in claim 15 , while press-molding, pressing the press ram into the head section.

17. The method as claimed in claim 16 , thereafter, moving the bottom mold and the top mold apart from one another.

18. The method as claimed in claim 11 , thereafter, moving the first mold piece and the second mold piece apart from one another essentially in a horizontal direction.

19. A method for producing a glass stopper for sealing bottles, the stopper comprising a length and a head section, wherein the length of the stopper refers to that portion of the glass stopper which is arranged within the neck of the bottle, when the glass stopper is used in accordance with its purpose, the method comprising:
providing a bottom mold, the bottom comprising:
a press ram and
an annular bottom mold piece for molding at least a main portion of the head section or a portion of the head section, wherein the bottom mold piece surrounds the press ram,
providing a top mold, the top mold comprising:
an upper top mold piece and
an annular lower top mold piece separate and distinct from the upper top mold piece for molding at least a portion of the head section,
supplying liquid glass to the bottom mold, and
press-molding a glass stopper for sealing bottles from the liquid glass supplied to the bottom mold by means of the bottom mold and the top mold.

20. The method as claimed in claim 19 , the lower top mold piece being configured for molding a part of the length of the stopper.

21. The method as claimed in claim 20 , before press-molding, moving the bottom mold and the top mold towards each other essentially in a vertical direction such that they form a closed mold entity.

22. The method as claimed in claim 21 , while press-molding, pressing the press ram into the head section.

23. The method as claimed in claim 22 , the method further comprising:
thereafter, moving the bottom mold and the top mold apart from one another;
afterewards discharging the readily molded glass stopper; and
afterewards providing the readily molded glass stopper with a monolithic seal.

Assignees

• Docter Optics Se
• Doctor Optics SE

Inventors

• Wintzer Wolfram
• Arnold Lars
• Goldammer Hagen
• Plietzsch Sandro

Classifications

• C03B11/08 Primary

  for making solid articles, e.g. lenses · CPC title

• C03B2215/66

  Means for providing special atmospheres, e.g. reduced pressure, inert gas, reducing gas, clean room · CPC title

• C03B2215/50

  Structural details of the press-mould assembly · CPC title