Cartridge and method for producing a cartridge

Patent metadata

Field	Value
Publication number	US-11999554-B2
Application number	US-202017755802-A
Country	US
Kind code	B2
Filing date	Dec 2, 2020
Priority date	Dec 13, 2019
Publication date	Jun 4, 2024
Grant date	Jun 4, 2024

Abstract

A cartridge for a dispensing device contains at least one elongate film pouch, which is inherently non-rigid and which has a chamber for receiving a composition. The cartridge also contains a head part for interacting with the film pouch. The film pouch has an opening on a side facing the head part which is closed by a cover. The insert is conical on a side facing the head part. A method can be used for producing such a cartridge.

First claim

The invention claimed is:

1. A cartridge for a dispensing device, having:
at least one non-rigid, elongate film pouch, which has a chamber for receiving a composition,
a head part for interacting with the at least one non-rigid, elongate film pouch, and a rigid insert which is a different part from the head part,
wherein the rigid insert is connected to the at least one non-rigid, elongate film pouch on a side facing the head part and has a passage closed by a cover,
wherein the rigid insert is conical on the side facing the head part.

2. The cartridge according to claim 1 , wherein a surface of the rigid insert facing the head part encloses an angle (ε) between 10° and 50° with a horizontal (H) perpendicular to the dispensing direction.

3. The cartridge according to claim 2 , wherein the angle (ε) has a value between 15° and 35°.

4. The cartridge according to claim 3 , wherein the angle (ε) has a value of 25°.

5. The cartridge according to claim 3 , wherein the rigid insert has at least one ventilation opening that is independent of the passage and/or at least one ventilation slot that is independent of the passage, and/or
wherein the passage of the rigid insert has at least one ventilation notch in a region facing a central axis of the at least one non-rigid, elongate film pouch.

6. The cartridge according to claim 2 , wherein the rigid insert has at least one ventilation opening that is independent of the passage and/or at least one ventilation slot that is independent of the passage, and/or
wherein the passage of the rigid insert has at least one ventilation notch in a region facing a central axis of the at least one non-rigid, elongate film pouch.

7. The cartridge according to claim 1 , wherein the cover has a predetermined breaking region.

8. The cartridge according to claim 7 , wherein the rigid insert has at least one ventilation opening that is independent of the passage and/or at least one ventilation slot that is independent of the passage, and/or
wherein the passage of the rigid insert has at least one ventilation notch in a region facing a central axis of the at least one non-rigid, elongate film pouch.

9. A cartridge for a dispensing device, having:
at least one non-rigid, elongate film pouch, which has a chamber fir receiving a composition, and
a head part for interacting with the at least one non-rigid, elongate film pouch and having a rigid insert,

wherein the rigid insert is connected to the at least one non-rigid, elongate film pouch on a side facing the head part and has a passage closed by a cover,
wherein the rigid insert is conical on the side facing the head part,

wherein the rigid insert has at least one ventilation opening that is independent of the passage and/or at least one ventilation slot that is independent of the passage, and/or
wherein the passage of the rigid insert has at least one ventilation notch in a region facing a central axis of the at least one non-rigid, elongate film pouch.

10. The cartridge according to claim 9 , wherein the rigid insert has at least one ventilation opening that is independent of the passage and/or at least one ventilation slot that is independent of the passage, and/or
wherein the passage of the rigid insert has at least one ventilation notch in a region facing a central axis of the at least one non-rigid, elongate film pouch.

11. The cartridge according to claim 1 , wherein the rigid insert and the head part each have, in a mutually facing region, an interacting and substantially diametrically opposed contour, wherein the cover that is arranged in a region of the contours is weldable.

12. The cartridge according to claim 11 , wherein the rigid insert has at least one ventilation opening that is independent of the passage and/or at least one ventilation slot that is independent of the passage, and/or
wherein the passage of the rigid insert has at least one ventilation notch in a region facing a central axis of the at least one non-rigid, elongate film pouch.

13. The cartridge according to claim 1 , wherein the at least one non-rigid, elongate film pouch is formed by a cylindrical film tube which is closed at a bottom by a base part.

14. The cartridge according to claim 13 , wherein the base part is glued and/or welded to the cylindrical film tube.

15. The cartridge according to claim 1 , which comprises at least two of the covers, at least two of the inserts, and at least two of the film pouches.

16. A method for producing a cartridge for a dispensing device, having:
at least one non-rigid, elongate film pouch, which has a chamber for receiving a composition, and
a head part for interacting with the at least one non-rigid, elongate film pouch and having a rigid insert,

wherein the rigid insert is connected to the at least one non-rigid, elongate film pouch on a side facing the head part and has a passage closed by a cover,
wherein the rigid insert is conical on the side facing the head part, the method comprising:
providing the at least one non-rigid, elongate film pouch having the chamber, wherein the at least one non-rigid, elongate film pouch is connected to the rigid insert and the base part, the rigid insert having an opening,

filling the chamber with the composition through the opening,

and
closing the opening with the cover.

17. The method according to claim 16 , wherein a predetermined breaking region is produced in a region of the cover.

18. The method according to claim 17 , wherein the predetermined breaking region of the cover is produced by a laser, by weakening by hot stamping, by scoring, or by welding the cover to the insert.

19. The method according to claim 16 , wherein the insert has at least one material extension.

20. The method according to claim 19 , wherein the at least one material extension surrounds the opening, and wherein the at least one material extension melts during the closing of the opening.

Assignees

• Hilti Ag

Inventors

• Donner Tobias
• Ayrle Thomas
• Willner Ralf

Classifications

• B65D83/7713 Primary

  the contents of a flexible bag being expelled by a piston, or a movable bottom or partition provided in the container or the package · CPC title

• B65D83/0072 Primary

  Operations & Transport · mapped topic

• B05C17/00586

  Means, generally located near the nozzle, for piercing or perforating the front part of a cartridge · CPC title

• B65B3/04

  Methods of, or means for, filling the material into the containers or receptacles · CPC title

• B65B7/02

  Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks · CPC title