Cartridge for a dispensing device

Patent metadata

Field	Value
Publication number	US-12377436-B2
Application number	US-202017755845-A
Country	US
Kind code	B2
Filing date	Dec 1, 2020
Priority date	Dec 13, 2019
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A cartridge for a dispensing device has at least one inherently non-rigid, elongate film pouch, which has a chamber for receiving a composition. The cartridge also has a head part for interacting with the film pouch. The head part has an inherently rigid insert, which is connected to the film pouch on a side facing the head part. A connecting device is provided, which can connect the insert to the head part in a form-fitting and/or force-fitting manner. The insert has at least one first connecting element of the connecting device and the head part has at least one second connecting element of the connecting device.

First claim

The invention claimed is:

1. A cartridge for a dispensing device, having:
at least one first non-rigid, elongate film pouch, which has a chamber for receiving a first composition,
at least one second non-rigid, elongate film pouch, which has a chamber for receiving a second composition,
a head part for interacting with the at least one first non-rigid, elongate film pouch and the at least one second non-rigid, elongate film pouch and having a first rigid insert, the first rigid insert being connected to the at least one first non-rigid, clongate film pouch on a side facing the head part, the head part further having a second rigid insert, the second rigid insert being connected to the at least one second non-rigid, elongate film pouch on a side facing the head part,
a first connecting device which can connect the first rigid insert to the head part in a form-fitting and/or force-fitting manner, and
a second connecting device which can connect the second rigid insert to the head part in a form-fitting and/or force-fitting manner,
wherein the first rigid insert and the second rigid insert each have at least one first connecting element of the connecting device and the head part has at least one second connecting element of the connecting device,
wherein the at least one first non-rigid, elongate film pouch and the at least one second non-rigid, elongate film pouch are each formed by a cylindrical film tube which is closed at a bottom by a base part,
wherein the first connecting device comprises a completely surrounding latching lug which connects with a corresponding counter element of the first connecting device, such that a sealing connection can be achieved,
wherein the head part further comprises a first expansion space and a first outlet channel having a first diameter for outflow of the first composition from the first non-rigid, elongate film pouch at a first flow rate, and
wherein the head part further comprises a second expansion space and a second outlet channel having a second diameter different from the first diameter for outflow of the second composition from the second non-rigid, elongate film pouch at a second flow rate different from the first flow rate.

2. The cartridge according to claim 1 , wherein the first connecting device is detachable, and/or wherein the second connecting device is detachable.

3. The cartridge according to claim 1 , wherein the first connecting device has a latching lug which extends completely around a circumference in a circumferential direction, and which interacts with a corresponding counter-element, and/or wherein the second connecting device has a latching luo which extends completely around a circumference in a circumferential direction, and which interacts with a corresponding counter-element.

4. The cartridge according to claim 1 , wherein the at least one second connecting element of the first connecting device and/or the at least one second connecting element of the second connecting device has a positioning element which can fix a position of the rigid insert relative to the head part in a defined manner in a circumferential direction.

5. The cartridge according to claim 1 ,
wherein the first connecting device is designed as the latching connection, and wherein a plurality of the at least one first connecting element of the latching connection can be brought into engagement with a plurality of the at least one second connecting element of the latching connection,
and/or
wherein the second connecting device is designed as the latching connection, and wherein a plurality of the at least one first connecting element of the latching connection can be brought into engagement with a plurality of the at least one second connecting element of the latching connection.

6. The cartridge according to claim 1 , wherein the first rigid insert and/or the second rigid insert has a passage closed by a cover.

7. The cartridge according to claim 1 , wherein the base part of the at least one first non-rigid, elongate film pouch and/or the at least one second non-rigid, elongate film pouch is glued and/or welded to the cylindrical film tube.

8. The cartridge according to claim 1 , wherein the first non-rigid, elongate film pouch is filled with the first composition and/or wherein the second non-rigid, elongate film pouch is filled with the second composition.

9. The cartridge according to claim 8 , wherein the first composition and/or the second composition comprises a multi-component mortar, a multi-component coating compound, a multi-component paint, a multi-component foam precursor, a multi-component adhesive, a multi-component sealing compound, a multi-component lubricant, or a resin.

10. The cartridge according to claim 1 , wherein the first composition is different from the second composition.

11. The cartridge according to claim 10 , wherein the head part is designed such that the first composition and the second composition are configured to be guided separately from one another in the region of the head part up to an outlet opening.

12. The cartridge according to claim 1 , wherein the first outlet channel and the second outlet channel each run separately from one another in the region of the head part up to an outlet opening.

13. The cartridge according to claim 1 , wherein the head part is designed such that the first composition and the second composition are configured to be guided separately from one another in the region of the head part up to an outlet opening.

14. The cartridge according to claim 1 , wherein, in the at least one first non-rigid, elongate film pouch and/or in the at least one second non-rigid, elongate film pouch, the base part has a base and a collar extending around the base, and wherein the film tube is attached on the outside of the collar by welding.

15. The cartridge according to claim 1 ,
wherein the first rigid insert and the second rigid insert are each respectively inserted into the first non-rigid, elongate film pouch and the second non-rigid, elongate film pouch on a side facing the head part.

16. The cartridge according to claim 1 , wherein, in the first rigid insert and/or in the second rigid insert, the first connecting element comprises a plurality of lugs and the second connecting element comprises a plurality of slots.

17. The cartridge according to claim 16 , which comprises six latching lugs and six latching slots which are coordinated with one another.

18. The cartridge according to claim 16 , wherein there is a ridge in each case between two latching slots that are adjacent in the circumferential direction and the lugs and slots have extents that substantially correspond to one another in the circumferential direction.

19. The cartridge according to claim 1 , which is not adapted to be engaged with a plunger or piston.

Assignees

• Hilti Ag

Inventors

• Ayrle Thomas
• Willner Ralf
• Donner Tobias

Classifications

• B65D83/771

  for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm · CPC title

• B65D81/3288

  composed of two or more separate containers joined to each other · CPC title

• B05C17/00553

  with means allowing the stock of material to consist of at least two different components · CPC title

• B05C17/00583 Primary

  the container for the material to be dispensed being deformable · CPC title