Component delivery system utilizing film bags

• US 10,525,500 B2
• Filed: 02/15/2018
• Issued: 01/07/2020
• Est. Priority Date: 12/30/2004
• Status: Active Grant

• Current Assignee: Nordson Corporation
• Original Assignee: Nordson Corporation
• Inventors: Frey, Charles M.
• Primary Examiner(s): Long, Donnell A
• Application Number:
  US15/898,186
• Publication Number:
  US 20180169693A1
• Time in Patent Office: 691 Days
• CPC Class Codes: B05C 17/00516 Shape or geometry of the outlet orifice or the outlet element
• CPC Class Codes: B05C 17/00553 with means allowing the stock of material to consist of at least two different components
• CPC Class Codes: B05C 17/00559 the different components being stored in coaxial chambers
• CPC Class Codes: B05C 17/00583 the container for the material to be dispensed being deformable
• CPC Class Codes: B05C 17/015 with pneumatically or hydraulically actuated piston or the like B05C17/00543 takes precedence
• CPC Class Codes: B65D 81/325 Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents

Abstract

A cartridge for a medium to be dispensed is disclosed. The cartridge includes a head part having a dispensing outlet, and a film forming a cartridge wall. The film bounds a cartridge chamber for the medium to be dispensed, and extends at least partially in a longitudinal direction of the cartridge. The film has a front end that is connected to the head part. The is a multilayer film having at least two layers formed from different materials. The front end of the film is sealingly and non-releasably embedded in the head part of the cartridge, such that an end face of the front end of the film is covered by the head part. A method of manufacturing a cartridge having a head part using a mold is also disclosed.

Claims

1. A cartridge for a medium to be dispensed, the cartridge comprising:

a head part having a dispensing outlet; and

a film forming a cartridge wall, with the film bounding a cartridge chamber for the medium to be dispensed, extending at least partially in a longitudinal direction of the cartridge and having a front end that is connected to the head part,

wherein the film is a multilayer film having at least two layers formed from different materials, and

wherein the front end of the film is sealingly and non-releasably embedded in the head part of the cartridge, such that an end face of the front end of the film is covered by the head part.

2. The cartridge of claim 1, wherein an outer surface of the film is continuously covered by the head part at least in the region of the end face.

3. The cartridge of claim 1, wherein the head part comprises a collar, the collar surrounding the dispensing outlet in a radially outer region of the head part and extending in the longitudinal direction, and wherein the front end of the film is sealingly and non-releasably embedded in the collar.

4. The cartridge of claim 3, wherein the collar has a circular external shape in cross-section.

5. The cartridge of claim 1, wherein a respective thickness of the film is at least substantially uniform in a radial direction.

6. The cartridge of claim 1, wherein the at least two layers of the multilayer film comprise an inner layer and an outer layer, and the material of the head part is common with the outer layer.

7. The cartridge of claim 6, wherein the material of the head part and the outer layer includes one of polypropylene, polyethylene, and nylon.

8. The cartridge of claim 6, wherein material of the head part is intermixed with the outer layer.

9. The cartridge of claim 1, wherein the multilayer film comprises an inner layer, an outer layer, and a metal layer between the inner layer and the outer layer.

10. The cartridge of claim 9, wherein the metal layer comprises aluminum.

11. The cartridge of claim 1, wherein a back end portion of film is sealed.

12. A method of manufacturing a cartridge having a head part using a mold, the method comprising:

placing at least one film on a core;

placing the film and the core in the mold; and

injection molding the head part in a head space of the mold to form the head part and to sealingly and non-releasably embed a front end of the film in the head part, such that an outer surface of the front end of the film is covered by the head part,

wherein the material of the head part is common with the outer surface of the film.

13. The method of claim 12, further comprising:

removing the head part, the film, and the core from the mold; and

removing the head part and the film from the core.

14. The method of claim 13, further comprising sealing a back end of the film.

15. The method of claim 12, wherein the film is a multilayer film comprising an inner layer and an outer layer formed from different materials.

16. The method of claim 15, wherein the material of the head part is common with the outer layer of the film.