Capsule Sealing Disc Detachment for Beverage Opening

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing capsules for preparing infusion or instant beverages are complex and costly to produce, with a risk of obstruction during beverage dispensing due to residual tips and uncontrolled tearing of sealing films.

Innovation Solution

A capsule design that uses a detachable sealing disc, activated by external force, to create an opening for beverage release, eliminating the need for perforation or severing mechanisms and simplifying production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If perforation or severing means are used to activate the opening, then the capsule can be opened for beverage dispensing, but the construction becomes complex and costly

Engineering Contradiction:

Improveopening controlVSAvoidcapsule construction

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts the sealing function into a separate detachable disc element, removing it from the permanent capsule structure. This allows the capsule body to be simple and inexpensive, while the sealing function is provided by a separate disc that is pushed off during operation, resolving the contradiction between reliable opening control and simple construction.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The sealing function is segmented into a separate detachable disc rather than being integrated into the capsule base. This segmentation allows the capsule body to remain simple while the sealing disc provides the necessary controlled opening mechanism, reducing overall construction complexity while maintaining reliability.

Inventive Principle:

Principle #1Segmentation

2Reliability

If tips or cutting profiles are used to perforate the sealing film, then the capsule can be opened, but the tip may remain inside and obstruct beverage dispensing

Engineering Contradiction:

Improvebeverage dispensingVSAvoidobstruction by residual tip

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The sealing function is extracted into a separate detachable disc that is completely removed from the capsule during opening, eliminating any residual elements that could obstruct beverage dispensing. The disc is pushed off entirely rather than perforated, so no part of the sealing mechanism remains in the beverage path.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If cutting or severing profiles are used to tear the sealing film, then the capsule can be opened, but the tear path becomes uncontrolled and may compromise the labyrinth function

Engineering Contradiction:

Improveopening activationVSAvoidtear path control

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The sealing disc is extracted as a separate detachable element that is pushed off as a whole unit rather than torn apart. This eliminates uncontrolled tearing entirely, as the disc detaches cleanly from its adhesive attachment without affecting the labyrinth structure or creating unpredictable tear paths.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using cutting profiles to actively tear the sealing material, the invention inverts the approach by using a pushing force to passively detach the disc from its adhesive bonding. The opening is achieved by removal rather than by cutting, eliminating the tear path control problem entirely.

Inventive Principle:

Principle #13The other way round (Inversion)

4Reliability

If complex perforation mechanisms are used, then opening control is improved, but production costs increase due to costly molds

Engineering Contradiction:

Improveopening controlVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The sealing function is extracted into a separate disc that can be manufactured independently using simple adhesive bonding processes. This eliminates the need for complex integrated molds required for traditional perforation mechanisms, significantly reducing production costs while maintaining reliable opening control through the push-off activation.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The sealing disc is designed as a simple, inexpensive, disposable element that is pushed off during use. This allows the use of basic adhesive bonding and simple disc manufacturing rather than expensive permanent molds, reducing production costs while providing sufficient reliability for single-use capsules.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS12208957B2Capsule with controlled opening for the preparation of beverages

Publication Date: 2025.01.28 GUALA DISPENSING FP SPA

AI summary

A capsule for the preparation of infusion or instant beverages includes pushing means for lifting a disc, arranged at a bottom of a cup defining an internal volume for containing a food substance to be infused. A central portion is collapsible towards the inside of the cup under a pressure force exerted from outside. The disc is fixed to an external edge with a peelable weld. Collapse of an intermediate portion pushes the disc, which, by lifting itself, detaches from the external edge, forming an outlet passage for the beverage.