One-Piece Capsule With Integral Plunger for Freshness
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Solution Overview
Problem
Existing packaging solutions for liquids, creams, and powders are not optimized for shelf life and often require multiple interconnected parts, making them costly to manufacture and assemble, and do not effectively keep ingredients separate and fresh until use.
Innovation Solution
A single-piece or multi-piece dispensing capsule with a flexible actuator and moveable plunger that allows for on-demand dispensing of ingredients into a target container, enabling the mixing of multiple ingredients while maintaining separation and freshness, and featuring a sealing mechanism that prevents premature activation and residue buildup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple interconnected parts are used in capsule design, then sealing and ingredient separation are improved, but manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent combines multiple separate components (capsule body, plunger, seal, and dispensing mechanism) into a single integrated capsule structure. The plunger is formed as one piece with the capsule body, and the seal is incorporated into the same molding process, eliminating the need for separate assembly steps and reducing part count while maintaining sealing effectiveness.
Solution Approach 2:
The single-piece capsule design performs multiple functions simultaneously: the integrated plunger serves both as a mixing mechanism and a dispensing actuator, the capsule body provides both containment and structural support, and the incorporated seal ensures both closure and ingredient separation. This multi-functionality reduces the need for separate specialized components.
2Duration of action of stationary object
If ingredients are kept separate in multi-chambered capsules, then shelf life is extended, but manufacturing precision and sealing requirements increase
Solution Approach 1:
The capsule is divided into multiple sealed chambers within a single integrated structure, allowing different ingredients to be kept separate until activation. The segmentation is achieved through internal partition walls that are molded as part of the single-piece construction, ensuring precise sealing without requiring post-assembly operations.
Solution Approach 2:
The capsule is pre-assembled with all sealing elements and chamber divisions in place during the initial molding process, before the product reaches the consumer. This preliminary sealing action ensures that ingredients remain separated and protected throughout storage and transport, extending shelf life without requiring additional precision sealing steps at the point of use.
3Reliability
If on-demand dispensing is enabled with moveable plunger, then product freshness is maintained, but device complexity and activation mechanism cost increase
Solution Approach 1:
The capsule utilizes the user's own hand pressure as the actuating force, eliminating the need for complex external activation mechanisms. When the user squeezes the capsule, the pressure is transmitted through the flexible wall to move the plunger, which automatically pierces the seal and initiates dispensing. This self-service approach maintains product freshness while keeping the activation mechanism simple and low-cost.
Solution Approach 2:
The capsule employs pneumatic pressure transmission through the flexible wall to actuate the plunger mechanism. User-applied pressure is converted into mechanical motion of the plunger through fluid pressure, providing a simple yet effective activation method that maintains reliability without requiring complex mechanical linkages or additional power sources.
4Ease of manufacture
If single-piece molding is used, then manufacturing cost is reduced, but design flexibility and feature integration are limited
Solution Approach 1:
The single-piece capsule incorporates nested functional elements within its structure, including internal chambers, partition walls, and the plunger mechanism, all formed within the same molding process. This nesting approach allows complex multi-functional design to be achieved through a single molded piece, maintaining design flexibility while reducing manufacturing steps and cost.
Solution Approach 2:
The capsule incorporates dynamic elements such as the moveable plunger and flexible dispensing opening that are integrated into the single-piece structure. These dynamic features allow the capsule to adapt its function during use (transitioning from sealed to dispensing state) while being manufactured as a static single-piece mold, reconciling manufacturing simplicity with functional versatility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution extends the shelf life of ingredients by keeping them separate and fresh until use, allowing for cost-effective mass production and versatile application across various product categories, enhancing the mixing of liquids, powders, and oils while preventing unwanted reactions.
Implementation Method 1
a flexible actuator and moveable plunger that allows for on-demand dispensing
Data Source
AI summary
A dispensing capsule includes a cylindrical cap body surrounding a cylindrical ingredient chamber. The chamber is disposed inside and extends through the cap body and is sealed at the bottom by a lower sealing member. A flexible actuator is attached to the top of the cap body. A moveable plunger is disposed in the chamber and is attached underneath and extends downwardly from the flexible actuator. Upon application of pressure to the flexible actuator, the plunger displaces downward and at least partially breaks the lower sealing member.