Dosing Assembly Pressure Chamber Pumping Action
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Solution Overview
Problem
Existing methods for introducing a precisely metered dose of a mixing substance into a container often result in residue left behind, require excessive force, and are prone to inaccuracies, especially when dealing with viscous fluids or untrained personnel, and are not suitable for storing or transporting the dose.
Innovation Solution
An assembly comprising a dosing part and a supply part that forms a pressure chamber adjacent to the outlet, allowing for a pumping action to transfer the dose into and out of the container, ensuring complete transfer and mixing without residue, with features like sealing elements and guide means for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the outlet is sealed by a weld that must be broken to release the dose, then the dose can be contained securely, but fluid remains behind in the dose container and cannot be completely transferred
Solution Approach 1:
The outlet structure is segmented into a outer wall portion and an inner wall portion that can move relative to each other. The inner wall portion forms a plunger that can be pushed to discharge the dose, while the outer wall portion remains as part of the container structure. This segmentation allows complete evacuation of the dose without leaving residue.
Solution Approach 2:
Instead of breaking the weld to release the dose, the invention inverts the approach by using a movable inner wall portion that pushes the dose out through the outlet. The discharge mechanism works from the inside out, pushing the fluid rather than pulling it, which prevents air barriers and ensures complete transfer.
2Reliability
If a large force is exerted to break the weld and perforate the outlet, then the dose can be released, but the wall of the dose container shoots through into the container forming a physical barrier
Solution Approach 1:
The outlet is segmented into movable and fixed portions. The inner wall portion forming the plunger is separated from the outer wall portion of the container. This allows the plunger to move forward to discharge the dose without the entire container wall being propelled forward, eliminating the harmful effect of the wall shooting through into the container.
Solution Approach 2:
The inner wall portion acts as an intermediary element between the force application point and the dose. It transmits the pushing force to the dose in a controlled manner, preventing direct transmission of force that would cause the container wall to shoot forward and form a barrier.
3Device complexity
If the assembly uses a simple outlet structure, then the device complexity is reduced, but it is not possible to pump the dose completely into the container
Solution Approach 1:
The outlet structure incorporates a movable inner wall portion that can dynamically change position. The plunger moves from a retracted position to an extended position to push the dose out. This dynamic element allows complete dose transfer without requiring complex external pumping mechanisms.
Solution Approach 2:
The movable inner wall portion serves dual functions: it forms part of the outlet structure and simultaneously acts as a plunger to discharge the dose. The structure is self-sufficient, using its own components to achieve complete dose transfer without requiring separate complex pumping systems.
4Ease of operation
If untrained personnel operate the assembly, then ease of operation is improved, but inaccuracies occur in introducing the precise dose
Solution Approach 1:
The assembly is designed to be self-filling and self-discharging. The movable inner wall portion automatically pushes the complete dose out when activated, eliminating the need for operators to manually control the discharge process. This ensures consistent, accurate dosing regardless of operator skill level.
Solution Approach 2:
The invention replaces manual mechanical control of dose discharge with an automated plunger mechanism. The movable inner wall portion is actuated to push the dose out, replacing the need for manual pipetting or syringe operation. This mechanical automation ensures precise dose transfer without requiring operator skill.
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
Enables precise and complete transfer of the dose into the container, ensuring accurate mixing without leakage or residue, and allows for easy filling, verification, and storage of the assembly before use.
Implementation Method 1
a pressure chamber whose volume can be changed is formed adjacent to the outlet by the joined supply part and dosing part, which pressure chamber enables a pumping action to be obtained between the container and the assembly
Data Source
AI summary
The present invention provides an assembly for introducing a dose of a mixing substance into a container, said assembly comprising a dosing part (3) and a supply part (2), which dosing part is arranged for receiving the dose and which supply part comprises an outlet (14) for introducing the dose into the container. The dosing part and the supply part are configured to cooperate with one another, such that a pressure chamber having a changeable volume is formed adjacent to the outlet when the supply part and the dosing part are joined together, which pressure chamber functions to enable a pumping action for pumping the dose into and out of the container. The invention further provides a method for inserting such a dose into a container.