Fluid Pump Removable Seal Prevents Degradation
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Solution Overview
Problem
Existing fluid product packaging and dispensing devices face challenges in maintaining the integrity of the product during long storage periods due to exposure to the external environment, which can lead to oxidation, microbial contamination, and evaporation, despite the use of 'airless' systems, as vents and micro-leaks allow external air contact and ingredients from materials can migrate, degrading the product.
Innovation Solution
A device with a removable element that maintains the pump in a raised position, ensuring the shutter closes the product passage circuit, and a gas-impermeable shutter to prevent external air penetration and ingredient migration, along with a design that isolates the pump valves from the product, minimizing interactions and maintaining a seal throughout storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vents are provided to allow outside air to enter the space between the bottle and piston or bottle and pocket during pump actuation, then the piston can move and maintain pressure on the walls, but external air can penetrate and contact the product, causing oxidation and degradation
Solution Approach 1:
The device is divided into two functional zones: an upper sealed zone containing the product and a lower vented zone for air intake during pumping. The piston separates these zones, allowing air to enter only the lower zone while the product remains isolated in the upper sealed zone, resolving the contradiction between enabling pump operation and preventing product degradation.
Solution Approach 2:
The piston acts as an intermediary barrier between the product and the venting system. It allows air to pass through to the lower chamber for pressure equalization during pumping while maintaining a sealed interface with the product, thus mediating between the need for air intake and product protection.
2Device complexity
If the pump is positioned close to the product during storage, then the device structure is compact, but the product can contact pump materials and valves, causing ingredient migration and degradation
Solution Approach 1:
A removable sealing element is pre-installed in the neck of the bottle to create a seal between the product and pump before first use. This preliminary sealing action prevents any contact between product and pump materials during storage and transport, addressing the composition stability issue while maintaining compact structure.
Solution Approach 2:
The sealing function is extracted as a separate removable element that can be easily removed by the end user before first use. This separation allows the seal to be in place during storage to prevent degradation, while being removable for normal operation, thus resolving the contradiction between compact structure and composition stability.
3Stability of the object's composition
If a removable sealing element is added to prevent product-pump contact during storage, then product composition stability is improved, but device complexity and user操作步骤 increase
Solution Approach 1:
The sealing element is made from flexible plastic material such as polyethylene or polypropylene in the form of a thin film or bag that can be easily inserted and removed. This flexible construction provides effective sealing while minimizing structural complexity and ease of removal for the user.
4Ease of operation
If the sealing element is made from flexible plastic material, then it can conform to the bottle shape and provide good seal, but gas permeation can occur through the material during long storage
Solution Approach 1:
The sealing element uses composite material construction combining flexible plastic layers with gas barrier layers. This composite structure provides both the flexibility needed to conform to the bottle shape for good sealing and the gas barrier properties required to prevent permeation during long-term storage.
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 effectively reduces exchanges between the inside and outside of the device, ensuring the product remains protected from degradation processes during storage, maintaining its quality until first use and preventing accidental use during storage.
Implementation Method 1
a gas-impermeable shutter to prevent external air penetration
Implementation Method 2
isolates the pump valves from the product, minimizing interactions
Implementation Method 3
maintaining its quality until first use and preventing accidental use during storage
Data Source
Figure 1
Figure 2~5
Figure 6
AI summary
The invention relates to a device for packaging and dispensing fluid products. The device, which has a manual pump (2) mounted on a bottle (1) or a bag (5) containing the product to be dispensed, comprises a removable element (11) inserted between the pump (2) and the neck of the bottle (1), as well as a stopper (13) secured to the pump (2), which is capable of closing the circuit for the passage of the product to be dispensed between the inside of the flask (1) and the pump (2) when the removable element (11) is in place. The invention can be used for improving preservation during the storage of the product contained in the bottle or bag.