Valve Holding Device for Pocket Refill with Degassing Holes
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Solution Overview
Problem
Existing refillable pressure dispenser boxes struggle to handle volatile products like hydrogen peroxide, which degas easily, and lack the ability to accommodate additional equipment for varied applications.
Innovation Solution
A pocket reservoir with a tubular base and dome featuring degassing holes and a semi-permeable membrane to prevent gas escape, along with an elliptical external profile for improved welding and a fixing system for adapters and accessories, allowing for the use of volatile products and expanding application possibilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible pocket is used to store volatile products like hydrogen peroxide, then the product can be dispensed through a diffusion valve, but the strong degassing of the product causes it to cannot be easily stored directly in flexible pockets
Solution Approach 1:
The invention divides the storage system into two separate components: a rigid outer container that provides structural support and degassing accommodation, and a flexible inner pocket that holds the liquid product. This segmentation allows each component to fulfill its specific function - the rigid container handles volatile product storage and gas venting, while the flexible pocket maintains product containment and dispensing capability.
2Reliability
If the pocket is filled through the valve in the wrong direction, then fragile products are prevented from being filled correctly, but this limits filling flexibility
Solution Approach 1:
The invention incorporates a pre-formed rigid outer container with integrated degassing holes and structural features before the filling operation. This preliminary preparation ensures that when filling occurs, the container is already positioned and configured to guide the filling process in the correct direction, preventing fragile products from being damaged by incorrect filling orientation.
3Ease of manufacture
If the pocket is crimped onto a peripheral rim of the bowl, then the valve-holder cup is secured, but the sealing may be insufficient for volatile products
Solution Approach 1:
The invention employs a composite structure combining a rigid outer container material (providing structural integrity and chemical resistance) with a flexible inner pocket material (providing conformal sealing). This composite approach creates a multi-material sealing system where each material contributes its superior properties, ensuring both volatile product containment and ease of valve mounting.
4Adaptability or versatility
If the dispenser box is designed for specific applications, then it can effectively dispense targeted products, but it lacks the ability to accommodate additional equipment to increase the possibilities of use
Solution Approach 1:
The rigid outer container is designed with universal features including standardized opening types (screw, snap-fit, or bayonet) and integrated mounting provisions that can accommodate various application-specific accessories such as spray guns, foam applicators, or dosing devices. This universal base design allows the same core dispensing system to be adapted for multiple applications without redesigning the entire system.
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 the safe storage and distribution of volatile products like hydrogen peroxide while enhancing the dispenser's versatility by accommodating various application systems and accessories.
Implementation Method 1
the degassing hole of the bag is covered with a semi-permeable membrane glued or welded to the bag and adapted to allow a gas to pass from the inside of the bag to the outside of the bag while retaining a liquid contained in the bag
Implementation Method 2
a tubular base provided with an external profile for receiving and welding a neck of the pocket
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a pocket reservoir for a pressurized dispenser casing, comprising a pocket (50) and a dome (20) provided, in the lower part, with a tubular base (22) provided with an external profile (22a, 23, 24, 25) for receiving and welding a collar (53) of the pocket and, in the upper part, a housing (30) for receiving a valve for distributing a product contained in the pocket, for which the tubular base and the collar of the pocket welded onto the external profile are each provided with a degassing hole (60, 61) at the level of the external profile.