Pull-Opening Cap Air Intake Flow Rate
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Solution Overview
Problem
Existing pull-opening caps for cosmetic products, such as shampoos and creams, have slow product flow rates and complex, expensive constructions, making them inefficient for large-sized containers and economically unfeasible for use in settings like hair salons.
Innovation Solution
A pull-opening cap design featuring a fixed body with a relief for container attachment and a movable head that creates an internal passage for product dispensing, incorporating an air intake passage to enhance flow rates, allowing the cap to be used for filling large containers quickly and economically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional pull-opening cap designs are used, then the construction is relatively complex and expensive, but the product flow rate is slow
Solution Approach 1:
The cap is divided into a fixed body and a mobile head that can move independently along the longitudinal axis. The mobile head contains the product outlet orifice and can be positioned in different locations, allowing the internal passage geometry to be optimized for flow while keeping the overall structure simple and manufacturable.
Solution Approach 2:
The invention introduces an air intake passage that extends along the longitudinal axis X, creating a three-dimensional flow path that allows air to enter at multiple points along the passage. This dimensional approach enables simultaneous product dispensing and air intake, markedly improving the flow rate without increasing structural complexity.
2Loss of time
If conventional pull-opening caps are used for large-sized containers, then the construction is complex, but the dispensing time is too long
Solution Approach 1:
The mobile head is pre-configured with the product outlet orifice positioned at an optimal location within the internal passage. The air intake passage is pre-formed to extend along the longitudinal axis, ensuring that air can immediately enter and mix with the product flow from the start of dispensing, eliminating delays and reducing overall dispensing time for large containers.
Solution Approach 2:
The invention utilizes pneumatic principles by incorporating an air intake passage that allows air to enter the internal passage and mix with the cosmetic product. This creates a more efficient flow dynamics, reducing viscosity effects and enabling faster dispensing of large volumes of product from industrial canisters to refills.
3Reliability
If the mobile head is positioned to block the outlet orifice, then product dispensing is prevented, but air intake is also blocked
Solution Approach 1:
The mobile head is designed with selective functionality: it blocks the product outlet orifice when in the closed position to prevent product leakage, while the air intake passage remains open and unobstructed. This local differentiation allows the cap to provide reliable sealing for product containment while maintaining continuous air intake capability, enabling the system to vent air without risking product loss.
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 cap significantly increases product flow rates by a factor of five, making it suitable for filling large containers efficiently and reducing customer waiting time, while maintaining simplicity and hygiene.
Implementation Method 1
the cap having an air intake passage. By virtue of the air intake passage, the flow rate of the product from the container to the outlet orifice is markedly improved
Data Source
AI summary
The invention relates to a capsule (1) having a push-pull opening along longitudinal axis X, comprising a fixed housing (3) as well as a head (4) which can move translationally along axis X with respect to the fixed housing (3), said capsule comprising an air intake passage (16).