Fluid Dispensing Device Using Composite Plastic and Paper Container
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Solution Overview
Problem
Conventional fluid substance dispensing devices made entirely of plastic have a significant environmental impact and are expensive due to high costs associated with plastic materials, especially when environmental taxes are applied.
Innovation Solution
A fluid substance dispensing device featuring a deformable bag coupled to a hermetic manual pump, where the container is constructed using a combination of conventional plastic for the collar and paper or cardboard-based materials for the tubular element, reducing environmental impact and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device is made entirely of plastic, then the structural integrity and sealing are ensured, but the environmental impact increases and production costs rise
Solution Approach 1:
The patent applies composite materials by combining a plastic collar (providing sealing and structural integrity) with a paper or cardboard tubular element (providing environmental compatibility). This composite structure resolves the contradiction by allowing each material to perform its optimal function: the plastic collar ensures hermetic sealing at critical interfaces, while the paper/cardboard body reduces environmental impact and production costs.
2Ease of manufacture
If the device is made entirely of plastic, then the manufacturing process is simplified, but the production costs increase due to material costs and environmental taxes
Solution Approach 1:
The device is segmented into two distinct parts: a plastic collar and a paper/cardboard tubular element. This segmentation allows each component to be manufactured using the most cost-effective process for its material type, while the collar provides the critical sealing function. The segmentation resolves the cost contradiction by replacing expensive plastic material throughout the structure with a more economical paper/cardboard composite structure.
3Object-affected harmful factors
If the device uses recyclable materials, then the environmental compatibility improves, but the structural strength and sealing reliability may be compromised
Solution Approach 1:
The patent applies local quality by concentrating the plastic material specifically at the collar where sealing and structural integrity are most critical, while using recyclable paper or cardboard for the tubular element where structural demands are lower. This localized application of materials resolves the contradiction by ensuring that recyclable materials are used only where they do not compromise sealing reliability, while maintaining environmental compatibility overall.
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 device is more environmentally friendly and cost-effective compared to traditional plastic devices, with the use of recyclable materials facilitating cheaper production and easier recycling, while maintaining a secure seal and efficient dispensing mechanism.
Implementation Method 1
when the fluid substance is dispensed by the pump, a vacuum is created inside the bag 3
Implementation Method 2
which makes the bag deform as the fluid substance is dispensed
Data Source
Figure 1~4
Figure 5~8
Figure 9~12
AI summary
A device for dispensing a fluid substance (F) comprising a manually operated pump (2) coupled to a deformable bag (3), the deformable bag being housed inside a container (4); the container is formed of a collar (5) made of plastic coupled to a tubular element (6) formed from a paper- or cardboard-based material, the tubular element featuring a bottom (7), the collar (5) featuring ribs (N) made on a surface thereof which comes into contact with an internal wall of the tubular element (6).