Single-Material Fluid Dispenser Pump With Integrated Elastic Chamber
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Solution Overview
Problem
Existing fluid substance dispensing devices are costly, complex, and environmentally unfriendly due to their multi-part construction and use of diverse materials.
Innovation Solution
A simplified, single-piece dispensing device with a cup-shaped body, deformable portion, and integrated valve elements made from recyclable materials like PP, PE, TPO, TPE, TPU, and silicone, which allows for efficient fluid dispensing through a sliding button mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manual pump with multiple parts is used, then the dispensing function is achieved, but the device becomes costly and complex
Solution Approach 1:
The patent combines multiple separate components (pump body, valve assembly, spring mechanism, and dispensing button) into a single integrated pump body made of thermoplastic material. The valve elements and spring are molded directly within the pump body structure, eliminating the need for separate assembly steps and reducing the number of parts while maintaining the complete dispensing function.
Solution Approach 2:
The single-piece pump body serves multiple functions simultaneously: it contains the compression chamber, houses the valve elements, provides the spring mechanism, supports the dispensing button, and includes the nozzle assembly. This multi-functional design replaces what would traditionally require multiple specialized components.
2Reliability
If multiple materials (metals, plastics) are used, then the dispensing device functions properly, but it becomes difficult to recycle and environmentally unsound
Solution Approach 1:
The entire pump body is manufactured from a single thermoplastic material (such as polypropylene, polyethylene, TPO, TPE, or TPU) that is homogeneous in composition. This uniform material structure replaces the traditional multi-material construction with metals and different plastics, making the device easily recyclable through standard thermoplastic recycling processes while maintaining all necessary dispensing functions.
3Device complexity
If a single-piece construction is used, then the device is simpler and less costly, but manufacturing precision must be maintained
Solution Approach 1:
The patent utilizes advanced injection molding parameters and material selection to achieve precise positioning of valve elements and internal features within the single-piece pump body. By controlling molding conditions, cooling rates, and material flow, the manufacturing process achieves the same precision as multi-component assembly without requiring separate machining or assembly operations.
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 cost-effective, environmentally friendly, and easier to manufacture, while maintaining effective fluid dispensing performance.
Implementation Method 1
a deformable portion (11) which is elastically deformable and essentially acts as an elastic element which counters the movement of the dispensing button (15)
Implementation Method 2
a spring (2) which, when compressed by the deformable portion (11), enables the dispensing button (15) to be returned to an upper position
Data Source
Figure 1~2
Figure 3~4
Figure 5~8
AI summary
A device (1) for dispensing a fluid substance (S) comprising a cup-shaped body (3) equipped, at the bottom (2) thereof, with a first valve element (4) which intercepts a passage (5) for the suction of the said fluid substance into a compression chamber (6), a cup-shaped body (2) closing element (7) equipped with a window (8), a dispensing button (15), and a shaped element (9) functionally coupled to the dispenser button (15) for the movement thereof into the cup-shaped body (3), the shaped element (9) comprising a flange portion (10) configured to slide along an internal wall (3A) of the cup-shaped body, a deformable portion (11) extending from the flange portion (10) which is bell-shaped when non-deformed, the deformable portion (11) being elastically deformable, the said deformable portion (11) determining, at least together with a part of the cup-shaped body (3), the said compression chamber (6).