Airless Pump with Single-Part Rod and Button
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Solution Overview
Problem
Conventional airless dispensing systems for fluid products are complex and costly due to their multi-part design, which complicates manufacturing and increases costs, especially when used for products sensitive to air exposure.
Innovation Solution
A simplified airless dispensing system comprising three single-piece structural parts - a rod, a hoop, and a push button - with non-return valves featuring flexible, deformable peripheral zones for precise fluid distribution and sealing, reducing the number of parts and enhancing manufacturing ease while maintaining precise dosage control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional multi-part pump design is used, then reliable fluid distribution is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges multiple separate components into a single integrated pump body that houses the distribution chamber, piston, and valve mechanisms. This consolidation reduces the number of parts while maintaining the functional integrity and reliability of fluid distribution, directly addressing the contradiction between reliability and device complexity
Solution Approach 2:
The single-piece pump structure performs multiple functions simultaneously: it acts as the distribution chamber, contains the piston mechanism, integrates the valve system, and provides the structural framework. This multi-functionality eliminates the need for separate components while ensuring reliable operation, resolving the trade-off between complexity and reliability
2Ease of manufacture
If conventional multi-part pump design is used, then functional completeness is achieved, but manufacturing cost and complexity increase
Solution Approach 1:
By combining multiple functional components into a single molded pump body, the invention simplifies the manufacturing process. Instead of assembling multiple precision parts, the entire pump structure can be produced in one piece through injection molding or similar processes, significantly reducing manufacturing complexity and cost
Solution Approach 2:
The invention changes the structural parameter from multi-component to single-piece construction. This fundamental parameter change enables the use of efficient molding processes while maintaining all necessary functional elements, thereby improving ease of manufacture without sacrificing functional completeness
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 system achieves precise and efficient fluid dispensing with reduced complexity and cost, ensuring airtightness and effective sealing, even under overpressure, while allowing for miniaturization and easy adaptation to varying product volumes.
Implementation Method 1
an elastic return means
Implementation Method 2
the zone peripheral has a substantially conical shape before assembly with a large base, a small base and an inner face on the inner side of the large base of the cone; said peripheral zone has a deformation resulting from the bearing of e the inner face of the large base on the rigid support (24, 52) in the assembled position
Data Source
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AI summary
The present invention relates to a dispensing system intended to be secured to a container in which a fluid product is packaged, said dispensing system comprising a pump (1), an inlet non-return valve and an outlet non-return valve, an elastic return means (4) and a push button (3), said pump (1) being set in motion by way of a pushing action on the push button (3) connected to said pump (1). The dispensing system according to the invention is characterized in that it is made up of three one-piece structural parts: a rod (5), a collar (2) and the push button (3), at least one flap (6, 7) has a flexible and deformable peripheral region (70, 80) that is not perforated and is situated opposite the rigid support (24, 52).