Fixed-Dose Dropper Pump Using a Recyclable Elastic Member
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Solution Overview
Problem
Existing methods for dispensing liquid contents in fixed amounts are inefficient and often result in varying dosages due to pressure variations, and components like metal springs increase manufacturing costs and recycling difficulties.
Innovation Solution
A container design featuring a dropper with a pressurizing part, an ascending and descending part, and an elastic part made of the same material, allowing for precise dispensing of a fixed amount by adjusting internal pressure and facilitating easy recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional pressurizing pump with metal spring is used, then repeated pumping operations can be provided, but manufacturing cost increases and recycling becomes difficult
Solution Approach 1:
The patent changes the material parameter of the elastic member from metal spring to rubber or resin material. This material substitution maintains the elastic function for repeated pumping operations while eliminating the complexity and recycling issues associated with metal springs. The rubber or resin elastic member can be easily integrated with the nozzle body and disposed of together with the consumable liquid container.
2Ease of operation
If a pipette type drawing means with compression part is used, then contents can be drawn, but liquid amount varies according to pressurization degree
Solution Approach 1:
The patent applies preliminary action by pre-filling the pipette with a specific amount of liquid before use. The compression part is pre-compressed during the filling process, and when the dropper is detached from the container, the pre-compressed elastic member automatically discharges the pre-measured liquid amount. This eliminates the need for users to control pressurization degree, ensuring consistent liquid dispensing.
Solution Approach 2:
The system performs self-service by automatically measuring and dispensing the liquid amount through the pre-compressed elastic member. The elastic member's compression state automatically controls the liquid discharge volume, eliminating the need for user intervention to measure or control the amount, thereby ensuring consistent dosing.
3Manufacturing precision
If individual packaging method with capsules is used, then fixed amount of liquid can be provided, but large amount of liquid remains in capsule after use
Solution Approach 1:
The patent applies dynamics by making the dropper detachable rather than fixed. The dropper can be detached from the container after use, allowing users to transfer the remaining liquid to another container or fully utilize the liquid by squeezing the flexible pipette. This dynamic design eliminates the waste inherent in disposable capsules while maintaining fixed amount dispensing capability.
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 container enables accurate dispensing of fixed amounts with reduced material variation and supports easy recycling by using uniform components, enhancing user convenience and environmental sustainability.
Implementation Method 1
an elastic part disposed between the pressurizing part and the ascending and descending part to provide an elastic force to the pressurizing part
Implementation Method 2
a pressurizing part for changing the internal pressure of the pipette by means of pressurization to discharge the contents of the body
Data Source
AI summary
Provided is a container for discharging contents including: a body for accommodating the contents therein; and a dropper detachably coupled to top of the body to suck and discharge the contents of the body, the dropper including: a first cap detachably coupled to top of the body; a pipette coupled to the inside of the first cap to allow at least a portion to be accommodated in the body to suck the contents of the body; and button parts including: a pressurizing part for changing the internal pressure of the pipette by pressurization to discharge the contents of the body, an ascending and descending part ascended together with the pressurizing part according to the detachment of the dropper to allow the pressurizing part to protrude outward from the first cap, and an elastic part disposed between the pressurizing part and the ascending and descending part to provide an elastic force to the pressurizing part.