Dosing Cap Sealing Mechanism for Precise Material Transfer
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Solution Overview
Problem
Existing dosing systems lack precision and require user interaction that may lead to exposure to harmful materials, with complex arrangements prone to damage and user frustration.
Innovation Solution
A dosing cap with a housing, sealing member, and biasing member that selectively biases from a resting to a dispensing position, allowing for precise measurement and dispensing without requiring the container to be returned to an upright position, minimizing user contact with the dispensed material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pump and valve system is used to draw and dispense liquid, then the liquid can be transferred from source container to receiving vessel, but precision of the dispensed volume is limited and users are subjected to unwanted exposure to potentially harmful material
Solution Approach 1:
The system divides the dosing function into separate components: a dosing cap with sealing members that isolates the harmful material within the source container, a receiving vessel that receives the dispensed liquid, and a transfer mechanism. This segmentation allows precise dosing through the dosing cap's defined pathways while protecting users from exposure by containing the harmful material throughout the transfer process.
Solution Approach 2:
The patent introduces an intermediary dosing cap assembly that acts as a mediator between the source container and receiving vessel. This intermediary component provides a controlled transfer pathway that ensures precise dosing while preventing direct user contact with harmful materials, as all transfers occur through sealed pathways within the dosing cap.
2Productivity
If users manually invert/revert or squeeze the container to direct fluid, then fluid can be transferred to a reservoir, but the process is time intensive and requires user contact with potentially harmful material
Solution Approach 1:
The dosing cap system is designed to perform the dosing and transfer operation automatically once activated. The actuator engages with the sealing members to open pathways and allow fluid transfer without requiring continuous user manipulation or contact with the material, enabling rapid repeated dosing operations while minimizing user exposure.
3Measurement precision
If a gravity-fed dispensing system with multiple valves and chambers is used, then a specific dosage can be metered out, but the complicated arrangements may become damaged/leak or frustrate users when trying to perform operations in the correct order
Solution Approach 1:
The patent combines multiple dosing functions into a single integrated dosing cap assembly. The first and second sealing members, along with the actuator, work together in one compact unit to control both the charging and dispensing pathways. This merging eliminates the need for separate valves and chambers, reducing complexity while maintaining precise dosing capability through the coordinated action of the sealing members.
Solution Approach 2:
Instead of using multiple valves that require sequential operation in a specific order, the patent inverts the approach by using sealing members that are reciprocally coupled and decoupled from their respective pathways. The actuator simultaneously controls both pathways by engaging or disengaging the sealing members, eliminating the need for users to follow a complex sequence of operations while maintaining precise dosing control.
4Measurement precision
If the container must be returned to upright position between dosages, then precise dosing can be achieved, but the process becomes time intensive
Solution Approach 1:
The dosing cap system is designed to maintain its dosing capability in any container orientation. The sealing members and actuator are configured to function regardless of whether the source container is upright, inverted, or at any intermediate angle, allowing rapid repeated dosing operations without requiring the container to be returned to a specific position, thereby eliminating time loss while maintaining precise dosing.
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
Enables repeated, precise dispensing of measured doses without user exposure and reduces the risk of system damage, providing a user-friendly and efficient material transfer process.
Implementation Method 1
The biasing member may selectively bias the sealing member from a biased compressed condition to an unbiased resting condition
Data Source
AI summary
A dosing cap for dispensing a measured dose of material includes a housing, a sealing member and a biasing member. The housing has an inlet end residing within a container and receives the material. An outlet end dispenses the material. A dosage region is interposed between the inlet end and outlet end. The sealing member is received within the housing. The sealing member includes a first seal proximate the inlet end to selectively open or close the inlet end and a second seal proximate the outlet end to selectively open or close the outlet end. When the biasing member is unbiased, the inlet end is open, the outlet orifice is closed and the dosage region is charged with material. When the biasing member is compressed, the sealing member is biased so that the inlet end is closed and the outlet orifice is open whereby the material is dispensed.