Adjustable Plunger Dispenser for Precise Substance Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dispensing methods from bottles or containers lack precision, as the quantity dispensed can only be estimated and is not accurately measured.
Innovation Solution
A dispenser with a measuring chamber and adjustable plunger system that allows for precise measurement and dispensing of a substance, featuring a valve that can be closed to seal the chamber and a spout for controlled dispensing, enabling the adjustment of the chamber volume by rotating or moving the plunger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pouring from a bottle or container, then the dispensing operation is simple, but the measurement precision is poor
Solution Approach 1:
The dispensing system is segmented into distinct functional components: a measuring chamber for precise volume definition, a valve mechanism for controlled flow, and a dispensing outlet. The measuring chamber is further segmented with calibration markings to divide the total volume into measurable portions, enabling precise measurement while maintaining simple operation through the integrated design.
Solution Approach 2:
The measuring chamber is pre-configured with a specific volume capacity and calibration markings before use. The valve mechanism is pre-positioned to control flow direction, and the chamber can be pre-filled to the desired measurement level. This preliminary preparation eliminates the need for measurement during the actual dispensing action, maintaining simplicity while ensuring precision.
2Measurement precision
If using a measuring chamber with adjustable volume, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The measuring chamber serves multiple functions: it acts as a storage container, a measurement device with calibration markings, and a controlled dispensing unit. The valve mechanism simultaneously controls both the filling and dispensing operations. This multi-functionality reduces the need for separate components, maintaining simplicity while achieving precise measurement through the integrated design.
Solution Approach 2:
The plunger is nested within the measuring chamber, allowing it to adjust the internal volume by moving vertically. The valve mechanism is integrated into the chamber structure, with the plunger shaft passing through the valve assembly. This nested arrangement enables volume adjustment and flow control without requiring separate external mechanisms, reducing overall device complexity while maintaining measurement precision.
3Measurement precision
If the valve is closed to seal the substance, then the measurement precision is maintained, but the ease of operation decreases
Solution Approach 1:
The valve mechanism is designed to automatically seal when the plunger reaches its upper position, as the plunger head engages with the valve seat. Conversely, when the plunger is withdrawn, the valve automatically opens to allow dispensing. This self-actuating mechanism eliminates the need for separate valve control operations, maintaining ease of use while ensuring precise containment when measurement is complete.
Data Source
AI summary
A dispensing method and dispenser that dispenses a measured amount of a substance from a container are provided. The dispenser includes a measuring chamber having an adjustable volume, and a conduit section that adjusts the volume of the measuring chamber by moving a plunger that forms a wall of the measuring chamber. The substance is poured into the measuring chamber from the container through a valve, and the valve closes to seal the substance within the measuring chamber. The plunger may include a spout through which the substance is dispensed when the plunger is driven by the conduit section into the measuring chamber to reduce the volume of the measuring chamber.