Air-displacing vented dispenser cap for smooth fluid dispensing
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Solution Overview
Problem
Conventional dispenser caps fail to prevent the 'glug-glug' effect during fluid dispensing due to air lock issues, and they cannot be used upright after creating a vent hole for pressure equalization without spilling.
Innovation Solution
A self-venting dispenser cap with an orifice configuration that allows air pressure equalization, featuring a primary vent for air displacement and a secondary vent for redirecting spillage back into the effluent stream, enabling smooth dispensing without the need for external venting and allowing the container to be oriented in any direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vent hole is created in the container to equalize pressure and allow smooth liquid flow, then the liquid can be dispensed without air lock, but the container cannot be stood up without spilling liquid from the vent hole
Solution Approach 1:
The venting function is segmented into two separate orifices: a first orifice for air intake and a second orifice for liquid dispensing. This segmentation allows the air venting path to be separated from the liquid flow path, enabling the container to be oriented in any position without liquid spilling from the vent, while still maintaining smooth liquid dispensing by allowing air to replace the dispensed liquid.
Solution Approach 2:
Different orifices are provided with different local qualities - the first orifice is configured specifically for air intake with characteristics optimized for gas flow, while the second orifice is configured for liquid dispensing with characteristics optimized for liquid flow. This local differentiation allows each orifice to perform its specific function effectively regardless of container orientation.
2Device complexity
If conventional dispenser caps are used, then the structure is simple, but the 'glug-glug' effect occurs due to air lock during dispensing
Solution Approach 1:
The cap structure is segmented to include two separate orifices with distinct functions - one dedicated to air intake and another to liquid dispensing. This segmentation eliminates the air lock problem that causes the glug-glug effect by providing a continuous air replacement path, while maintaining relatively simple cap structure suitable for integration with existing containers.
3Adaptability or versatility
If additional re-sealable orifices are added to allow air displacement while providing sealing when the container is situated differently, then the container can be oriented in any direction, but the device complexity increases
Solution Approach 1:
Instead of using complex re-sealable mechanisms, the invention uses simple segmented orifices - a first orifice for air and a second orifice for liquid. The air orifice remains open to allow air displacement in any orientation, while the liquid orifice provides the dispensing function. This simple segmentation achieves orientation flexibility without requiring complex sealing mechanisms.
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 self-venting cap prevents the 'glug-glug' effect by maintaining constant pressure inside the container, ensuring smooth fluid dispensing and redirecting any spillage back into the flow stream, making it suitable for various orientations and types of fluids or solids.
Implementation Method 1
This self-venting spout cap equalizes the pressure inside and outside the dispensing container, so the pressure remains constant, thereby essentially preventing the 'glug-glug' effect.
Implementation Method 2
a self-venting, air-displacing, and pressure-equalizing, pouring cap with a pouring spout for incorporation into almost any type of dispensing container, such that when the contents of the dispensing container are drained out in an effluent stream, the operation goes smoother.
Data Source
AI summary
An air-displacing vented dispenser cap for attachment to a dispenser container having a dispenser cap with a liquid dispensing spout outlet and a separate air inlet with a member therebetween defining an air flow passageway to act as a vent for air to enter the inside of the dispenser container on which the dispenser cap would be mounted. By providing an integral air inlet within the dispenser cap, the liquid within the dispenser container can be displaced by air entering the container, such that the flow of egressing liquid will be a smooth flow without the conventional “glug-glug” effect.