Dispensing assembly
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Solution Overview
Problem
Existing dispensing systems for coating materials lack efficient and flexible control over the flow rate of materials, particularly in self-dispensing assemblies, leading to inconsistent application and potential air introduction.
Innovation Solution
A dispensing assembly with a rotatable housing and movable closure that allows for multiple outlet openings to be aligned, enabling controlled flow rates through parallel passages, allowing for both recirculation and direct dispensing, and includes a sphere mechanism for pumping material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple pour-out dispensing method is used, then the device complexity is low, but the flow rate control precision deteriorates
Solution Approach 1:
The dispensing assembly is segmented into multiple functional components: a body with multiple outlet passages, a rotatable housing with pumping elements, and a movable closure with aligned openings. This segmentation allows each component to perform a specific function (flow control, pumping, blocking) while maintaining overall system manageability and relatively simple construction.
Solution Approach 2:
The closure is designed to be movable relative to the stem, allowing it to be positioned in different locations along the stem's length. This dynamic positioning enables the closure to align with different outlet openings (first, second, or both simultaneously), providing variable flow rate control without requiring complex electronic or mechanical control systems.
2Device complexity
If a single outlet passage is used, then the device complexity is low, but the adaptability deteriorates
Solution Approach 1:
The stem is designed with multiple outlet passages (first outlet passage and second outlet passage) that can be selectively activated. The closure can be positioned to block different combinations of these passages, allowing the same device to provide multiple dispensing modes (high flow with both passages open, low flow with one passage open, or no flow with both blocked) without requiring multiple separate dispensing devices.
3Productivity
If a rotatable housing with pumping mechanism is added, then the material transfer efficiency is improved, but the device complexity increases
Solution Approach 1:
The rotatable housing contains pumping elements (such as gears, lobes, or other mechanical pumps) that automatically transfer material from the container through the stem's outlet passages without requiring external pumping equipment. The rotation of the housing itself drives the pumping action, allowing the dispensing assembly to self-generate the necessary material transfer mechanism while maintaining a relatively compact and integrated design.
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
Provides precise control over material flow rates, preventing air introduction, and ensuring consistent dispensing with adjustable flow rates for various application needs.
Implementation Method 1
a housing rotatably coupled to the body to pump material from the receptacle to the stem
Data Source
AI summary
Provided is a dispensing assembly, which may be a self-dispensing assembly for pumping a material from a receptacle. The dispensing assembly includes a body including a stem having a first outlet passage, one or more first outlet openings in communication with the first outlet passage, a second outlet passage, and one or more second outlet openings in communication with the second outlet passage, a housing rotatably coupled to the body to pump material from the receptacle to the stem, and a closure movable relative to the stem between a closed position, a first open position, and a second open position, the closure having one or more third outlet openings configured to be aligned with the one or more first outlet openings or the one or more second outlet openings, and one or more fourth outlet openings configured to be aligned with the one or more second outlet openings.