Handheld Primer Applicator with Piercing Seal Mixing
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Solution Overview
Problem
Conventional primer application methods involving two-part systems result in waste, inefficiency, and safety concerns due to the need for manual mixing and handling of volatile components, along with the complexity of precision application using brushes.
Innovation Solution
A hand-held single barrel device with separate chambers for primer components and activators, where a movable seal piercing component mixes the contents to produce activated primer, which is then delivered to a substrate surface via an integral dispensing component, such as a wicking material, directly and precisely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-part primer systems are used with separate containers, then primer activation is achieved, but significant waste of primer occurs due to unknown volume requirements
Solution Approach 1:
The primer system is segmented into two separate chambers within a single applicator device: a first chamber containing the primer component and a second chamber containing the primer activator. This segmentation allows precise control over the mixing ratio and eliminates waste by providing exactly the needed amount of activated primer for each application.
Solution Approach 2:
The separate primer and activator containers are merged into a single applicator device with integrated chambers and mixing mechanism. The chambers are positioned adjacent to each other with a seal between them, and a movable seal piercing component enables on-demand mixing when the seal is pierced, combining the benefits of separate storage with integrated application.
2Reliability
If primer components are manually mixed and handled, then primer activation is achieved, but the process becomes time consuming and inefficient
Solution Approach 1:
The applicator device performs the mixing function automatically through its integrated design. When the movable seal piercing component pierces the seal between chambers, the primer and activator self-mix through their respective delivery channels without requiring manual intervention, saving time and improving efficiency.
Solution Approach 2:
The primer and activator are pre-positioned in separate chambers within the applicator device, ready for immediate use. The components are prepared in advance and stored in the correct proportions, eliminating the need for technicians to transport, handle, and measure components during the application process.
3Reliability
If primer components containing volatles are handled, then primer activation is achieved, but additional safety requirements and complexity increase
Solution Approach 1:
The volatile primer components are segmented into separate sealed chambers, isolating them from each other and from the environment until the moment of application. This segmentation reduces the need for complex safety equipment and procedures by minimizing exposure to volatile fumes during storage, transport, and handling.
Solution Approach 2:
The volatile components are extracted from traditional open-container systems and enclosed within sealed chambers of the applicator device. This extraction eliminates the need for separate ventilation equipment, safety data sheet management, and complex handling procedures associated with volatile material storage.
4Manufacturing precision
If brush application is used for primer application, then coverage is achieved, but the brush requires cleaning or disposal, increasing complexity and cost
Solution Approach 1:
The mixing mechanism and dispensing tip are merged into an integral unit within the applicator device. The mixed primer flows directly from the mixing chamber through the dispensing tip onto the substrate, eliminating the need for separate brushes and their associated cleaning or disposal requirements.
Solution Approach 2:
The brush component is extracted from the application system and replaced with a dispensing tip that delivers activated primer directly to the substrate. This extraction eliminates the contamination and cleaning issues associated with brushes while maintaining precise application 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
This method reduces waste, simplifies the application process, minimizes safety hazards, and allows for precise and controlled delivery of activated primer directly to the substrate, eliminating the need for separate brushes and reducing overall complexity and cost.
Implementation Method 1
mixing the primer component and the primer activator to activate the primer component and produce an activated primer
Implementation Method 2
the integral dispensing component comprises a wicking component, and wherein delivering a predetermined amount of the activated primer comprises delivering the activated primer to the substrate surface via the wicking component
Data Source
AI summary
Methods and apparatuses are disclosed relating to the delivery of primer compounds in liquid form to substrates from a hand-held device. Apparatuses are disclosed that, in a single barrel device, store primer components, mix primer components to achieve an activated primer, and deliver the activated primer to a substrate surface.