Bead Foam Applicator for Sealing Building Gaps
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Solution Overview
Problem
Buildings face energy inefficiencies and discomfort due to air leaks through gaps, cracks, and seams, which traditional insulation methods like spray foam struggle to effectively seal.
Innovation Solution
A method and apparatus for applying a bead of material, using a supply machine and applicator to mix and apply a controlled bead of insulation material precisely, rather than spraying, to seal gaps and seams in buildings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spray foam is applied at high pressure to insulate large surfaces, then productivity is improved, but manufacturing precision deteriorates because the foam sprays away from the nozzle and cannot precisely seal gaps and seams
Solution Approach 1:
The insulation application process is segmented into two distinct modes: spray application for large surfaces and bead application for gaps and seams. The system allows operators to switch between spray mode and bead mode, enabling precise sealing of specific areas without compromising overall productivity.
Solution Approach 2:
The nozzle is designed with dynamic characteristics that allow it to transition between spray and bead application modes. By adjusting trigger pressure and duration, the system dynamically changes the foam delivery pattern to match the specific sealing requirements of different building features.
2Area of stationary object
If spray foam is used to fill voids and gaps, then coverage area is improved, but manufacturing precision deteriorates because the foam cannot be applied in a controlled manner to specific crack locations
Solution Approach 1:
The system applies different foam delivery qualities to different locations: spray mode for broad coverage areas and bead mode for precise gap and seam sealing. This local differentiation of application quality ensures that each area receives the appropriate foam delivery method for its specific requirements.
Solution Approach 2:
The bead application mode uses controlled, partial action by applying foam only to the extent needed for sealing specific gaps and seams, rather than excessive spray application that would waste material and reduce precision. The operator controls the bead application to match the exact dimensions of the target feature.
3Productivity
If high pressure spray is used to apply foam, then productivity is improved for large surfaces, but object-generated harmful factors worsen due to foam overspray and material waste
Solution Approach 1:
The bead application mode uses partial action by applying only the necessary amount of foam to seal gaps and seams, avoiding the excessive material application inherent in high-pressure spray. This reduces material waste while maintaining sealing effectiveness.
Solution Approach 2:
The system converts the high-pressure spray capability, which causes overspray and waste, into a beneficial dual-mode system where the same hardware can perform both spray (for efficiency) and bead (for precision, low waste) applications, thereby eliminating the harmful effects while preserving productivity benefits.
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 method provides a precise and effective sealing of gaps and seams, reducing energy loss, noise, and improving comfort by ensuring a tight building envelope.
Implementation Method 1
The applicator mixes the parts of the material at a nozzle
Implementation Method 2
Spray foam expands to coat and seal several types of surfaces and cracks
Data Source
AI summary
Methods and apparatus for mixing and applying a bead of material. For example, the bead of material can be used to seal gaps cracks and seams of a building. The apparatus includes a supply machine and an applicator. The supply machine provides each of the parts of the material to the applicator at a controlled rate. The applicator mixes the parts of the material at a nozzle. The applicator provides a bead (rather than spraying) of the mixed material through the nozzle. The bead of material may be applied in a precise manner to seal gaps, cracks and seams of an existing building and/or the bead may be provided during new construction of a building between components of the building.