Disposable Roof Coating Applicator for High Viscosity Elastomeric Materials
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Solution Overview
Problem
Current roof coating applicators for high viscosity materials like elastomeric coatings are prone to clogging and unreliable, especially at lower temperatures, making them inconvenient and costly for metal roof repairs.
Innovation Solution
A disposable roof coating applicator with a lightweight, low-cost design that includes a body with a nozzle and plunger assembly, allowing for efficient dispensing of high viscosity materials to roof seams and joints without clogging, enabling use at lower temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional roof coating applicators are used for high viscosity materials, then material can be applied to roof seams, but the applicators are prone to clogging and become unreliable especially at lower temperatures
Solution Approach 1:
The patent employs a disposable applicator design where the entire coating application device is discarded after use. This eliminates clogging issues by ensuring each applicator is fresh and unused, guaranteeing reliable performance for high viscosity materials without the degradation that occurs with reusable applicators.
Solution Approach 2:
The applicator design incorporates specific geometric parameters including a nozzle with a large opening relative to the dispensing hole, and a plunger with optimized surface area ratios. These parameter changes allow the material to flow smoothly through the applicator without clogging, even at lower temperatures where high viscosity materials are more prone to blocking.
2Productivity
If machinery is used to apply high viscosity coating materials, then coating can be applied to the roof, but the machinery tends to clog, break, and is overall unreliable
Solution Approach 1:
The patent replaces complex, expensive, and unreliable machinery with a simple disposable applicator that can be manually operated. This eliminates the mechanical complexity that leads to breakdowns and clogging while maintaining adequate coating application capability for roof seams and joints.
Solution Approach 2:
The invention extracts only the essential function of coating application from complex machinery, creating a simplified device that focuses solely on delivering the coating material to the roof surface without the additional mechanical components that are prone to failure.
3Duration of action of stationary object
If high viscosity materials are used for roof restoration, then additional benefits are provided versus roof replacement, but working with such materials is difficult and expensive
Solution Approach 1:
The disposable applicator makes working with high viscosity materials simple and cost-effective by eliminating the need for expensive, complex application machinery. Each applicator is designed to work specifically with high viscosity materials, making the restoration process accessible and easy to perform.
Solution Approach 2:
The applicator design includes features that allow the material itself to assist in the application process through its own pressure and flow characteristics, reducing the need for complex mechanical assistance or specialized operator skills.
4Ease of manufacture
If reusable applicators are used for coating application, then equipment cost can be reduced, but they become unreliable and require frequent maintenance
Solution Approach 1:
The patent accepts the trade-off of using disposable rather than reusable applicators. The low cost of each individual applicator makes the disposable approach economically viable, while guaranteeing consistent reliable performance for every application without the degradation and maintenance issues of reusable equipment.
Data Source
AI summary
A disposable roof coating applicator that includes an application head, a body, and a plunger assembly. An adapter is removably attachable to the application head and the body has an interior space and is formed by at least one side wall having an exterior wall and an interior wall. The coating applicator also includes a plunger that is movably disposed within the interior space of the body. The disposable roof coating applicator is configured and otherwise designed to take in, store, and transport approximately ½ to 2 gallons of viscous material to be applied neatly and uniformly onto a substantially vertical, substantially horizontal, or inclined surface.