Dual-Side Window Screen Expanders for Measurement-Free Fit
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Solution Overview
Problem
Existing window screens require precise measurements for installation, which is often difficult for homeowners to achieve accurately, leading to costly professional installations or imperfect fits.
Innovation Solution
A screen assembly with dual side expanders that adjust to fit various window sizes without requiring precise measurements, using expandable members and biasing mechanisms for a secure fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a screen is manufactured to fit specific window dimensions, then the fit precision is improved, but the measurement precision required from the user increases
Solution Approach 1:
The screen frame incorporates expandable members that can dynamically adjust the screen's dimensions. The expandable members include biasing elements (springs) that allow the frame to expand or contract horizontally, enabling a single screen size to adapt to multiple window widths while maintaining precise fit without requiring users to measure accurately.
Solution Approach 2:
The invention changes the physical parameter of the screen frame's horizontal dimension through the expandable members. By allowing the frame's width to vary within a range (e.g., accommodating windows from 24 inches to 36 inches), the screen can be manufactured with standard dimensions and then adjusted in the field to fit different openings, eliminating the need for precise user measurement.
2Adaptability or versatility
If a screen is designed to fit various window sizes, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The screen frame is segmented into multiple components: fixed side members, expandable members with biasing elements, and connection joints. This segmentation allows the frame to be assembled in a straightforward sequence and enables the expandable portions to be independently adjusted, reducing the overall complexity while achieving versatility.
Solution Approach 2:
The biasing elements (springs) in the expandable members provide self-adjusting functionality. When the screen is installed, the springs automatically exert force to expand or contract the frame to fit the window opening, eliminating the need for complex adjustment mechanisms or multiple manual steps. The system serves itself by using elastic potential energy to maintain the expanded state.
3Manufacturing precision
If precise measurements are required for screen installation, then the installation accuracy is improved, but the ease of operation deteriorates
Solution Approach 1:
The expandable members with biasing elements perform the measurement and adjustment function automatically during installation. The user simply needs to insert the screen frame into the window opening, and the springs self-adjust the dimensions to achieve a precise fit, eliminating the need for the user to manually measure, calculate, and adjust the screen size.
Solution Approach 2:
The screen's horizontal dimension parameter is made variable through the expandable members. This allows the installation process to be simplified because the screen can accommodate a range of opening sizes without requiring the user to determine the exact measurement beforehand. The parameter change happens automatically during installation through the mechanical action of the biasing elements.
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
Enables easy selection and installation of window screens with a uniform appearance, accommodating a range of window sizes and eliminating the need for complex measurements.
Implementation Method 1
at least one biasing member (spring) configured to bias the expander member in the first direction
Data Source
AI summary
A screen assembly is configured to permit installation in various different sized windows having various different window socket dimensions. The screen assembly includes: a frame, a mesh secured to the frame, at least one expander member, and a biasing member, which may be a spring. The expander member is mounted to a first side of the frame, and configured to slide with respect to the frame between a fully retracted position, a fully extended position, and a plurality of intermediate positions. The biasing member biases the expander member toward the fully extended position. The range of sliding distances for the expander member relative to the fixed frame portion thereby provides a variable lateral extent for the screen assembly permitting its installation into various different sized windows having various different window socket dimensions.