Window Extrudate Thermal Break Structure to Prevent Wall Warping

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Solution Overview

Problem

Existing thermally enhanced extrudates for windows and doors face challenges in construction, as U-shaped or C-shaped walls are prone to breaking, warping, and deformation during assembly, and the thermal insulation material can cause structural instability.

Innovation Solution

A thermally enhanced extrudate design featuring a channel with equal widths at both ends, filled with a solid insulation material formed by curing a flowable material, which is anchored by cleats and ribs to maintain structural integrity and reduce heat transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If thermal insulation material is positioned within the channel of U-shaped or C-shaped walls, then thermal insulation performance is improved, but the walls become prone to warping and deformation

Engineering Contradiction:

Improveheat transferVSAvoidshape stability of walls

Core Design Contradiction:

Loss of energyVSStability of the object's composition

Solution Approach 1:

The patent transitions from symmetric U-shaped walls to asymmetric L-shaped walls with unequal flange lengths. The first flange extends beyond the channel while the second flange is shorter, creating an asymmetric structure that provides structural stability while accommodating thermal insulation material without warping deformation.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The extrudate is divided into distinct functional segments: the channel for glass reception, the thermal break for insulation, and the flanges for structural support and assembly. This segmentation allows each component to optimize its function independently, with the thermal break containing insulation material that does not cause wall deformation.

Inventive Principle:

Principle #1Segmentation

2Loss of energy

If U-shaped or C-shaped walls are used to enclose thermal insulation material, then thermal break functionality is achieved, but the walls are difficult to construct and prone to breaking

Engineering Contradiction:

Improveheat transfer reductionVSAvoidconstruction difficulty

Core Design Contradiction:

Loss of energyVSEase of manufacture

Solution Approach 1:

Instead of forming complex U-shaped or C-shaped walls that enclose thermal insulation material, the patent inverts the approach by using simple L-shaped walls with a thermal break that contains the insulation material. This inversion simplifies the extrusion process and reduces construction difficulty while maintaining thermal break functionality.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent extracts the thermal insulation material from the wall structure itself and places it within a dedicated thermal break enclosure. This separation allows the walls to be simpler L-shaped structures that are easier to manufacture, while the thermal break provides the thermal insulation function without compromising wall integrity.

Inventive Principle:

Principle #2Taking out (Extraction)

3Loss of energy

If thermal insulation material is positioned within the channel, then thermal insulation is enhanced, but the extrudate walls warp and deform

Engineering Contradiction:

Improveheat transferVSAvoiddimensional accuracy

Core Design Contradiction:

Loss of energyVSManufacturing precision

Solution Approach 1:

The patent introduces a thermal break as an intermediary structure between the channel and the external environment. This thermal break contains the thermal insulation material and provides structural support, preventing the channel walls from warping or deforming while maintaining thermal insulation performance.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The extrudate combines different materials with complementary properties: the channel and walls provide structural integrity, the thermal break provides thermal insulation, and the flanges provide mechanical strength for assembly. This composite structure maintains dimensional accuracy while enhancing thermal insulation.

Inventive Principle:

Principle #40Composite materials

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 design provides a thermally enhanced extrudate that resists warping and deformation, maintains structural rigidity, and creates a continuous thermal break, effectively reducing heat transfer between the interior and exterior sides.

Implementation Method 1

formed by curing a flowable material

Methodology Applied

Scientific EffectCuring: Phase Change

Implementation Method 2

creates a continuous thermal break, effectively reducing heat transfer between the interior and exterior sides

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS12553276B2Thermally enhanced extrudate for windows and doors

Publication Date: 2026.02.17 QUAKER WINDOW PRODUCTS CO

AI summary

A thermally enhanced extrudate includes a channel, a first wall, and a second wall. The channel extends along a longitudinal axis from a first end to a second end of the thermally enhanced extrudate and is shaped to receive glass or a frame. The second wall is spaced from the first wall. The first wall and the second wall partially enclose a thermal break extending along the longitudinal axis. The thermal break has a first width defined between the first wall and the second wall at an upper end of the thermal break and a second width defined between the first wall and the second wall at a lower end of the thermal break. The thermally enhanced extrudate further includes a solid insulation material in the thermal break between the first and second walls and formed by curing a flowable material.