Pleated Window Insulation Apparatus with Controlled Dispensing

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Solution Overview

Problem

Existing methods for insulating windows and patio doors using transparent plastic sheets are difficult to maneuver and apply, especially for unskilled homeowners, as the sheets tend to elongate and complicate the process of securing them to the molding.

Innovation Solution

A transparent plastic sheet is folded into pleats and wound around a cylindrical core with an adhesive on the top edge, housed in a tubular device that allows controlled unwinding and cutting, facilitating easy application and securing to window or patio door molding with the aid of adhesive tape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a large transparent plastic sheet is used to insulate windows, then insulation coverage is improved, but handling and positioning difficulty increases

Engineering Contradiction:
Improveinsulation coverage areaVSAvoidhandling and positioning difficulty
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The large transparent plastic sheet is divided into multiple smaller panels that are connected by hinges, allowing the insulation covering to be segmented into manageable sections that can be easily handled and positioned while still providing complete window coverage

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The insulation sheet is transformed from a flat 2D sheet into a 3D accordion-pleated structure that can be compactly stored and easily maneuvered, then expanded to cover the full window area when installed

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If adhesive tape is used to secure the sheet to molding, then sheet attachment is improved, but application complexity increases

Engineering Contradiction:
Improvesheet attachmentVSAvoidapplication complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Adhesive tape is pre-applied to the back of each insulated panel before installation, eliminating the need for separate taping operations during application and reducing overall application complexity while maintaining reliable attachment to the molding

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The panels are designed to be self-adhering with pre-applied tape, allowing the insulation system to attach itself to the molding without requiring additional tools or complex securing procedures

Inventive Principle:
Principle #25Self-service

3Volume of moving object

If the sheet is rolled for storage and transport, then compactness is improved, but sheet elongation and manipulation difficulty worsen

Engineering Contradiction:
Improvestorage compactnessVSAvoidmanipulation difficulty
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The rolled sheet is segmented into multiple rigid or semi-rigid panels connected by hinges, which prevents elongation when stored and transported while maintaining ease of manipulation during installation by allowing each panel to be handled separately

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11168512B2Window insulation apparatus and method
Publication Date: 2021.11.09 THERMWELL PRODUCTS CO INC
  • US11168512B2 patent drawing
  • US11168512B2 patent drawing
  • US11168512B2 patent drawing

AI summary

A window insulation apparatus includes a cylindrical core having opposite top and bottom ends. A plastic sheet has opposite top and bottom ends and is pleated along parallel fold lines that extend parallel to the top end of the sheet to form a folded sheet. Adhesive is applied adjacent the top end of the sheet. The folded sheet is wound around the cylindrical core so that the top end of the folded sheet is near the top end of the cylindrical core. A housing receives the core and the sheet wound on the core. The housing includes an elongate opening from which the sheet can be unwound. A cutting assembly is mounted to the housing substantially adjacent the elongate opening and can be moved parallel to the opening for cutting the sheet that has been dispensed from the opening.