Foldable Draft Stopper for Double Door Gap Sealing

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Solution Overview

Problem

Existing door systems, particularly sliding and rotating doors, suffer from gaps at the base that allow drafts, bugs, and unwanted odors to enter, leading to temperature regulation issues and increased energy costs, and current draft stopping systems often require removal for ingress/egress, which is inconvenient.

Innovation Solution

A foldable draft stopper with a longitudinally extending body featuring a first and second portion connected by a central pivoting mechanism, allowing it to be easily rotated away from the door to allow opening and closing without being completely removed, and filled with insulating and weighted materials to stay in place and prevent drafts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a draft stopping system is installed at the door base, then drafts and unwanted entries are prevented, but the device must be completely removed to allow door opening and closing

Engineering Contradiction:
Improvedraft preventionVSAvoiddoor operation convenience
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The draft stopper is designed with a foldable structure featuring a hinge connection between the first portion and second portion, allowing it to dynamically change configuration from an extended position that blocks drafts to a folded position that clears the door path, enabling both draft prevention and convenient door operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The draft stopper body is divided into multiple segments (first portion, second portion, and central portion) connected by hinges, allowing the device to be folded into a compact configuration that does not obstruct door movement while maintaining draft blocking capability when extended

Inventive Principle:
Principle #1Segmentation

2Temperature

If a draft stopper is positioned to effectively seal the door base, then temperature regulation is improved, but the device obstructs door movement when closed

Engineering Contradiction:
Improvetemperature regulationVSAvoiddoor opening/closing
Core Design Contradiction:
TemperatureVSEase of operation

Solution Approach 1:

The foldable design with hinge connections enables the draft stopper to transition between an extended sealing position that blocks temperature loss and a folded retracted position that clears the door path, resolving the conflict between thermal efficiency and operational convenience

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The draft stopper is positioned in the extended sealing configuration when the door is closed to maintain temperature regulation, and folded into the retracted configuration before door opening to prevent obstruction, allowing optimal temperature control without compromising door operation

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If the draft stopper remains in place during door operation, then installation simplicity is improved, but it blocks the door path when folded

Engineering Contradiction:
Improveinstallation simplicityVSAvoiddoor path clearance
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

Dividing the draft stopper into hinged segments allows it to be installed once in a fixed position while achieving variable configuration (extended or folded) through the hinge mechanism, maintaining installation simplicity while enabling path clearance when needed

Inventive Principle:
Principle #1Segmentation

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

Effectively prevents drafts and unwanted entries while allowing easy access through the door, maintaining temperature regulation and reducing energy costs by staying in place without obstructing the door's movement.

Implementation Method 1

a central portion forming an attachment portion which provides a pivoting or hinged connection between the first and second portions

Methodology Applied
Scientific EffectPivoting/Hinging: Hinge

Implementation Method 2

filled with insulating and weighted materials to stay in place

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 3

filled with insulating and weighted materials to stay in place and prevent drafts

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS12000205B2Foldable draft prevention device
Publication Date: 2024.06.04 POTPOURRI GRP INC
  • US12000205B2 patent drawing
  • US12000205B2 patent drawing
  • US12000205B2 patent drawing

AI summary

A draft protector for a double door system has a longitudinally extending body having a first portion, a second portion, and a foldable central connecting portion disposed between the first and second portion. The first portion is positioned adjacent a first door and the second portion is positioned adjacent a second door, and either the first or second portion is folded over and in parallel alignment with the first or second portion when the first or second door is in an open position.