Inflatable Evacuation Slide with Flame-Resistant Coating

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Solution Overview

Problem

Existing evacuation slide technologies for buildings do not adequately address the need for a compact, rapidly deployable, and flame-resistant evacuation system for home use, particularly in scenarios involving house fires, where conventional solutions are either too large or not specifically designed for residential applications.

Innovation Solution

A compact, inflatable evacuation slide system housed in a rectangular container with compressed gas canisters and activators, featuring a gripping fabric to secure the slide to the window sill, and a design that allows for rapid deployment and inflation within seconds, with flame-resistant materials to withstand nearby fires.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional evacuation slide systems are used for buildings, then evacuation function is provided, but the systems are either too large or not specifically designed for residential applications

Engineering Contradiction:
Improveadaptability to residential applicationsVSAvoidsize of evacuation system
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The evacuation system is divided into separate functional components: an inflatable slide portion, an inflatable pillow portion, and compressed gas canisters. These segmented components are stored in a container and deployed separately, allowing the system to be compact when stored yet provide full evacuation functionality when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inflatable slide and pillow are stored in a compressed, nested configuration within the container. The slide is rolled and folded to fit within the container volume, and the pillow is stored in a compressed state. Upon deployment, these nested components expand to their full functional sizes.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Loss of time

If rapid deployment is achieved using compressed gas canisters, then evacuation time is reduced, but system complexity increases

Engineering Contradiction:
Improvedeployment timeVSAvoidcomplexity of inflation system
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

Compressed gas canisters are used to rapidly inflate both the slide and pillow portions. The pneumatic expansion provides immediate inflation without requiring external power sources or complex mechanical deployment mechanisms, reducing deployment time while keeping the inflation system relatively simple.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The compressed gas is pre-stored in canisters within the container, ready for immediate use. The slide and pillow are pre-positioned in the container in a compressed state, so that upon activation, inflation and deployment occur simultaneously without requiring sequential setup steps.

Inventive Principle:
Principle #10Preliminary action

3Duration of action of stationary object

If flame-resistant materials are used to withstand fire heat, then protection duration is extended, but material selection and manufacturing complexity increase

Engineering Contradiction:
Improvefire resistance durationVSAvoidmanufacturing complexity
Core Design Contradiction:
Duration of action of stationary objectVSEase of manufacture

Solution Approach 1:

The slide and pillow are constructed from composite materials that combine flame resistance with flexibility and durability. The use of coated fabrics or layered composite structures provides fire protection while maintaining the inflatable nature of the components. These composite materials are selected to meet fire resistance requirements without requiring overly complex manufacturing processes.

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 system enables safe and rapid evacuation from upper floors of homes by deploying a 15-40 foot inflatable slide in under 10 seconds, providing a stable descent path while resisting heat from fires for an extended period.

Implementation Method 1

A first canister includes a compressed gas, such as carbon dioxide, nitrogen or mixtures thereof... A second canister includes a compressed gas

Methodology Applied
Scientific EffectCompressed gas expansion: Pressure Increase

Implementation Method 2

a urethane-coated nylon that is sprayed with gray aluminized paint which protects the slide from fire that is nearby by reflecting heat

Methodology Applied
Scientific EffectHeat reflection: Reflection

Data Source

PatentUS8973706B2Life saving device for the home
Publication Date: 2015.03.10 BAMBRICK DAVID PATRICK
  • US8973706B2 patent drawing
  • US8973706B2 patent drawing
  • US8973706B2 patent drawing

AI summary

The present invention relates to a life-saving apparatus and method for escaping from a second floor or a third floor of a burning building, wherein the life-saving apparatus includes a container, a set of wheels, an inflatable pillow, an inflatable slide, a set of canisters full of compressed gas, and a set of activators operatively connected to the canisters.