Inflatable Life Preserver Gun Launch System

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Solution Overview

Problem

Existing inflatable life preservers face challenges in achieving long-distance launch and accuracy due to inflation before launch, and require manual throwing, which limits distance and accuracy.

Innovation Solution

A compact and aerodynamic inflatable life preserver designed to be launched from a gun in an uninflated state, with an outer layer that disintegrates or ruptures upon water contact, activating a water-activated inflator to inflate the device, allowing it to be propelled over great distances while maintaining accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the life preserver is inflated before launch, then the life preserver provides flotation capability, but the aerodynamic drag increases and launch distance decreases

Engineering Contradiction:
Improveflotation capabilityVSAvoidlaunch distance
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The life preserver is prepared in an uninflated state before launch, allowing it to be propelled as a compact projectile. Inflation occurs after water contact through automatic detection, ensuring optimal aerodynamics during flight while maintaining flotation capability upon deployment

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The inflation process is segmented into distinct phases: pre-launch uninflated state for optimal aerodynamics, water contact detection phase, and post-deployment inflated state for flotation. This temporal segmentation resolves the contradiction between needing compact size for launch and inflated size for function

Inventive Principle:
Principle #1Segmentation

2Length of moving object

If the life preserver is launched from a gun, then the launch distance increases, but the device must be thrown by hand which limits distance

Engineering Contradiction:
Improvelaunch distanceVSAvoidmanual throwing requirement
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

The life preserver system includes automatic water-activated detection and inflation mechanisms that eliminate the need for manual operation during deployment. The device automatically detects water contact and initiates inflation without requiring manual throwing or intervention, resolving the contradiction between automated gun launch and manual throwing limitations

Inventive Principle:
Principle #25Self-service

3Measurement precision

If the life preserver is launched in an aerodynamic configuration, then the launch accuracy improves, but the device must maintain compact shape which limits flotation effectiveness

Engineering Contradiction:
Improvelaunch accuracyVSAvoidflotation effectiveness
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The life preserver transitions dynamically between two states: a compact aerodynamic configuration during flight for accuracy, and an expanded flotation configuration after water contact. This dynamic state change allows the device to optimize for launch performance and then for rescue function, resolving the contradiction between aerodynamic shape and flotation effectiveness

Inventive Principle:
Principle #15Dynamics

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 the life preserver to be launched over 100 feet or more with improved accuracy and distance, maintaining a compact configuration until water entry, ensuring effective rescue operations.

Implementation Method 1

When water contacts the article, an automatic inflator is activated

Methodology Applied
Scientific EffectWater contact activation:

Implementation Method 2

The inflator, in turn, delivers compressed air into the interior of the article to inflate it

Methodology Applied
Scientific EffectCompressed gas expansion: Pressurisation

Data Source

PatentUS8869782B2Inflatable life preserver and associated delivery system
Publication Date: 2014.10.28 MISSION SYSTEMS ORCHARD PARK INC
  • US8869782B2 patent drawing
  • US8869782B2 patent drawing
  • US8869782B2 patent drawing

AI summary

Disclosed is an inflatable article that is designed to be launched to an intended target. The article is launched by a gun in an un-inflated state and inflates upon contacting water. The target can be, for example, a person being rescued. The article is initially stored in an outer layer of material. The outer layer of material may be shrink-wrap or a foam layer. The outer layer permits the article to be retained in a compact configuration prior to being launched. This, in turn, allows the article to be launched over great distances. The outer layer is designed to rupture upon inflation of the article.