Water-Activated Parachute Release Mechanism for Submerged Pilot Safety
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Solution Overview
Problem
Existing parachute systems lack a reliable mechanism for automatic release when a pilot is unconscious and submerged in water, posing a critical safety risk.
Innovation Solution
A fluid-activated automatic release apparatus comprising a liquid sensor, cam member, disk, and fork mechanism that automatically detaches the parachute harness from a vest upon submersion in water, utilizing a linear actuator and electromagnetic radiation to trigger the release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manual release mechanism is used, then the pilot can control the release, but the pilot becomes vulnerable to water entrapment if unconscious or unable to operate
Solution Approach 1:
The release system automatically activates when the pilot is submerged in water, eliminating the need for manual operation. The liquid-activated sensor detects water presence and triggers the release mechanism, allowing the system to serve itself without pilot intervention in critical emergency situations.
Solution Approach 2:
The patent replaces manual mechanical operation with an automated sensor-based system. A liquid-activated sensor detects water presence and triggers an electromagnetic or pneumatic release mechanism, substituting the need for manual mechanical activation with an automated response system.
2Reliability
If existing parachute systems are used, then the structure is simple, but there is no reliable mechanism for automatic release when submerged in water
Solution Approach 1:
The release system is divided into separate functional modules: a liquid-activated sensor component, a cam member with cavities, a disk, and a fork member. This segmentation allows each component to perform its specific function independently, making the overall system more reliable while keeping individual components relatively simple.
Solution Approach 2:
The patent employs a nested arrangement where the disk is positioned within the cam member cavity, and the fork member is integrated with the disk assembly. This nesting compactifies the mechanism, reducing overall device complexity while maintaining the necessary functional complexity for water-activated release.
3Object-affected harmful factors
If enhanced circuitry for electromagnetic protection is added, then protection against interference increases, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary shielding layer or protective circuitry that acts as a mediator between external electromagnetic interference and the sensor/release mechanism. This intermediary protection layer blocks harmful electromagnetic waves while allowing the core release function to operate normally.
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 safe and reliable automatic release of the parachute harness from a submerged pilot, ensuring safety by preventing entrapment underwater and incorporating enhanced circuitry for increased protection against electromagnetic interference and radio frequency interference.
Implementation Method 1
a liquid sensor component moveably coupled to a cam member
Implementation Method 2
a linear actuator configured to moveably engage a cam member responsive to a liquid being sensed
Data Source
AI summary
A fluid activated parachute release apparatus includes a liquid sensor component moveably coupled to a cam member including a cavity; a disk configured to engage the cavity of the cam member; and a fork member releasable from the disk responsive to rotation of the cam member.