Tamper evident seal system

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Solution Overview

Problem

Current tamper evident seal systems for aircraft compartments are cumbersome, costly, and time-consuming to inspect due to the use of bulky materials and adhesive seals that blend in with the compartment color, making it difficult to detect broken seals during pre-flight inspections.

Innovation Solution

A tamper evident seal system comprising interchangeable tabs connected by an adhesive material with a contrasting color, where the adhesive material spans the compartment opening and breaks to reveal protruding tabs when tampered with, facilitating quick visual inspection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional padlocks, zip ties, or adhesive stickers are used as tamper evident seals, then the compartment can be secured, but the inspection time increases and detection difficulty increases

Engineering Contradiction:
Improvetamper detection reliabilityVSAvoidpre-flight inspection time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The seal is divided into a first tab connected to one portion of the compartment and a second tab connected to another portion, with adhesive material connecting the tabs. This segmentation allows the seal to be applied across the compartment opening, and when tampered with, the tabs protrude outward for easy visual detection during inspection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The seal system uses contrasting colors between the tabs and the compartment, or between the adhesive material and the tabs, to facilitate easy visual detection of broken seals during pre-flight inspections. The color contrast makes protruding tabs immediately noticeable.

Inventive Principle:
Principle #32Color changes

2Ease of manufacture

If traditional adhesive stickers are used, then the seal can be applied, but the adhesive does not bond effectively and is hard to detect when broken

Engineering Contradiction:
Improveseal application easeVSAvoidadhesive bonding reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The adhesive material is applied locally between the first tab and second tab, rather than covering the entire compartment. This localized adhesive application ensures effective bonding where needed while maintaining visibility and detectability of the seal components.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The seal system combines different materials with complementary properties: tabs made from rigid or semi-rigid material for structural integrity and visibility, and adhesive material for bonding. This composite approach ensures both effective attachment and detectability when broken.

Inventive Principle:
Principle #40Composite materials

3Reliability

If bulky materials and multiple fasteners are used in the seal system, then the seal can be secured, but the weight increases and manufacturing cost increases

Engineering Contradiction:
Improveseal securityVSAvoidseal system weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The invention extracts unnecessary components from traditional seal systems, eliminating bulky fasteners, multiple adhesives, and complex structures. Only the essential elements remain: two tabs and a piece of adhesive material connecting them, reducing weight while maintaining security.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The seal system uses simple, inexpensive materials that can be easily replaced after use. The tabs and adhesive material are designed as a disposable unit that provides reliable security during its service life and can be quickly replaced after inspection or tampering detection.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 solution reduces pre-flight inspection time by providing a clear visual indication of tampering through color contrast and simplifies the manufacturing and replacement process, decreasing costs and weight associated with traditional seal systems.

Implementation Method 1

a piece of adhesive material connecting the first tab to the second tab

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentUS10556687B2Tamper evident seal system
Publication Date: 2020.02.11 THE BOEING CO
  • US10556687B2 patent drawing
  • US10556687B2 patent drawing
  • US10556687B2 patent drawing

AI summary

A seat for an aircraft comprises a compartment and a seal system. The seal system comprises a first tab connected to a first portion of the compartment, a second tab connected to a second portion of the compartment, and a piece of adhesive material connecting the first tab to the second tab.