Transparent Slide Rule Flight Computer with Protective Film

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Solution Overview

Problem

Conventional flight computers used in aviation, made of materials like aluminum, paperboard, or rigid plastic, face issues such as printings rubbing off easily and being prone to damage when exposed to water, leading to reduced durability and functionality.

Innovation Solution

A slide rule style flight computer design featuring interconnected transparent plastic discs with protective ink layers and films, a plug-in card, and a damping device, ensuring durability, waterproofness, and high accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional materials (aluminum, paperboard, rigid plastic) are used for flight computer, then structural strength is improved, but printing durability deteriorates (printings easily rubbed off)

Engineering Contradiction:

Improvestructural strengthVSAvoidprinting durability

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent applies a protective film over the printed degree scales and texts before they can be damaged. This protective layer acts as a cushion against wear and tear, preventing the printing from being rubbed off during normal use. The protective film is applied in advance to protect the vulnerable printing elements.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Ease of manufacture

If paperboard material is used for flight computer, then cost is reduced (economical version), but waterproofness deteriorates (useless once it drops into water)

Engineering Contradiction:

ImprovecostVSAvoidwaterproofness

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent uses a protective film that can be applied over the entire flight computer surface, including the paperboard base. This thin film barrier provides waterproof protection while maintaining the underlying paperboard structure and its cost advantages. The film creates a water-resistant layer without requiring a complete material replacement.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If rigid plastic material is used for flight computer, then durability is improved, but weight increases

Engineering Contradiction:

ImprovedurabilityVSAvoidweight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent creates a composite structure by combining paperboard (or aluminum) base material with a protective film coating. This composite approach provides the durability and protection of plastic-like materials while maintaining the lighter weight and cost benefits of the original base material. The protective film adds minimal weight while significantly improving durability.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS11763104B2Slide rule style flight computer

Publication Date: 2023.09.19 CYA AVIATION TECH LTD

AI summary

This invention relates to a slide rule style flight computer. The front disc and the back disc are connected and fixed by positioning clips. The front disc includes a front base disc and a front rotary disc. The front rotary disc is rotatably fixed on the front base disc. The front disc includes a front base disc and a front rotary disc. The front rotary disc is rotatably fixed on the front base disc.