Waterproof Synthetic Paper Tablet for Underwater Note-Taking

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Solution Overview

Problem

Conventional dive slates are limited in recording capacity, require erasure of previous work for new notes, and are cumbersome and expensive, especially in underwater environments where electronic devices are unreliable and environmentally impactful.

Innovation Solution

A tablet device configured with a removable, waterproof synthetic paper sheet that can be pre-printed with relevant information, allowing for efficient note-taking and reuse, while being cost-effective and environmentally friendly, with a design that prevents air bubbles and is easy to manipulate underwater.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If conventional dive slates are used, then the device is simple and easy to manufacture, but the recording capacity is limited and requires erasure of previous work

Engineering Contradiction:
Improverecording capacityVSAvoiddevice structure
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The device is divided into a rigid frame assembly and a removable support palette with waterproof paper sheets. This segmentation allows the paper sheets to be easily replaced or added without replacing the entire device, thereby increasing recording capacity while keeping the overall device structure simple and manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support palette is designed to be removable from the frame assembly, allowing dynamic adjustment of the recording medium. Users can add, remove, or replace paper sheets as needed, providing flexibility in recording capacity without permanently increasing device complexity.

Inventive Principle:
Principle #15Dynamics

2Loss of information

If multiple sheets are used to increase recording capacity, then information storage is improved, but the pages stick together and are difficult to manipulate underwater

Engineering Contradiction:
Improverecording capacityVSAvoidmanipulability underwater
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

Each sheet is separated by rigid frame structures and support palettes that maintain physical separation between sheets. This segmentation prevents sheets from sticking together underwater while allowing users to easily access and manipulate individual sheets without the interference of adjacent pages.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Waterproof paper sheets with smooth surfaces are used that resist adhesion to each other and to the frame assembly. The thin film nature of these sheets combined with the rigid support structure allows easy manipulation underwater while maintaining waterproof integrity.

Inventive Principle:
Principle #30Flexible shells and thin films

3Productivity

If electronic devices are used, then recording efficiency is improved, but reliability and cost are worsened in underwater environments

Engineering Contradiction:
Improverecording efficiencyVSAvoiddevice reliability underwater
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The device uses inexpensive, replaceable waterproof paper sheets instead of expensive electronic components. These sheets can be easily replaced if damaged or full, providing a reliable, low-cost solution that doesn't suffer from the reliability issues of electronics in underwater environments.

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

Solution Approach 2:

The device is designed to be manually operated with simple writing implements, requiring no power source or electronic systems. This self-service approach eliminates the reliability concerns associated with batteries, screens, and circuitry while maintaining adequate recording efficiency for underwater use.

Inventive Principle:
Principle #25Self-service

4Strength

If thick plastic slates are used, then durability is improved, but cost and environmental impact are worsened

Engineering Contradiction:
ImprovedurabilityVSAvoidmanufacturing cost and environmental impact
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The device combines a rigid frame assembly (providing structural strength and durability) with thin waterproof paper sheets (reducing material usage). This composite approach maintains the necessary durability for underwater use while significantly reducing the amount of plastic material required compared to traditional thick plastic slates.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

Thin waterproof paper sheets replace thick plastic materials for the recording surface. These thin films provide sufficient durability for underwater writing while being much more cost-effective and environmentally friendly to manufacture and dispose of compared to thick plastic slates.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS11691452B2Tablet device for underwater or severe environment
Publication Date: 2023.07.04 HAGAN MARK LLOYD
  • US11691452B2 patent drawing
  • US11691452B2 patent drawing
  • US11691452B2 patent drawing

AI summary

A tablet-like device is configured to have a slightly negative buoyancy and to hold a sheet of waterproof synthetic paper, or another removable, waterproof recording sheet, onto which notes or messages or sketches can be recorded via a writing implement, in an underwater or marine environment, or another extreme or severe environment.