Insulating Cooler with Waterproof Closure and Floating Foam Layer

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Solution Overview

Problem

Conventional coolers lack an effective solution for maintaining contents at desired temperatures while being portable and waterproof, as they often compromise on insulation efficiency or structural integrity.

Innovation Solution

The design incorporates a waterproof closure, an outer shell, an inner liner, and a freely floating insulating layer between the two, with the insulating layer being made of foam materials to enhance thermal retention and structural support, and features like handles and straps for portability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional coolers use rigid materials or simple closures, then portability is improved, but temperature retention and waterproofing deteriorate

Engineering Contradiction:
ImproveportabilityVSAvoidtemperature retention
Core Design Contradiction:
Ease of operationVSTemperature

Solution Approach 1:

The cooler is divided into multiple functional layers: an outer shell for structural support and portability, an insulating layer for thermal retention, and an inner liner for waterproofing. This segmentation allows each layer to optimize its specific function without compromising the others, resolving the contradiction between portability and temperature retention.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cooler employs composite construction combining different materials: rigid outer shell material for portability, insulating foam material for temperature retention, and waterproof liner material for sealing. This composite approach enables the system to achieve multiple contradictory requirements simultaneously by leveraging the strengths of each material type.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If conventional coolers lack waterproof closures, then ease of access is improved, but water resistance deteriorates

Engineering Contradiction:
Improveaccess to contentsVSAvoidwater resistance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The waterproof closure mechanism is pre-configured with sealing elements and interlocking features that automatically engage when the lid is closed. This preliminary arrangement ensures water resistance is achieved without requiring additional user actions, maintaining both ease of access and reliable waterproofing.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A waterproof closure mechanism acts as an intermediary between the opening access requirement and the waterproofing requirement. The closure includes sealing elements that mediate between the need for easy content access and the need for water resistance, allowing both functions to coexist.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If conventional coolers use fixed insulation structures, then manufacturing simplicity is improved, but insulation efficiency deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidinsulation efficiency
Core Design Contradiction:
Ease of manufactureVSTemperature

Solution Approach 1:

The insulating layer is designed to float freely between the outer shell and inner liner rather than being rigidly fixed. This dynamic configuration allows the insulation to conform to the cooler's shape and maintain optimal thermal barriers, improving insulation efficiency while keeping the manufacturing process relatively simple through self-positioning.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The insulating layer functions as a flexible thermal barrier that can adapt to the cooler's geometry. This flexible approach to insulation provides superior thermal performance compared to rigid fixed structures, while the simplicity of placing a free-floating layer maintains ease of manufacture.

Inventive Principle:
Principle #30Flexible shells and thin films

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

This configuration maintains contents at desired temperatures for extended periods, is resistant to water ingress, and provides structural integrity, ensuring effective temperature retention and portability.

Implementation Method 1

an insulating layer floating freely in between the outer shell and the inner liner

Methodology Applied
Scientific EffectThermal Insulation: Thermal Insulation

Data Source

PatentUS20210139227A1Insulating Device and Method for Forming Insulating Device
Publication Date: 2021.05.13 YETI COOLERS LLC
  • US20210139227A1 patent drawing
  • US20210139227A1 patent drawing
  • US20210139227A1 patent drawing

AI summary

An insulating device can include an aperture having a waterproof closure which allows access to the chamber within the insulating device. The closure can help prevent any fluid leakage into and out of the insulating device if the insulating device is overturned or in any configuration other than upright. The closure may also prevent any fluid from permeating into the chamber if the insulating device is exposed to precipitation, other fluid, or submersed under water. This construction results in an insulating chamber that is substantially impervious to water and other liquids when the closure is sealed.