Eggshell peeling apparatus

Solution Overview

Problem

Existing eggshell removal devices are not suitable for household use, as they are either too large or ineffective in loosening eggshells without damaging the egg white, and require skillful force application to crack the shell efficiently.

Innovation Solution

A two-part eggshell peeling apparatus with an inner cavity shaped to match the egg, featuring a smooth collision surface and water outlets to facilitate gentle yet effective cracking of the eggshell through controlled shaking, allowing for easy separation of the shell from the egg white.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If existing eggshell removal devices use protrusions to fracture the eggshell, then the eggshell can be broken, but fragments of eggshell may pierce into the egg white and the device requires skillful force application

Engineering Contradiction:

Improvesimplicity of device constructionVSAvoidsuccess rate of having a peeled egg intact

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces water as an intermediary substance between the eggshell and the collision surface. The water layer cushions the impact during shaking, preventing direct hard contact that would cause eggshell fragments to pierce into the egg white, while still allowing effective fracture of the eggshell for peeling.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies beforehand cushioning by filling the cavity with water before placing the egg. This water cushion is prepared in advance to absorb and distribute the impact forces during shaking, protecting the fragile egg white from damage while enabling effective eggshell fracture.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Device complexity

If the cavity does not conform to the shape of the hardboiled egg, then the device structure is simpler, but uneven collisions occur resulting in eggshell fragments still attached or pierced into the egg white

Engineering Contradiction:

Improvecomplexity of cavity shapeVSAvoideffectiveness of eggshell loosening

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The patent applies local quality by making the inner surface of the cavity specifically conform to the shape of a hardboiled egg. This localized shaping of the cavity surface ensures uniform contact and even distribution of collision forces across the entire eggshell, enabling effective and consistent peeling performance.

Inventive Principle:

Principle #3Local quality

3Productivity

If too much force is applied when shaking the device, then the eggshell cracks more effectively, but the egg white may burst

Engineering Contradiction:

Improveefficiency of eggshell crackingVSAvoiddamage to egg white

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies beforehand cushioning by filling the cavity with water before placing the egg. This water cushion is prepared in advance to absorb and distribute the impact forces during shaking, protecting the fragile egg white from damage while enabling effective eggshell fracture.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent introduces water as an intermediary substance between the eggshell and the collision surface. The water layer cushions the impact during shaking, preventing direct hard contact that would cause eggshell fragments to pierce into the egg white, while still allowing effective fracture of the eggshell for peeling.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 apparatus efficiently loosens and separates the eggshell from the hardboiled egg, minimizing damage to the egg white and ensuring easy manual removal, while being compact and easy to use for households.

Implementation Method 1

filling the apparatus with water for providing a dampening effect for the collision between the eggshell and the inner wall

Methodology Applied

Scientific EffectFluid dampening: Damping

Data Source

PatentUS20230248167A1Eggshell peeling apparatus

Publication Date: 2023.08.10 TAM RICKY

AI summary

An apparatus for assisting in removal of the eggshell of an hardboiled egg comprising a first body, a second body detachably couplable to the first body, upon coupling the first and second bodies form an inner cavity for receiving a hardboiled egg, wherein the inner cavity comprises an inner wall complementary to the shape of the hardboiled egg, the inner cavity is arranged to provide a space between the hardboiled egg and the inner wall, and the eggshell peeling apparatus further comprises at least one water outlet in fluidic communication with the inner cavity. A method of peeling eggshell of a hardboiled using the said apparatus is also disclosed.