Egg Cracking Blade With Arched Stop for Controlled Shell Opening

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Solution Overview

Problem

Existing egg cracking devices are not easy to use, do not break eggs in a predetermined fashion, and can result in over-cracking or injury, lacking features like a finger loop, padded attachment, or spring-loaded contact surfaces to prevent over-cutting.

Innovation Solution

A device with a generally flat blade portion secured perpendicularly to an arched base that mirrors the egg's exterior surface, featuring a finger loop, padded attachment, or spring-loaded contact surface to prevent over-cracking, and a handle for easy grasping, allowing controlled egg cracking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a blade is used to crack the egg, then the egg can be broken efficiently, but the blade may penetrate too deep and cause over-cracking or injury

Engineering Contradiction:

Improveegg cracking efficiencyVSAvoidover-cracking and injury risk

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The arched base portion is pre-configured with a contact surface that mirrors the egg's curvature, establishing a predetermined stopping point for the blade before cracking occurs. This preliminary geometric constraint prevents over-penetration before the cracking action is completed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The arched base portion acts as an intermediary element between the blade and the egg interior. It provides a controlled interface that limits blade penetration depth, mediating the cracking process to prevent direct contact with egg contents and reduce injury risk.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the blade is allowed to penetrate deeply to crack the egg shell, then the egg can be broken open, but the egg may be completely cut in half causing loss of contents

Engineering Contradiction:

Improveegg cracking effectivenessVSAvoidegg contents loss

Core Design Contradiction:

ProductivityVSLoss of substance

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

3Ease of manufacture

If a simple blade design is used, then the device is easy to manufacture, but it lacks control features to prevent over-cracking

Engineering Contradiction:

Improvedevice simplicityVSAvoidcracking control precision

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The arched base portion is designed with a curved surface that mirrors the egg's exterior geometry. This curvature provides natural guidance for the blade and creates a predetermined stopping point based on the geometric relationship between the arched base and the egg surface.

Inventive Principle:

Principle #14Spheroidality (Curvature)

4Device complexity

If no finger loop or handle is provided, then the device structure is simpler, but it is harder to grasp and use

Engineering Contradiction:

Improvedevice structure simplicityVSAvoidgrasping convenience

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The finger loop is integrated directly into the arched base portion structure, allowing the user's finger to serve as both the gripping mechanism and the actuating lever. This self-service design eliminates the need for separate handle components while improving ease of use.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9578990B2Device for cracking an egg

Publication Date: 2017.02.28 HEYDENS OWN INC

AI summary

A device for cracking eggs is provided. The device has a generally flat blade portion secured to an arched base portion. The generally flat blade portion is used to cut or crack the egg. The generally flat blade portion is perpendicularly secured to the arched base portion wherein the arched base portion mirrors the arc of the exterior surface of an average egg. A user uses the generally flat blade portion to strike the egg. The arched base portion stops the generally flat blade portion from penetrating the egg past a predetermined point. In some embodiments, a padded attachment or a spring loaded contact surface may be secured to the arched base portion and may prevent the device from over-cutting or cracking the egg. In alternative embodiments, the back of the arched base portion has a loop for securing a finger. Finally, a handle may be secured to the arched base portion to easily grasp the device.