Self-Aligning Corn Kernel Cutter With Annular Knife Ejection

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Solution Overview

Problem

Existing corn kernel cutting apparatuses are unsafe, labor-intensive, and inefficient, lacking self-centering mechanisms, leading to uneven kernel removal and potential user injury, with manufacturing complexities.

Innovation Solution

A corn kernel cutting apparatus featuring a pneumatically powered conical plunger for automatic ear alignment, an annular knife for uniform kernel separation, and a spring mechanism for cob ejection, housed within a cylindrical body for safe and efficient operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual knife cutting is used, then user control is maintained, but the process is labor-intensive and unsafe

Engineering Contradiction:

Improveuser controlVSAvoidcutting efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The apparatus enables self-service operation where the corn ear automatically centers itself on the conical plunger and the cutting mechanism automatically processes kernels as the ear is pressed through, eliminating manual positioning and repetitive cutting motions while maintaining user control through simple actuation

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical knife cutting with an automated mechanical cutting system where a blade is driven through a linear actuator to automatically sever kernels from the cob, substituting labor-intensive manual operations with automated mechanical motion

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If prior art cutting apparatuses are used, then cutting capability is provided, but self-centering mechanism is missing leading to uneven kernel removal

Engineering Contradiction:

Improvecutting capabilityVSAvoidkernel removal uniformity

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The conical plunger features an asymmetric tapered geometry that naturally guides and centers the cylindrical corn ear during insertion, creating automatic axial alignment without additional centering mechanisms, ensuring uniform kernel removal across the entire ear

Inventive Principle:

Principle #4Asymmetry

3Ease of operation

If exposed cutting mechanism is used, then cutting access is provided, but user safety is compromised

Engineering Contradiction:

Improvecutting accessVSAvoiduser injury risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The apparatus employs a cylindrical housing that encloses the cutting mechanism, providing protective shielding between the user and exposed blade components while maintaining operational access through controlled actuation interfaces

Inventive Principle:

Principle #30Flexible shells and thin films

4Speed

If pneumatic plunger without caging is used, then fast acting plunger is achieved, but user safety is compromised

Engineering Contradiction:

Improveplunger speedVSAvoiduser injury risk

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The cylindrical housing serves as protective caging that encloses the fast-acting pneumatic plunger mechanism, allowing high-speed operation while preventing user contact with moving components through rigid protective barriers

Inventive Principle:

Principle #30Flexible shells and thin films

5Ease of manufacture

If components do not inherently align along axis of operation, then manufacturing is simplified, but product alignment and uniformity suffer

Engineering Contradiction:

Improveassembly simplicityVSAvoidcomponent alignment

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The conical plunger's tapered geometry inherently guides the cylindrical corn ear into axial alignment during insertion, providing self-centering functionality that ensures precise component alignment and uniform kernel removal without complex alignment mechanisms

Inventive Principle:

Principle #4Asymmetry

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

Enables safe, efficient, and uniform kernel cutting with automatic alignment, reducing user intervention and manufacturing complexity, while ensuring safe disposal of cobs.

Implementation Method 1

A conically frustum shaped annular knife continuously formed to a cylindrical base is mounted to the receiver. The knife includes an inner bore of sufficient diameter for a cob of an ear of corn to pass through.

Methodology Applied

Scientific EffectSpring: Spring

Data Source

PatentUS20260047530A1Corn kernel cutting apparatus

Publication Date: 2026.02.19 CALZONE RONALD JOHN

AI summary

A self-aligning power-assisted corn kernel cutting apparatus is provided. The apparatus includes a cylindrical shell ported housing coupled to an actuation mechanism at a first end and an annular cutting mechanism at a second end. The actuation mechanism includes a power-assisted piston rod coupled to self-aligning plunger via a spring and an inner plunger disposed within the self-aligning plunger. In operation a user places an ear of corn within the ported housing wherein self-aligning plunger is force down upon the ear causing the ear to align properly. Power assistance is provided to the actuation mechanism which forces the ear over the annular cutting mechanism ejecting kernels through at least one port into an optional toroidal bowl. Once actuation mechanism bottoms out inner plunger forces the cob through an ejection tube.