Stackable Ventilated Molds for High-Volume Edible Utensil Production

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Solution Overview

Problem

Current methods for producing edible utensils on a large industrial scale are inefficient for high-volume production of biodegradable and edible cutlery, lacking in scalability and throughput.

Innovation Solution

A process involving stackable, ventilated pressing molds that form and maintain 3D utensil shapes from edible dough through steaming and dehydration, allowing for the production of multiple utensils simultaneously using a platform and oven rack system, with mold members made from durable materials like stainless steel for industrial applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional single-mold production methods are used, then the production process is simple, but the productivity is low and cannot meet high-volume industrial production requirements

Engineering Contradiction:
Improveproduction volumeVSAvoidmold system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The production system is segmented into multiple independent mold layers, each capable of producing utensils simultaneously. The stackable mold assembly divides the production process into discrete horizontal layers that can be independently filled and processed, enabling high-volume production while maintaining manageable complexity through modular organization

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple mold layers are nested vertically within a single steam chamber, with each layer containing multiple cavity molds. This nesting arrangement allows numerous utensils to be produced simultaneously in a compact vertical configuration, dramatically increasing productivity without requiring proportionally larger equipment

Inventive Principle:
Principle #7Nested doll (Nesting)

2Productivity

If multiple utensils are produced simultaneously using stackable molds, then the productivity increases, but the steam distribution and cooking uniformity may be compromised

Engineering Contradiction:
Improveproduction volumeVSAvoidcooking uniformity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The mold structure incorporates localized ventilation features including vent channels and perforations positioned at specific locations within each mold layer. These localized vents ensure uniform steam distribution and condensation across different regions of the stacked molds, maintaining cooking uniformity despite the increased complexity of producing multiple utensils simultaneously

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The ventilation system utilizes the vertical dimension by incorporating vent channels that extend through the stacked mold layers. This three-dimensional ventilation approach ensures steam and condensation can move freely throughout the entire stack, maintaining uniform cooking conditions across all layers and positions

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Manufacturing precision

If ventilated stackable molds are used, then the cooking uniformity and steam distribution improve, but the mold design complexity increases

Engineering Contradiction:
Improvecooking uniformityVSAvoidmold structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The mold layers are designed as universal, interchangeable components that can be stacked in various configurations. Each mold layer incorporates integrated ventilation features and standardized connection points, allowing the same basic mold design to serve multiple functions and positions within the stack, reducing overall design complexity while maintaining cooking uniformity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The ventilation channels and mold cavity structures are merged into a single integrated component rather than separate parts. The vent channels are formed directly within the mold material, combining the molding function with the ventilation function, thereby improving cooking uniformity without proportionally increasing structural complexity

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If the molds are made from durable materials like stainless steel, then the reliability and durability improve, but the manufacturing cost increases

Engineering Contradiction:
Improvemold durabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The utensils themselves are designed as disposable edible products, eliminating the need for expensive, durable utensils. This allows the use of simpler, less expensive mold materials while maintaining high reliability for the production process, as the molds only need to withstand steaming conditions rather than repeated mechanical use

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

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 efficient, high-volume production of edible and biodegradable utensils with sufficient strength for use, which can be consumed or composted, offering an ecologically friendly alternative to plastic and improving production efficiency and scalability.

Implementation Method 1

steaming the stacked assembly of molded dough

Methodology Applied
Scientific EffectSteaming: Convection

Implementation Method 2

ventilated, stackable, pressing molds that form and maintain 3D utensil shapes from edible dough through steaming and dehydration

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP3869967B1Process for producing edible and biodegradable utensils using ventilated, stackable, pressing molds
Publication Date: 2023.10.04 KONG ZHICONG
  • EP3869967B1 patent drawingFigure 1
  • EP3869967B1 patent drawingFigure 2
  • EP3869967B1 patent drawingFigure 3~4

AI summary

The present invention provides pressing molds for preparing edible utensils. In particular, the invention provides stackable three-dimensional molds that can be used steam, bake, perfect and dehydrate edible dough into utensils of sufficient strength to be used as cutlery. The invention also provides systems and methods for using the molds to produce utensils.