Molded Pulp Containers for Resealable, Stackable Particulate Handling
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Solution Overview
Problem
Existing containers for particulate materials, such as litter or granular products, are often made of plastic, which is not eco-friendly, and ergonomic solutions are lacking, leading to issues with leakage and management.
Innovation Solution
Molded pulp containers with integrated features like hinged shells, molded pulp threads, and optional fitments or liners that provide a siftless and stackable solution for holding particulate materials, allowing for resealability and efficient handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blow molded container with resealable screw cap or molded container with removable lid is used, then particulate materials can be contained, but plastic waste increases and ergonomic handling is poor
Solution Approach 1:
The patent changes the material parameter from plastic to molded pulp, transforming the container from a non-biodegradable plastic product to an eco-friendly, compostable alternative that maintains containment reliability while eliminating plastic waste
Solution Approach 2:
The patent employs composite construction by joining multiple pulp shells together to form the container body, creating a structurally sound container that combines the benefits of natural materials with engineered strength for reliable particulate containment
2Reliability
If cardboard box with bag within is used, then particulate leakage is prevented, but ergonomics and manageability deteriorate
Solution Approach 1:
The patent uses flexible pulp shells that can be molded into ergonomic shapes and folded for compact storage, providing both leak prevention through the enclosed structure and improved handling through the flexible, lightweight material
Solution Approach 2:
The patent divides the container into multiple pulp shells that can be joined together, allowing the structure to be both rigid enough for leak prevention and flexible enough for ergonomic handling, while also enabling flat packaging for efficient storage
3Strength
If multiple pulp shells are joined together to form enclosed body, then structural integrity is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple pulp shells into a single integrated container structure through joining elements, combining the strength of multiple components into one unified unit that maintains structural integrity while simplifying the overall design
Solution Approach 2:
The patent introduces joining elements as intermediary components that connect the pulp shells, providing a simple and effective mechanism that strengthens the container structure without adding significant complexity to the overall design
Data Source
AI summary
Containers for holding particulate materials are provided. The containers may be formed from molded pulp. The containers may include molded pulp shaped or threaded features formed integrally on the container that may aid in providing closure to the device. The containers may optionally include a fitment and/or liner, or may be free of fitments and liners. The containers may optionally have inner load bearing members. The containers may be stackable.