Folded Temporary Bulkhead Structure for Sealing Flowable Cargo
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Solution Overview
Problem
Loading and unloading flowable products like grains, soils, and ores into shipping containers is challenging due to their fluidic characteristics, as they tend to flow out, requiring effective sealing mechanisms to fill the containers to capacity.
Innovation Solution
A double door and single door temporary bulkhead locking member made of rigid material with creases, notches, and slots that fold into a proprietary shape, wedged across the container opening, transferring pressure to the edges for sealing, and featuring extra support flaps and triangular stiffening designs for added strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temporary bulkhead is used to seal flowable products in shipping containers, then product leakage is prevented and container capacity is maximized, but the bulkhead structure becomes complex requiring creases, notches, and slots to achieve proper sealing
Solution Approach 1:
The bulkhead is divided into multiple functional segments including side edges with locking features, a top edge with sealing elements, and a bottom edge with support structures. Each segment performs a specific function: side edges lock to the container walls, the top edge seals against the product, and the bottom edge provides structural support. This segmentation allows the bulkhead to achieve reliable sealing while maintaining a manageable structure that can be manufactured and installed efficiently.
Solution Approach 2:
The bulkhead design incorporates features that extend into the third dimension, such as folded creases that create depth, protruding locking tabs that engage with container features, and layered sealing elements that contact the product at multiple points. These dimensional features enable the bulkhead to seal effectively in the confined space of a shipping container while distributing the sealing function across multiple spatial dimensions rather than relying on a single complex surface.
2Reliability
If a rigid bulkhead material is used to withstand product pressure, then sealing reliability is improved, but the bulkhead becomes difficult to install and remove from the container
Solution Approach 1:
The bulkhead incorporates dynamic elements that allow it to transition between a compact installation state and an expanded sealing state. The creases and folds enable the bulkhead to be compressed into a smaller form for easy insertion through the container door, then expand outward to engage locking features and create the sealing surface. This dynamic behavior allows rigid material to be installed easily while maintaining pressure resistance when deployed.
Solution Approach 2:
The bulkhead design includes nested or telescoping elements where portions of the structure can be inserted into one another during installation. The side edges with locking tabs can be nested within the container wall features, and the folded creases allow the bulkhead to nest into a compact configuration for storage and transport. This nesting capability reduces installation complexity while maintaining the rigid structure needed for pressure resistance.
3Adaptability or versatility
If the bulkhead is designed to fit standard container doors, then versatility is improved, but the sealing effectiveness for different container types may be compromised
Solution Approach 1:
The bulkhead is designed with universal features that allow it to function across different container types. The side edges incorporate standardized locking mechanisms that can engage with various container wall profiles, and the top edge sealing elements are designed to contact flowable products with different characteristics. The modular crease pattern allows the bulkhead to be configured for different door sizes while maintaining the same fundamental sealing principles, enabling one design to serve multiple container types effectively.
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
Effectively seals flowable products within shipping containers, preventing leakage and allowing for efficient filling to capacity, with modular designs for easy installation and stacking to maximize container height.
Implementation Method 1
When the flowable product is installed into the container the pressure on the Bulkhead is transferred to the outer edges sealing the product into the container
Implementation Method 2
The temporary bulkhead material has a series of creases, notches, slots and shapes that are folded and locked into the proprietary shape
Data Source
AI summary
A double door temporary bulkhead locking member comprising a single or joined rigid material with the angle apex pointing inward. The temporary bulkhead is wedged across the width of the inside opening of a container. When the flowable product is installed into the container the pressure on the bulkhead is transferred to the outer edges sealing the product into the container. The temporary bulkhead material has a series of creases, notches, slots and shapes that are folded and locked into the proprietary shape. A single door bulkhead locking member comprising a single or joined rigid material as a straight plain panel to fit into the single doorway of a shipping container. The temporary bulkhead is wedged across the width of the inside opening of a container when one door is closed and the other open. When the flowable product is installed into the container the pressure on the bulkhead is transferred to the outer edges sealing the product into the container. The temporary bulkhead material has a series of creases, notches, slots and shapes that are folded and locked into the proprietary shape.