Shipping Container Pool Assembly Using Reversible Clamp Joints

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Solution Overview

Problem

Existing swimming pool construction methods using intermodal shipping containers are limited to single containers and require complex welding, posing safety risks and high costs.

Innovation Solution

A method to join multiple modified intermodal shipping containers using threaded rods and captive couplers, eliminating the need for welding and allowing on-site assembly in a reversible process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple shipping containers are joined using welding, then the structural strength and reliability are improved, but the construction safety deteriorates due to on-site welding hazards and the complexity increases

Engineering Contradiction:
Improvestructural strengthVSAvoidconstruction safety
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the welding process (thermal/chemical joining) with a mechanical fastening system using clamps and bolts. The clamps apply compressive force to press the container walls together, while bolts provide tensile force to secure the joint, eliminating the need for on-site welding operations and associated safety hazards.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces intermediate joining components (clamps and bolts) that mediate the connection between containers. These intermediaries transfer and distribute forces across the joint, providing reliable structural connection without requiring direct welding between container walls, thus improving safety while maintaining strength.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple shipping containers are joined using welding, then the structural strength is improved, but the device complexity and construction cost increase

Engineering Contradiction:
Improvestructural strengthVSAvoidconstruction complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent substitutes complex welding procedures with simpler mechanical assembly operations. The clamps and bolts are designed for straightforward installation without requiring specialized welding equipment, skilled welders, or complex preparation steps, thereby reducing construction complexity while achieving reliable joints.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent segments the joining function into separate, standardized components (clamps and bolts) that can be independently manufactured and assembled. This modular approach simplifies the overall construction process compared to monolithic welding operations, allowing for easier assembly, disassembly, and replacement of individual components.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If single shipping containers are used for pools, then the construction process is simpler, but the design versatility and adaptability are limited

Engineering Contradiction:
Improveconstruction simplicityVSAvoiddesign options
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent divides the pool structure into multiple separable container units that can be joined together in various configurations. This segmentation maintains the simplicity of using standard container modules while enabling diverse pool designs through different arrangements (side-by-side, end-to-end, stacked), thus achieving both construction simplicity and design versatility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs universal joining components (clamps and bolts) that can connect containers in multiple orientations and configurations. These standardized interfaces allow the same basic components to serve various design requirements, enabling adaptability without increasing construction complexity.

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

4Stability of the object's composition

If containers are permanently joined, then the structural stability is improved, but the adaptability and reversibility are lost

Engineering Contradiction:
Improvestructural stabilityVSAvoidreversibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent creates a dynamic joining system where the connection between containers can be adjusted or reversed as needed. The mechanical fasteners allow for controlled assembly and disassembly while maintaining stable connections during use, enabling the structure to transition between stable and reconfigurable states unlike permanent welding joints.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent incorporates preliminary design features in the joining components that enable easy assembly and disassembly. The clamps and bolts are pre-configured with appropriate threading, spacing, and engagement mechanisms that provide stable connections during operation while allowing for straightforward reversal when needed, balancing stability with adaptability.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12577798B2Container assembly and method for making same
Publication Date: 2026.03.17 HERRING JASON
  • US12577798B2 patent drawing
  • US12577798B2 patent drawing
  • US12577798B2 patent drawing

AI summary

The invention is an assembly of prefabricated metal receptacles forming a swimming pool and a method for constructing the assembly. Among other features, the assembly is characterized by guided or unguided clamping structures that allow on-site construction without requiring on-site welding or access to the bottom or interior of the assembly.