Lockable Storage Container With Card Retention and Keyed Access

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Solution Overview

Problem

Conventional currency transport containers lack secure storage solutions for both paper currency and credit cards, often failing to provide separate locking compartments and secure access to the interior volume.

Innovation Solution

A portable storage container with a main compartment featuring a credit card slot, credit card retention member, key slot, and lock compartment, ensuring secure storage and access control through a hinged top member and integrated lock mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional currency transport containers are used, then currency can be transported, but secure storage for both currency and credit cards is not provided

Engineering Contradiction:
Improvestorage capabilityVSAvoidsecurity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The container is divided into separate compartments: a main compartment for currency and a separate lockable compartment for credit cards. This segmentation allows each compartment to be optimized for its specific purpose while providing secure storage for both item types simultaneously.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A lock mechanism serves as an intermediary security element between the user and the credit card compartment. The lock provides an additional layer of security, ensuring that credit cards remain protected while the main compartment remains accessible for currency transport.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If conventional containers are used, then transport is possible, but separate locking compartments for credit cards are not provided

Engineering Contradiction:
Improveaccess controlVSAvoidcontainer structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The credit card compartment is nested within the main container structure, utilizing the existing container framework. This nesting approach adds the locking functionality without requiring a completely separate external container, thus managing complexity while providing secure storage.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The container combines multiple functions into a single unit: currency transport, credit card storage, and lockable security. By merging these functions into one integrated container rather than requiring separate items, the design simplifies the overall system while enhancing operational convenience.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If traditional currency transport containers are used, then currency can be transported, but ability to lock and inhibit access to interior volume is not provided

Engineering Contradiction:
Improveaccess securityVSAvoidcontainer design
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The locking mechanism is applied locally to the credit card compartment rather than the entire container. This localized approach provides enhanced security where needed (for valuable credit cards) while keeping the main currency compartment accessible, and simplifies manufacturing compared to locking the entire container structure.

Inventive Principle:
Principle #3Local quality

4Adaptability or versatility

If credit cards are stored in conventional containers, then they can be carried, but unauthorized access cannot be prevented

Engineering Contradiction:
Improvestorage functionVSAvoidunauthorized access
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The lock mechanism provides preliminary protection against unauthorized access before any attempt to access the credit cards. By requiring authentication (key or combination) before accessing the compartment, the system preemptively prevents harmful unauthorized access while maintaining the storage function.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS12630354B2Storage container
Publication Date: 2026.05.19 YI XIAO FEI
  • US12630354B2 patent drawing
  • US12630354B2 patent drawing
  • US12630354B2 patent drawing

AI summary

A storage container that is configured to receive, store and lock items such as but not limited to paper currency and credit cards. The invention includes a main compartment having an interior volume defined by integrally formed bottom, sidewalls, front wall, rear wall and top member. The top member is hingedly secured providing access to the interior volume of the main compartment. A slot is formed in the rear wall wherein the slot has adjacent thereto a credit card retention member disposed within the interior volume of the main compartment. A key compartment is present adjacent to the main compartment and includes a key slot formed in the bottom configured to have key journaled therethrough. A lock compartment is present adjacent to key compartment wherein the lock compartment is configured to house a lock therein. The top member includes a recessed rolled rear edge hingedly coupled intermediate the sidewalls.