Secure Locker Bank for Item Exchange

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Solution Overview

Problem

The need for a safe and convenient method for exchanging valuable items or cash between strangers, as in-person exchanges pose safety concerns for both buyers and sellers.

Innovation Solution

A computerized locker bank system that allows sellers to deposit items and buyers to retrieve them without direct interaction, facilitated by a locker exchange server that manages locker reservations, access codes, and payment processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If in-person exchange between strangers is used, then direct item transfer is simple, but safety risks increase for both buyers and sellers

Engineering Contradiction:
Improvesimplicity of item transferVSAvoidsafety risks
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a locker bank system as an intermediary between buyer and seller. The locker acts as a neutral third party that receives the item from the seller and releases it to the buyer after payment verification, eliminating the need for direct interaction between strangers while maintaining transaction simplicity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The transaction process is segmented into distinct phases: seller deposits item in locker, system secures item, buyer makes payment, system verifies payment, and locker releases item to buyer. This segmentation allows each party to complete their action independently without being physically present with the other party

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If locker bank system is implemented, then safety risks are reduced, but system complexity increases

Engineering Contradiction:
Improvesafety risksVSAvoidsystem complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The locker bank system operates autonomously without requiring human intervention. The automated locker receives items, secures them, verifies payments through integrated card readers, and releases items automatically. This self-service capability reduces the need for complex human-operated security systems while maintaining safety

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The locker bank system integrates multiple functions into a single platform: secure storage, payment processing, verification, and item release. By combining these functions in one universal system, the patent reduces overall complexity compared to coordinating separate security, payment, and logistics systems

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

3Ease of operation

If automated locker system is used, then convenience is improved, but cost of implementation increases

Engineering Contradiction:
ImproveconvenienceVSAvoidimplementation cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent combines the locker bank with existing payment processing infrastructure and online marketplace platforms. By merging these functions into an integrated system, the implementation leverages existing technological investments rather than requiring completely new systems, thereby reducing overall implementation costs while maintaining high convenience

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3491590B1Secure lockers for use as item exchange points
Publication Date: 2025.05.21 UNITED PARCEL SERVICE OF AMERICAN INC
  • EP3491590B1 patent drawingFigure 1
  • EP3491590B1 patent drawingFigure 2
  • EP3491590B1 patent drawingFigure 3

AI summary

A secure, computerized locker bank that is adapted to facilitate the payment for, and physical exchange of an item between entities who have brokered the sale of the item via a marketplace, such as an on-line marketplace (e.g., an on-line auction site, an on-line classified advertisement site, or an online retail marketplace), or a traditional marketplace (e.g., traditional paper classified advertisements). In particular embodiments, each locker in the computerized locker bank comprises one or more imaging devices for allowing a potential purchaser to view an item (e.g., stored within a locker) before purchasing the item and retrieving it from the locker.