Confined Space Access Mechanism with Integrated Gas Sensor

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

In confined spaces, workers often neglect to properly test the atmosphere before entry, leading to accidents and fatalities due to asphyxiation, despite regulatory requirements for pre-entry testing, highlighting the need for a method to ensure safe entry protocols are followed.

Innovation Solution

Integrating a gas sensor/meter system with an alarm status annunciator module into the access mechanism for confined spaces, which forces a safety reading and issues a preemptive alarm if the atmosphere is hazardous, ensuring that entry is only allowed when conditions are safe, and alerting management to non-compliant behavior.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If workers manually test atmosphere before confined space entry, then safety compliance is maintained, but worker negligence leads to accidents and fatalities

Engineering Contradiction:

Improvesafety complianceVSAvoidasphyxiation risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs atmospheric testing automatically before entry is permitted, eliminating the need for manual testing by workers. The gas sensor/meter system is pre-positioned and automatically activates when the access mechanism is engaged, ensuring testing occurs before any potential hazard exposure.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system performs self-testing of the atmospheric conditions without requiring worker intervention. The integrated gas sensor/meter automatically monitors and evaluates atmospheric safety, removing the human element from the testing process and eliminating negligence risks.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If atmospheric testing is mandated by regulations, then safety protocols are established, but worker neglect of protocols results in continued accidents

Engineering Contradiction:

Improvesafety protocol simplicityVSAvoidprotocol adherence

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system eliminates the need for workers to manually operate testing equipment by implementing automatic atmospheric monitoring. The gas sensor/meter system autonomously performs all testing functions, removing the burden of protocol adherence from workers while ensuring consistent compliance.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual mechanical process of workers operating gas meters is replaced with an automated electronic sensing and monitoring system. This substitution transforms a human-dependent manual process into an autonomous electronic system that cannot be neglected.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Loss of information

If pre-entry atmospheric testing is performed, then hazardous conditions are detected, but entry may still occur if workers disregard warnings

Engineering Contradiction:

Improvehazard detection accuracyVSAvoidentry into hazardous space

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The system provides immediate feedback through the alarm status annunciator module that clearly indicates whether atmospheric conditions are safe or hazardous. This visual and audible feedback creates an unambiguous safety signal that must be acknowledged before entry is permitted, reducing the likelihood of disregarding warnings.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system prevents entry into hazardous conditions by requiring atmospheric testing and alarm clearance before access is permitted. The alarm status annunciator module acts as a gatekeeper, providing preliminary protection against entry into unsafe environments.

Inventive Principle:

Principle #9Preliminary anti-action

4Ease of manufacture

If manual atmospheric testing equipment is provided, then safety monitoring capability is available, but equipment misuse or non-use leads to fatalities

Engineering Contradiction:

Improveequipment availabilityVSAvoidsafety function execution

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The gas sensor/meter system is integrated with the access mechanism itself, combining the safety monitoring function with the entry control system. This merging ensures that safety testing is an inherent part of the entry process rather than a separate, potentially neglected step.

Inventive Principle:

Principle #5Merging (Combining)

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

This solution significantly reduces the risk of accidents by ensuring that workers cannot enter hazardous environments without first confirming safe conditions, thereby enhancing safety compliance and reducing liability for employers.

Implementation Method 1

Atmospheric testing of confined spaces prior to entry are critical to safe entry of many confined spaces... the atmosphere is tested with certified equipment

Methodology Applied

Scientific EffectGas detection:

Data Source

PatentUS10957180B2Confined space failsafe access system

Publication Date: 2021.03.23 LEVINE ROBERT

AI summary

A method and safety device for use in accessing confined spaces that incorporates atmospheric safety monitoring and alarm annunciation into a physical access device/mechanism for the purpose of preventing the human confined space entrant from entering a confined space containing a hazardous atmosphere.