Glowing Frame Illuminates Hazardous Placards

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Solution Overview

Problem

Hazardous material placards on semi-tractor trailer trucks are often overlooked, especially at night or in adverse weather conditions, posing safety risks and making it difficult for drivers and emergency responders to identify potentially dangerous cargo.

Innovation Solution

A glowing frame with weatherproof LED strips attached to the trailer, securely holding the placard in place and powered by the vehicle's side-marker or tail-light system, enhances visibility of the placard during low-light and inclement weather conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If traditional placard holders are used, then the placard is visible during daytime, but the placard becomes invisible at night or in adverse weather conditions

Engineering Contradiction:
Improveplacard visibilityVSAvoidplacard identification reliability
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The placard frame incorporates LED light strips that emit light in visible colors (amber or red) to change the visual appearance of the placard from dark/hidden to brightly illuminated, enabling detection by motorists and emergency responders in low-visibility conditions

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The LED light strips act as an intermediary between the placard and the observer, providing an additional visual signal that mediates the communication of hazardous material information when the placard itself is not sufficiently visible

Inventive Principle:
Principle #24Intermediary (Mediator)

2Area of stationary object

If the placard is made larger to improve visibility, then the placard is more noticeable, but the complexity of the mounting system increases

Engineering Contradiction:
Improveplacard sizeVSAvoidmounting system complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The frame structure serves multiple functions simultaneously: it provides the mounting interface for the placard, houses the LED illumination system, provides structural attachment to the vehicle, and guides the placard into proper position, thereby reducing overall system complexity despite the added illumination functionality

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

3Reliability

If the placard is securely attached to prevent loss, then placard retention improves, but the ease of removing the placard for replacement decreases

Engineering Contradiction:
Improveplacard retentionVSAvoidplacard replacement ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mounting system transitions from a static attachment to a dynamic one where the placard can be easily inserted and removed through a simple insertion/removal motion, while still maintaining secure retention during vehicle operation through the frame's structural constraints

Inventive Principle:
Principle #15Dynamics

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

Significantly improves the visibility of hazardous material placards for other motorists and emergency responders, reducing the risk of placard loss and facilitating quicker response to potential hazards, while meeting the need for a durable and mandated safety solution.

Implementation Method 1

A glowing frame with weatherproof LED strips attached to the trailer

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentUS8910403B2Glowing frame for a hazardous warning placard
Publication Date: 2014.12.16 NIMTZ PAT D
  • US8910403B2 patent drawing
  • US8910403B2 patent drawing
  • US8910403B2 patent drawing

AI summary

A glowing frame for a hazardous material placard is an apparatus used to illuminate the hazardous material placard during the night or dangerous weather conditions. The apparatus is attached to a vehicle carrying hazardous material and includes a frame, a plurality of light emitting diode (LED) strips, a drain hole, a pair of wires, and a disconnection mechanism. The hazardous material placard and the LED strips are situated in between a front portion and a back portion of the frame. The drain hole allows moisture to be released from within the frame. The pair of wires is used to complete a circuit between the LED strips and the vehicle's side-marker or tail light system. The disconnection mechanism activates the LED strips and locks the placard in place. In addition, the disconnection mechanism deactivates the LED strips and releases the placard from the frame.