Long-Handle Demolition Ram for Safe Glazing Removal at Distance

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Solution Overview

Problem

The removal of large-scale glazing poses a significant risk of serious or fatal injury due to sharp edges and unpredictable breaking, especially when using traditional methods like manual lifting or hammering, which can lead to uncontrollable shattering and unexpected movement of glass fragments.

Innovation Solution

A demolition ram comprising a pusher and handle with a slenderness ratio of at least twenty-five to one hundred ten, allowing for the safe removal of glazing by exerting an impulsive force from a distance, using a nonslip plating to stabilize the pusher and a handle extension for increased distance, and catching falling fragments with a receptacle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional manual lifting or hammering methods are used to remove glazing, then the removal process can be completed, but the risk of serious or fatal injury increases due to sharp edges and unpredictable breaking

Engineering Contradiction:

Improvesafety of removal processVSAvoidrisk of injury from sharp edges and glass fragments

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The glazing panel is divided into multiple smaller sections by creating control breaks or score lines, allowing the large pane to be broken into manageable, predictable pieces that can be safely removed one at a time, reducing the risk of uncontrolled shattering

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A removal tool with a long handle is used as an intermediary between the worker and the glazing panel, allowing the worker to apply force from a safe distance and maintain control over the breaking process without being in direct contact with potentially dangerous glass fragments

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a long handle with high slenderness ratio is used to maintain safe distance, then the risk of injury is reduced, but the device complexity increases

Engineering Contradiction:

Improveexposure to sharp edges and fragmentsVSAvoidstructure of demolition ram

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Instead of making the worker wear protective gear and work close to the danger zone, the solution inverts the approach by using a long handle to move the danger zone (glazing panel) away from the worker, making the worker's position inherently safer

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The handle's slenderness ratio is optimized to provide sufficient length for safety while maintaining structural integrity and manageability, balancing the parameters of length, thickness, and material properties to achieve both safety and ease of use

Inventive Principle:

Principle #35Parameter changes

3Productivity

If force is applied directly to the glazing panel, then the removal process is faster, but control is lost and unpredictable breaking occurs

Engineering Contradiction:

Improvespeed of glazing removalVSAvoidcontrol over glazing panel

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

Control breaks or score lines are created in the glazing panel before the main removal action, pre-weakening specific areas to guide where the glass will break, ensuring predictable fragmentation and maintaining control during the removal process

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The removal process is divided into sequential stages: first creating control breaks, then applying force to break the panel along predetermined lines, and finally removing the broken sections, allowing controlled progress rather than attempting to remove the entire panel in one action

Inventive Principle:

Principle #19Periodic action

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

Reduces the risk of injury by maintaining a safe distance from the glazing during demolition, allowing controlled removal and containment of falling fragments, thus minimizing the likelihood of sharp edges causing harm.

Implementation Method 1

exerting an impulsive force onto the glazing by touching the glazing with the pusher of the demolition ram

Methodology Applied

Scientific EffectImpulsive force: Impact Force

Implementation Method 2

using a nonslip plating to stabilize the pusher

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 3

moving the glazing to a position where the glazing can fall due to its weight

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentUS12558578B2Demolishing of glazing at a distance

Publication Date: 2026.02.24 STATON LARRY DAVID

AI summary

Demolishing glazing at a distance uses a demolition ram comprising a pusher, a handle having proximal and distal ends, and fasteners connecting the handle at the distal end to the pusher. The demolishing comprises touching a subpane of the glazing with the pusher, pushing the subpane out of the glazing, and moving the subpane so that it can fall due to its weight, and then catching the falling subpane with a receptacle comprising a mat. The pushing comprises exerting a force about the proximal end, and generating an impulsive force onto the subpane by the exerting through the touching. The impulsive force is generally coaxial with the force of the exerting. The handle has a slenderness ratio of at least twenty-five and not more than one hundred ten that distances the exerting from the generating.