Rotating Annular Guards for Power Line Animal Deterrence
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Solution Overview
Problem
Squirrels frequently come into contact with electrical power lines and transformers, leading to potential electrocution and equipment damage due to voltage differences, causing costly repairs and power outages.
Innovation Solution
A protective apparatus comprising an elongate tube with concentrically positioned annular members that rotate independently, featuring spikes and counterweights to deter animals from climbing by causing them to fall off, and a retaining rod for secure installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a static wildlife guard is installed to prevent animal contact with high voltage equipment, then animal safety is improved, but the device lacks adaptability to deter determined climbers
Solution Approach 1:
The patent applies the dynamics principle by making the guard members rotatable rather than static. Each guard member can rotate independently about its axis, transforming from a fixed barrier into a dynamic deterrent that actively responds to animal contact. This rotational movement creates an unpredictable, moving surface that is more effective at preventing climbing while maintaining the same physical barrier properties for animal safety.
Solution Approach 2:
The patent implements periodic action through the continuous rotational movement of the guard members. As animals attempt to climb, the rotating surfaces periodically change their orientation and contact points, creating a series of unpredictable interactions rather than a single static barrier. This periodic change in configuration enhances deterrence effectiveness while the guard members remain within their constrained rotational ranges to maintain safety.
2Reliability
If multiple guard members are installed to improve protection, then animal safety is enhanced, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the protective guard into multiple independent rotatable members rather than using a single complex structure. Each guard member is a separate, relatively simple component that can rotate independently. This segmentation allows the system to achieve enhanced protection through the collective effect of multiple simple elements, where the sum of individual rotational deterrents creates a more effective overall barrier than any single complex mechanism could provide.
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
Effectively prevents squirrels and other animals from climbing onto power lines and equipment, reducing the risk of electrocution and equipment damage while allowing easy installation and maintenance.
Implementation Method 1
Each annular member may include at least one counterweight that is configured to provide the annular member with a center of gravity located at the center of the annular member, which also coincides with the longitudinal axis of the tube when the annular member is concentrically positioned on the tube. As such, the annular members will rotate and end up at random orientations after rotation has stopped.
Data Source
AI summary
A protective apparatus for a distribution line conductor includes an elongate tube configured to be installed on the conductor and a plurality of annular members concentrically positioned on the tube and configured to rotate independently of each other. The tube has a longitudinal axis and defines a longitudinally extending chamber configured to receive the conductor. The tube has opposite first and second ends and a longitudinally extending opening from the first end to the second end that facilitates installation of the elongate tube on the conductor. Each annular member includes an outer surface and a plurality of circumferentially-spaced apart members extending outwardly from the outer surface. Each annular member includes a longitudinally extending slot that is configured to align with the longitudinally extending opening of the tube to facilitate installation of the elongate tube and the plurality of annular members as an assembly on the conductor.