Woodpecker deterrent system for timber utility poles

A reflective panel assembly with a heat-shrunk plastic sleeve on timber utility poles uses visual deterrents to simulate rivals, addressing the need for a non-toxic, passive, and durable solution to woodpecker damage.

WO2025179333A1PCT designated stage Publication Date: 2025-09-04COPPER CARE WOOD PRESERVATIVES INC
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Patent Information

Application Number
PCT/AU2025/050164
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-27
Filing Date
2025-02-26
Publication Date
2025-09-04

AI Technical Summary

Technical Problem

Existing deterrent methods for woodpecker damage on timber utility poles are either toxic, require active components, or lack durability, necessitating a non-toxic, passive, and long-lasting solution that exploits woodpeckers' territorial instincts.

Method used

A reflective panel assembly applied around the pole, secured by a heat-shrunk plastic sleeve, creates multiple reflections to deter woodpeckers by simulating a rival, using materials like polyethylene and reflective panels that reflect visible and ultraviolet light.

Benefits of technology

The system effectively deters woodpeckers by leveraging their territorial behavior, maintaining structural integrity of the poles with ease of installation and resistance to environmental degradation.

✦ Generated by Eureka AI based on patent content.

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Abstract

A woodpecker deterrent system for a timber utility pole is disclosed. The system comprises a reflective panel assembly configured to be applied around a portion of the timber utility pole and a plastic sleeve that is heat-shrunk to encapsulate the reflective panel assembly. When installed, the reflective panel assembly and the heat-shrunk plastic sleeve form a plurality of reflective panels around the timber utility pole. The reflective surfaces create a visual deterrent by producing multiple reflections of the surrounding environment, which woodpeckers perceive as the presence of a rival bird, discouraging them from pecking the pole. The plastic sleeve secures the reflective panel assembly in place while also providing environmental protection, ensuring long-term durability. The system is designed for ease of installation and does not require chemical treatments or moving components, offering a low-maintenance and non-toxic solution for mitigating woodpecker damage to timber utility poles.
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Description

Woodpecker Deterrent System for Timber Utility PolesField of the Invention

[0001] The present invention relates to a system for deterring woodpeckers from damaging timber utility poles. More particularly, the invention concerns a passive, non-toxic deterrent system that utilises reflective surfaces to discourage woodpeckers from pecking the pole by exploiting their territorial instincts.Background of the Invention

[0002] Timber utility poles are foundational components of telecommunications and electricity distribution infrastructure, serving as the backbone for the overhead transmission of electrical power and communication signals across vast distances. Constructed from treated wood to enhance durability and longevity, these poles support the weight of electrical cables, transformers, and other critical equipment. They are strategically positioned and engineered to withstand environmental stresses, playing a crucial role in ensuring the uninterrupted flow of electricity and data, which are essential for modern life’s functioning and connectivity.

[0003] However, woodpeckers pose a significant threat to the integrity of timber utility poles. These birds, driven by natural behaviours such as foraging for food, creating nesting sites, or territorial drumming, can cause extensive damage to wooden poles. Their persistent pecking and drilling create holes and gouges in the wood, compromising the pole's structural integrity. Over time, this damage can weaken the pole, making it susceptible to further degradation from weathering and pests, and increasing the risk of catastrophic failure. Such failures not only disrupt essential services but also necessitate costly repairs or replacements of the affected poles to restore the functionality of the electrical and telecommunications networks. The economic impact of woodpecker damage on utility infrastructure is significant, driving the need for effective deterrent strategies to protect these vital assets and ensure the reliability of critical communication and electricity distribution systems.

[0004] Various approaches have been attempted to deter woodpeckers. US 6576673 B2 (Landers) describes a woodpecker-deterring coating formed by combiningisophorone with heated wax, followed by the addition of thickeners such as clay and silica, and mixing these with an acrylic resin. After cooling, this mixture is blended with ceramic pellets under a vacuum and then dried. These dried pellets are subsequently mixed into a polymer resin, such as epoxy, to produce a coating designed to prevent woodpecker damage. This composition leverages the properties of isophorone and a blend of materials to create a deterrent effect, offering a protective layer for wood that is unappealing to woodpeckers.

[0005] US 4414227 A (Tomlinson et al.) similarly proposes a woodpecker deterrent in the form of a chemical repellent composition containing methyl anthranilate as the active ingredient. This substance is applied to surfaces vulnerable to woodpecker damage, such as utility poles, wooden buildings, or trees. Methyl anthranilate acts as a non-toxic, aversive agent to woodpeckers, deterring them from pecking and causing damage to the treated surfaces without harming the birds.

[0006] DE 202009012831 U1 (Karsten et al.) describes a specialised facade paint designed for woodpecker defence, applied to the exteriors of buildings. This coating is engineered to activate defensive mechanisms only when kinetic energy from a woodpecker’s pecking is detected. These mechanisms include piezo crystals, which generate voltage under pressure, flint particles embedded within the paint, or iodine- based explosive paint that reacts upon contact. The defensive effects initiated by these components range from sparking and popping sounds to electric shocks and the smell of fire, creating sensory stimuli that effectively deter woodpeckers and prompt them to avoid the treated surface without causing harm.

[0007] Despite these prior attempts, there remains a need for an effective, non -toxic, and long-lasting deterrent that prevents woodpeckers from damaging timber utility poles without requiring chemical treatments or active interventions. The present invention seeks to address this need by providing an improved deterrent system that passively discourages woodpeckers using visual stimuli while being easy to install, durable, and resistant to environmental degradation.

[0008] It is to be understood that, if any prior art information is referred to herein, such reference does not constitute an admission that the information forms part of the common general knowledge in the art, in Australia or any other country.Summary of the Disclosure

[0009] There is provided a woodpecker deterrent system for a timber utility pole. The system comprises a reflective panel assembly configured to be applied around a portion of the timber utility pole and a plastic sleeve that is heat-shrunk to encapsulate the reflective panel assembly. When installed, the reflective panel assembly and the heat-shrunk plastic sleeve form a plurality of reflective panels around the timber utility pole. The reflective surfaces create a visual deterrent by producing multiple reflections of the surrounding environment, including the woodpecker itself, which the bird perceives as the presence of a rival. This perception exploits the territorial instincts of woodpeckers, discouraging them from pecking at the pole. The plastic sleeve secures the reflective panel assembly in place while also providing environmental protection, ensuring long-term durability. The system is designed for ease of installation and requires no chemical treatments or moving components, making it a low-maintenance and non-toxic solution for mitigating woodpecker damage.

[0010] The reflective panel assembly may define the reflective panels, with the heatshrink plastic sleeve being transparent, allowing the reflective surfaces to remain visible and effective after installation.

[0011] In some arrangements, the heat-shrink plastic sleeve is itself reflective, enhancing the deterrent effect by increasing the amount of reflected light from the system.

[0012] The reflective panel assembly may comprise hingedly connected planar boards that fold around the timber utility pole, allowing for straightforward installation and ensuring that the reflective panels are properly positioned to create multiple reflective surfaces.

[0013] A preferred arrangement includes five planar boards, forming a pentagonal structure that balances the need for reflective surface area with a secure fit around the pole.

[0014] The hingedly connected planar boards may be rectangular in a flat state and configured to enclose the timber utility pole when folded, facilitating efficient manufacturing and storage prior to deployment.

[0015] To aid installation, the opposite ends of the reflective panel assembly may include connectors, which help secure the assembly around the pole before the plastic sleeve is applied.

[0016] The plastic sleeve may comprise polyethylene, selected for its durability and resistance to environmental factors such as moisture, UV exposure, and temperature fluctuations.

[0017] For proper alignment and positioning of the reflective surfaces, the reflective panel assembly may be secured to the timber utility pole before the plastic sleeve is applied.

[0018] In some cases, the plastic sleeve extends beyond the reflective panel assembly along the timber utility pole, defining portions that grip the pole when heat- shrunk. These extended portions may eliminate the need for additional fasteners.

[0019] Fasteners may also be used to secure the reflective panel assembly to the timber utility pole, particularly in environments subject to strong winds or frequent vibrations.

[0020] The plastic sleeve may be applied over the reflective panel assembly and heat- shrunk into place, ensuring a tight and secure fit around the pole.

[0021] The reflective panels may be configured to reflect visible light, creating a high - contrast mirrored effect that enhances the deterrent effect against woodpeckers.

[0022] To further improve deterrence, the reflective panels may also be configured to reflect ultraviolet light, which is visible to woodpeckers but less perceptible to human observers.

[0023] The reflective panel assembly may be formed from a lightweight polymer material, providing ease of installation while ensuring long-term durability and resistance to environmental wear.

[0024] To extend the functional lifespan of the system, the plastic sleeve may comprise a removable outer layer that can be peeled away to expose a fresh reflective inner layer.

[0025] The plastic sleeve may also feature a laminated structure, in which a heatshrink plastic layer and a reflective material layer are bonded together under heat and pressure. This arrangement ensures that the reflective properties remain effective over time and protected from environmental degradation.

[0026] Other aspects of the invention are also disclosed.Brief Description of the Drawings

[0018] Notwithstanding any other forms which may fall within the scope of the present invention, preferred embodiments of the disclosure will now be described, by way of example only, with reference to the accompanying drawings in which:

[0027] Figure 1 shows a woodpecker deterrent system applied to a timber utility pole.

[0028] Figure 2 shows a disassembled view of the system prior to installation on the utility pole.

[0029] Figure 3 shows the system installed on the utility pole.

[0030] Figure 4 shows an embodiment of the plastic sleeve comprising an outer layer defining a line of weakness, allowing it to be torn away by pulling designated portions apart to reveal an inner layer.

[0031] Figure 5 shows a top plan view of the system installed on a timber utility pole. Figure 6 shows a cross-sectional view of the sleeve and reflective panel, illustrating the reflection of light. The reflective panels are configured to reflect visible and, in some embodiments, ultraviolet light. The reflected image creates the appearance of a rival bird, discouraging woodpeckers from pecking the pole.Description of Embodiments

[0032] A woodpecker deterrent system 100 is applied to a timber utility pole 102 to mitigate woodpecker damage by providing a reflective barrier that visually deters the birds from pecking the surface of the pole. Referring to figure 1 , the system 100 is preferably positioned around an upper region of the utility pole 102, where woodpecker damage is most prevalent. The system 100 comprises a reflective panel assembly 104 and a plastic sleeve 101 that is heat-shrunk to encapsulate the reflective panel assembly 104, thereby securing it around the timber utility pole 102.

[0033] Referring to figure 2, the reflective panel assembly 104 may be configured to be applied around a portion of the timber utility pole 102 before the plastic sleeve 101 is installed. The reflective panel assembly 104 provides a series of reflective panels 105, which, when viewed by a woodpecker, create the appearance of a rival bird due to their mirrored effect. The plastic sleeve 101 is placed over the reflective panel assembly 104 and is subsequently subjected to heat 103, causing it to shrink tightly around the reflective panel assembly 104, as shown in figure 3. The combination of the reflective panel assembly 104 and the heat-shrunk plastic sleeve 101 results in the formation of a plurality of reflective panels 105 distributed around the timber utility pole 102.

[0034] The heat-shrunk plastic sleeve 101 may serve to secure the reflective panel assembly 104 in place without requiring additional fastening means. Additionally, the plastic sleeve 101 protects the reflective panels 105 from environmental degradation, ensuring that the system 100 remains effective over an extended period. In embodiments, the plastic sleeve 101 may be formed from a durable polymer material that withstands exposure to outdoor conditions, such as polyethylene.

[0035] The woodpecker deterrent system 100 provides a passive, non-harmful deterrent by leveraging the natural territorial behaviour of woodpeckers. When the birds perceive their reflection in the reflective panels 105, they are deterred from pecking the utility pole 102, thereby preserving its structural integrity. The system 100 is designed for ease of installation, preferably requiring only the application ofthe reflective panel assembly 104 around the utility pole 102, followed by the placement and heat-shrinking of the plastic sleeve 101 .

[0036] Referring to figure 6, the reflective panels 105 effectively reflect light 107, enhancing visibility from multiple angles. The system 100 may be adapted for use on different sizes and shapes of timber utility poles 102, ensuring broad applicability across various installations.

[0037] In embodiments, the reflective panel assembly 104 itself defines the reflective panels 105, providing a structured arrangement of reflective surfaces that create the desired deterrent effect. Referring to figure 2, the reflective panel assembly 104 may be applied around the timber utility pole 102 before the plastic sleeve 101 is positioned over it. In some embodiments, the plastic sleeve 101 is transparent, allowing the reflective properties of the underlying reflective panel assembly 104 to remain fully visible once the sleeve 101 is heat-shrunk into place. This transparency ensures that the reflections generated by the reflective panel assembly 104 are not obstructed, maintaining the deterrent effect against woodpeckers. The transparent sleeve 101 may be made from clear polyethylene or another suitable transparent polymer material that retains durability and heat-shrink properties while allowing light to pass through.

[0038] In alternative embodiments, the heat-shrink plastic sleeve 101 itself is reflective, enhancing the deterrent properties of the system 100. The reflective plastic sleeve 101 may be formed from a material incorporating metallic pigments, microprismatic elements, or other light-reflective components. Referring to figure 6, the reflective surface of the sleeve 101 enables the system 100 to reflect light 107 from multiple angles, thereby increasing the likelihood of woodpeckers perceiving their own reflection when approaching the utility pole 102. The reflective sleeve 101 may be laminated or coated with reflective material during the manufacturing process, ensuring that its reflectivity remains effective over time, even when exposed to environmental conditions.

[0039] The selection between a transparent or reflective plastic sleeve 101 allows for flexibility in adapting the system 100 to different environmental conditions andwoodpecker behaviours. In embodiments, the choice of sleeve material may be based on factors such as the level of ambient light, the positioning of the utility pole 102, and the desired intensity of the reflective effect.

[0040] In embodiments, the reflective panel assembly 104 comprises hingedly connected planar boards 1 1 1 that fold around the timber utility pole 102, as shown in figure 5. Each planar board 1 1 1 defines a respective reflective panel 105, ensuring that multiple reflective surfaces are distributed around the pole 102. The hinged connection between the planar boards 1 1 1 allows the reflective panel assembly 104 to be conveniently wrapped around the utility pole 102, conforming to its shape while maintaining a stable and secure fit.

[0041] The hinged connection between the planar boards 1 1 1 may be achieved through a variety of means. In some embodiments, the planar boards 1 1 1 are joined by flexible living hinges, enabling the panels to bend and wrap around the utility pole 102 without requiring separate hinge components. In alternative embodiments, mechanical hinges may be used to connect adjacent planar boards 1 1 1 , allowing them to pivot relative to one another while maintaining their alignment around the pole 102.

[0042] By incorporating a foldable design, the reflective panel assembly 104 can be installed with minimal effort, as it can be pre-formed into a compact, flat configuration and then expanded to wrap around the pole 102 during installation. This design also facilitates storage and transportation by allowing the reflective panel assembly 104 to remain in a folded state until deployment.

[0043] Once the reflective panel assembly 104 is positioned around the pole 102, the plastic sleeve 101 is placed over it and subsequently heat-shrunk, as shown in figure 3. The heat-shrinking process secures the reflective panel assembly 104 in place, ensuring that the reflective panels 105 remain in their intended positions. The use of hingedly connected planar boards 1 1 1 provides structural stability while allowing the system 100 to be adaptable to different pole diameters and shapes.

[0044] In embodiments, the number of planar boards 1 1 1 may be varied based on the size of the pole 102 and the desired number of reflective panels 105. A greater number of planar boards 1 1 1 results in a closer fit around the pole 102, reducing gapswhile increasing the number of reflective surfaces available for deterring woodpeckers.

[0045] In embodiments, the reflective panel assembly 104 comprises five planar boards 1 1 1 , which, when folded around the timber utility pole 102, form a pentagonal arrangement, as shown in figure 5. The selection of five planar boards 1 1 1 balances the trade-off between the number and size of reflective panels 105 and the corner gaps 1 12 that naturally form around the circular cross-section of the utility pole 102. A pentagonal arrangement provides a sufficient number of reflective surfaces while maintaining structural stability and ease of installation.

[0046] The hingedly connected planar boards 1 1 1 are rectangular in a flat state, allowing the reflective panel assembly 104 to be efficiently manufactured, transported, and stored before installation. When deployed, the planar boards 1 1 1 are folded along their hinged connections to enclose the timber utility pole 102. The opposite ends of the reflective panel assembly 104 meet, forming a continuous structure around the pole 102.

[0047] To facilitate secure installation, the opposite ends of the reflective panel assembly 104 comprise connectors. These connectors may take various forms, such as interlocking tabs, mechanical fasteners, or adhesive strips. In embodiments, the connectors may be designed to provide a temporary attachment, allowing the reflective panel assembly 104 to be held in place before the application of the plastic sleeve 101. Alternatively, the connectors may create a more permanent attachment, ensuring that the reflective panel assembly 104 remains securely wrapped around the pole 102 even before the plastic sleeve 101 is heat-shrunk into place.

[0048] The use of connectors at the opposite ends of the reflective panel assembly104 simplifies installation by allowing the assembly to be positioned and secured before applying the plastic sleeve 101 . This design ensures that the reflective panels105 remain aligned and evenly distributed around the utility pole 102, maximizing the deterrent effect against woodpeckers.

[0049] In embodiments, the heat-shrink plastic sleeve 101 comprises polyethylene, a material selected for its durability, flexibility, and ability to conform tightly around thereflective panel assembly 104 when heated. Polyethylene is particularly suitable for outdoor applications due to its resistance to moisture, ultraviolet exposure, and temperature variations, ensuring the longevity of the woodpecker deterrent system 100.

[0050] Referring to figure 3, once the reflective panel assembly 104 is positioned around the timber utility pole 102, the plastic sleeve 101 is placed over it. Heat 103 is then applied to the plastic sleeve 101 , causing it to shrink and form a secure encapsulation around the reflective panel assembly 104. The heat-shrink properties of polyethylene ensure that the sleeve 101 tightly conforms to the contours of the reflective panel assembly 104, holding it in place without the need for additional fasteners.

[0051] Polyethylene also provides a protective barrier for the reflective panels 105, shielding them from environmental degradation such as dirt accumulation, precipitation, and exposure to ultraviolet light. In embodiments, the polyethylene sleeve 101 may include additives to enhance its resistance to UV degradation, preventing premature breakdown due to prolonged sun exposure.

[0052] The use of polyethylene as the heat-shrink material ensures that the woodpecker deterrent system 100 remains effective over an extended period while maintaining ease of installation. The material’s flexibility allows it to accommodate variations in pole diameters and surface textures, ensuring a secure and consistent fit across different installations.

[0053] In embodiments, the reflective panel assembly 104 is secured to the timber utility pole 102 prior to the application of the plastic sleeve 101. As shown in figure 2, the reflective panel assembly 104 is positioned around the utility pole 102, ensuring that the reflective panels 105 are properly aligned to provide maximum deterrence. Once the reflective panel assembly 104 is in place, the plastic sleeve 101 is positioned over it, encapsulating the assembly before heat is applied.

[0054] Referring to figure 3, in some embodiments, the plastic sleeve 101 is longer than the reflective panel assembly 104 along the length of the utility pole 102, thereby defining top and bottom portions 108 that extend above and below the reflective panelassembly 104. These extended portions 108 tightly grip the utility pole 102 when the plastic sleeve 101 is heat-shrunk, holding the reflective panel assembly 104 securely in place.

[0055] In some embodiments, the reflective panel assembly 104 is secured to the timber utility pole 102 solely by the portions 108 extending above and below the reflective panel assembly 104, without the use of fasteners. The heat-shrinking process ensures that the sleeve 101 contracts tightly around both the pole 102 and the reflective panel assembly 104, preventing movement and maintaining the integrity of the system. This fastening method allows for quick and tool-free installation while reducing potential damage to the utility pole 102.

[0056] In alternative embodiments, the reflective panel assembly 104 is secured using fasteners 106, as illustrated in figure 5. The fasteners 106 may be nails, screws, or other mechanical attachments that affix the reflective panel assembly 104 directly to the timber utility pole 102 before the plastic sleeve 101 is applied. This method may be beneficial in environments where additional reinforcement is needed, such as in areas subject to strong winds or frequent vibrations. The use of fasteners 106 ensures that the reflective panel assembly 104 remains in its intended position before the plastic sleeve 101 is heat-shrunk over it.

[0057] The plastic sleeve 101 is preferably applied over the reflective panel assembly 104 and is subsequently heat-shrunk into place, as shown in figure 3. Heat 103 is applied after placement of the plastic sleeve 101 , causing it to contract and form a tight, conforming layer around both the reflective panel assembly 104 and the timber utility pole 102. The heat-shrinking process ensures a secure fit while also providing environmental protection for the reflective panels 105. This process eliminates gaps between the sleeve 101 and the reflective panel assembly 104, maintaining the effectiveness of the deterrent system.

[0058] In embodiments, the reflective panels 105 are configured to reflect visible light, creating a mirrored effect that serves as a visual deterrent to woodpeckers. As shown in figure 6, incident light 107 is reflected off the reflective panels 105, making the system highly visible from multiple angles. The reflection of the surroundingenvironment and, in particular, the reflection of the woodpecker itself, creates the illusion of a rival bird occupying the territory, discouraging woodpeckers from pecking the utility pole 102.

[0059] The reflective panels 105 may be constructed from a variety of materials designed to optimize their reflectivity. In embodiments, the panels may include metallic coatings, such as aluminum or silver-based pigments, which provide a high degree of reflectivity in the visible spectrum. Microprismatic surfaces may also be used to enhance light reflection by redirecting incident light in a controlled manner, ensuring that the reflected image remains bright and clear from different viewing angles. Additionally, the use of smooth, polished surfaces on the reflective panels 105 maximizes their ability to reflect visible light effectively.

[0060] In further embodiments, the reflective panels 105 are configured to reflect ultraviolet light, providing an additional deterrent mechanism that is particularly effective for bird species, including woodpeckers. Birds have vision that extends into the ultraviolet spectrum, allowing them to perceive UV-reflective surfaces that may be invisible to the human eye. By incorporating UV-reflective materials into the reflective panels 105, the system 100 enhances its effectiveness as a deterrent.

[0061] The UV-reflective properties of the panels 105 may be achieved through the use of specialized coatings or additives integrated into the reflective material. For example, certain polymer films or coatings containing UV-reflective pigments can be applied to the reflective panels 105, ensuring that the deterrent effect remains strong even under varying lighting conditions. In embodiments, the plastic sleeve 101 may also be designed to allow UV light to pass through, preserving the reflective qualities of the underlying panels.

[0062] In embodiments, the reflective panel assembly 104 is made from a lightweight polymer material, ensuring ease of installation while maintaining durability and effective reflectivity. The use of a lightweight polymer allows the system 100 to be conveniently handled, transported, and installed on the timber utility pole 102 without the need for heavy lifting equipment or specialized tools.

[0063] The polymer material selected for the reflective panel assembly 104 may include various plastics with high reflectivity and weather-resistant properties. In embodiments, the polymer may be a thermoplastic such as polycarbonate, acrylic, or polyethylene terephthalate (PET), which offer a combination of strength, flexibility, and impact resistance. These materials provide a smooth and reflective surface for the reflective panels 105 while being lightweight enough to avoid unnecessary structural loads on the pole 102.

[0064] In further embodiments, the polymer material used for the reflective panel assembly 104 may include embedded metallic or prismatic coatings to enhance reflectivity. For example, a thin layer of aluminum or silver may be laminated onto the polymer surface to create a highly reflective finish. Alternatively, microprismatic polymer films may be integrated into the surface, increasing the brightness and directional reflection of light, as illustrated in figure 6.

[0065] The lightweight nature of the polymer also allows for flexibility in adapting the reflective panel assembly 104 to different pole diameters and shapes. The hingedly connected planar boards 1 1 1 , as shown in figure 5, can easily wrap around the timber utility pole 102 without excessive rigidity, ensuring a secure and conforming fit. Additionally, the use of a polymer material helps protect the reflective panels 105 from environmental degradation, including moisture, UV exposure, and temperature fluctuations.

[0066] By incorporating a lightweight polymer material, the reflective panel assembly 104 remains durable while ensuring that installation is efficient and practical for field applications. This construction method also minimizes costs and facilitates widespread deployment across utility poles in areas prone to woodpecker damage.

[0067] In embodiments, the plastic sleeve 101 comprises a removable outer layer 101 A that can be peeled away to expose an inner layer 101 B, as shown in figure 4. This design allows the reflective properties of the system 100 to be renewed over time without requiring the entire assembly to be replaced.

[0068] The outer layer 101 A may serves as a protective covering that shields the reflective inner layer 101 B from environmental factors such as dirt, debris, and UVdegradation. During installation, the outer layer 101 A remains intact, ensuring that the reflective surfaces beneath are preserved in optimal condition. Over time, exposure to weather conditions may reduce the effectiveness of the outermost reflective surface due to dust accumulation or minor abrasions.

[0069] To restore the reflectivity of the system 100, the outer layer 101 A can be removed by pulling apart the portions 1 10 along the defined line of weakness 109, as shown in figure 4. This peeling action reveals a fresh, undamaged inner layer 101 B with enhanced reflective properties. In embodiments, the line of weakness 109 may be formed using perforations, scoring, or a weakened adhesive bond that allows for easy separation of the outer layer 101 A when required.

[0070] The removable outer layer 101 A may be composed of a thin polymer film or a laminated coating designed to detach cleanly from the underlying reflective layer. In some embodiments, the outer layer 101 A is transparent or semi-transparent, allowing the system 100 to function effectively before it is removed. Alternatively, the outer layer 101 A may be designed to degrade over time, naturally peeling away after prolonged exposure, thereby automatically refreshing the reflectivity of the system.

[0071] By incorporating a removable outer layer 101 A, the plastic sleeve 101 extends the functional lifespan of the woodpecker deterrent system 100. This design minimizes maintenance efforts and costs, as it allows for periodic renewal of the reflective surfaces without requiring the removal or replacement of the entire system. Additionally, this feature provides a sustainable solution by reducing material waste and ensuring that the deterrent remains effective for an extended period.

[0072] Referring to figure 3, an exemplary method of use for the woodpecker deterrent system 100 involves the sequential application of the reflective panel assembly 104 and the heat-shrink plastic sleeve 101 to a timber utility pole 102. The method provides a simple and effective way to install the system 100 while ensuring proper alignment and secure attachment.

[0073] To begin installation, the reflective panel assembly 104 is positioned around a portion of the timber utility pole 102, as shown in figure 2. In embodiments, the reflective panel assembly 104 comprises hingedly connected planar boards 1 1 1 ,which are folded around the timber utility pole 102, forming a pentagonal arrangement, as illustrated in figure 5. In some embodiments, the opposite ends of the reflective panel assembly 104 are secured using connectors, fasteners 106, or adhesive means. Alternatively, the reflective panel assembly 104 may be temporarily held in place without fasteners, relying on the plastic sleeve 101 for final securement.

[0074] Once the reflective panel assembly 104 is in position, the plastic sleeve 101 is placed over or around it, ensuring that the sleeve 101 fully encloses the reflective panel assembly 104. As shown in figure 3, the plastic sleeve 101 preferably extends beyond the top and bottom edges of the reflective panel assembly 104, forming portions 108 that will contract around the timber utility pole 102 when heat is applied.

[0075] Heat 103 is then applied to the plastic sleeve 101 , causing it to shrink tightly around the reflective panel assembly 104 and the timber utility pole 102. The application of heat ensures that the plastic sleeve 101 conforms to the contours of the reflective panel assembly 104, securing it in place without the need for additional fastening means. The plastic sleeve 101 not only holds the reflective panel assembly 104 securely but also provides environmental protection for the reflective panels 105, preventing degradation due to weather exposure.

[0076] Once installed, the system 100 serves as a passive, non-harmful deterrent to woodpeckers. The reflective panels 105 create multiple mirrored surfaces that reflect both visible light and preferably also ultraviolet light, as shown in figure 6. This reflective effect is perceived by woodpeckers as the presence of a rival bird, discouraging them from approaching or pecking the utility pole 102. The deterrent effect remains active throughout varying lighting conditions, ensuring consistent protection.

[0077] In embodiments where the plastic sleeve 101 comprises a removable outer layer 101 A, as illustrated in figure 4, the outer layer 101 A can be peeled away along the line of weakness 109 after an extended period of use. This removal reveals the inner layer 101 B, which maintains the reflective properties of the system 100 without requiring a complete replacement.

[0078] Further embodiments of the system 100 involve variations in manufacturing techniques. In some embodiments, the plastic sleeve 101 comprises a laminated structure in which a heat-shrink plastic layer and a reflective material layer are bonded together under heat and pressure. This ensures that the reflective properties remain embedded within the sleeve structure, providing durability and extended lifespan. In other embodiments, the plastic sleeve 101 may be coated with a reflective material, such as metallic pigments or microprismatic coatings, which enhance its visibility and effectiveness as a deterrent.

[0079] By following this exemplary method of use, the woodpecker deterrent system 100 provides an easy-to-install, long-lasting solution for protecting timber utility poles 102 from woodpecker damage. The combination of a reflective panel assembly 104 and a heat-shrink plastic sleeve 101 ensures a secure and effective deterrent while minimizing maintenance and installation effort.

[0080] The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that specific details are not required in order to practise the invention. Thus, the foregoing descriptions of specific embodiments of the invention are presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed as obviously many modifications and variations are possible in view of the above teachings. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the following claims and their equivalents define the scope of the invention.

Claims

Claims1 . A woodpecker deterrent system for a timber utility pole, the system comprising: a reflective panel assembly configured to be applied around a portion of the timber utility pole; and a plastic sleeve heat-shrunk to encapsulate the reflective panel assembly, wherein the reflective panel assembly and the plastic sleeve shrunk around the reflective panel assembly form a plurality of reflective panels around the timber utility pole.

2. The system as claimed in claim 1 , wherein the reflective panel assembly defines the reflective panels, and the heat-shrink plastic sleeve is transparent.

3. The system as claimed in claim 1 , wherein the heat-shrink plastic sleeve is reflective.

4. The system as claimed in claim 1 , wherein the reflective panel assembly comprises hingedly connected planar boards that fold around the timber utility pole, the boards respectively defining the reflective panels.

5. The system as claimed in claim 4, wherein the reflective panel assembly comprises five planar boards.

6. The system as claimed in claim 4, wherein the hingedly connected planar boards are rectangular in a flat state and wherein opposite ends thereof meet to enclose the planar boards around the timber utility pole.

7. The system as claimed in claim 6, wherein the opposite ends comprise connectors.

8. The system as claimed in claim 1 , wherein the heat-shrink plastic sleeve comprises polyethylene.

9. The system as claimed in claim 1 , wherein the reflective panel assembly is secured to the timber utility pole prior to application of the plastic sleeve.

10. The system as claimed in claim 1 , wherein the plastic sleeve is longer than the reflective panel assembly along the timber utility pole, thereby defining portions extending above and below the reflective panel assembly.1 1. The system as claimed in claim 10, wherein the reflective panel assembly is secured to the timber utility pole solely by the portions extending above and below the reflective panel assembly without fasteners.

12. The system as claimed in claim 9, wherein the reflective panel assembly is secured using fasteners.

13. The system as claimed in claim 1 , wherein the heat-shrink plastic sleeve is applied by heating after placement over the reflective panel assembly.

14. The system as claimed in claim 1 , wherein the reflective panels are configured to reflect visible light.

15. The system as claimed in claim 1 , wherein the reflective panels are configured to reflect ultraviolet light.

16. The system as claimed in claim 1 , wherein the reflective panel assembly is made from a lightweight polymer material.

17. The system as claimed in claim 1 , wherein the plastic sleeve comprises a removable outer layer that can be peeled away to expose an inner layer.

18. The system as claimed in claim 1 , wherein the plastic sleeve comprises a laminated structure in which a heat-shrink plastic layer and a reflective material layer are bonded together under heat and pressure.

19. A method of installing a woodpecker deterrent system on a timber utility pole, the method comprising: applying a reflective panel assembly around a portion of the timber utility pole; positioning a plastic sleeve over the reflective panel assembly; and applying heat to the plastic sleeve to shrink the sleeve around the reflective panel assembly, thereby securing the reflective panel assembly to the timber utility pole and the reflective panel assembly and the plastic sleeve defining a plurality of reflective panels.

20. A timber utility pole assembly comprising: a timber utility pole; and a woodpecker deterrent system as claimed in claims 1 , the woodpecker deterrent system applied to the timber utility pole to form a plurality of reflective panels around the timber utility pole.

Citation Information

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