Rotatable Bird Deterrent Device with Adjustable Sail Stops
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Solution Overview
Problem
Existing bird deterrent devices, such as those with rotating arms and sails, are often impractical and unsightly, and do not fully utilize the potential versatility of rotating designs, particularly in confined spaces like boats, where easy installation and effectiveness are crucial.
Innovation Solution
A bird deterrent device comprising a post and rotatable arms with sails that rotate due to wind impingement, featuring adjustable stops to limit sail rotation and enhance wind energy harnessing, eliminating the need for electric motors and allowing for versatile installation angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing rotating bird deterrent devices with sails are used, then birds are deterred from perching, but the devices allow substantial rotation of the sail limiting effectiveness and are impractical for confined spaces
Solution Approach 1:
The device is divided into modular components including a base, multiple arms with jointed segments, and removable deterrent elements. This segmentation allows the device to be configured for different spaces and easily transported to confined areas like boats, while maintaining deterrent effectiveness through proper positioning of each segment
Solution Approach 2:
The arms are designed with rotational joints that allow dynamic adjustment of arm positions and angles. This dynamic capability enables the device to adapt to various installation environments and confined spaces while maintaining optimal deterrent orientation, unlike fixed or overly flexible existing designs
2Productivity
If sails are made freely rotatable to engage wind, then wind energy is harnessed for rotation, but the sails rotate beyond optimal angles reducing effectiveness
Solution Approach 1:
Stop mechanisms are pre-positioned on the mast to define the optimal rotational range of the sails before wind engagement occurs. This preliminary constraint ensures that when wind hits the sails, they rotate within a predetermined optimal angle range, harnessing wind energy effectively while maintaining deterrent effectiveness without excessive rotation
Solution Approach 2:
The stop mechanisms allow adjustment of the rotational range parameters of the sails. By changing the angular parameters through adjustable stops, the device optimizes the balance between wind energy capture and deterrent effectiveness, preventing sails from rotating beyond useful angles while still harnessing sufficient wind power
3Reliability
If spikes or electric shock track are installed on confined spaces, then birds are deterred, but the devices are unsightly and cannot be easily removed and replaced
Solution Approach 1:
The device uses modular, removable components that can be easily assembled and disassembled. The base, arms, and deterrent elements are separate units that can be quickly installed or removed from confined spaces without permanent attachment, unlike spikes or electric track that require fixed installation and are difficult to relocate
Solution Approach 2:
The device provides a portable alternative that replicates the deterrent function of permanent installations. Instead of installing fixed spikes or electric track, users can deploy this removable device that copies the same bird-detering effect through rotating arms and deterrent elements, offering the same reliability with ease of installation and removal
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
The device effectively rotates bird deterrent arms without power, ensuring effective wind engagement and easy installation, while maintaining aesthetic appeal and adaptability to various environments.
Implementation Method 1
A first sail can be rotatably secured to the first mast, and be configured to rotate about the length of the first mast... The sails can advantageously facilitate rotation of the bird deterrent's arms by increasing the surface area upon which wind can impinge on the sails and thereby cause rotation of the arms.
Data Source
AI summary
Rotatable bird deterrent devices are provided. Contemplated devices comprise at least one rotatable arm having a sail. In some embodiments, the sail has a length that is substantially perpendicular to the length of the arm. At least one stop can be provided, for example, via an end-piece, and the stop can act to block rotation of the sail.