Squirrel-Resistant Bird Feeder with Fluted Seed Guard
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Solution Overview
Problem
Hopper-type bird feeders are ineffective in preventing access by squirrels due to their design, which allows easy access to the feed, and they are difficult to clean, potentially leading to contamination and health issues for birds.
Innovation Solution
A knockdown hopper-type bird feeder with a seed guard featuring narrow, fluted openings that allow birds with longer beaks to access seed while excluding squirrels, made from dishwasher-safe plastic materials for easy disassembly and cleaning, using interlocking components for assembly without tools, and incorporating a reinforcing system for rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hopper-type bird feeder design with open access is used, then birds can easily access feed, but squirrels can also easily access feed
Solution Approach 1:
The patent applies local quality by creating different access characteristics in different areas of the feeder. The seed guard has narrow fluted openings that selectively permit bird access while blocking squirrel access, creating localized quality differences in the access structure that differentiate between desired and undesired users.
Solution Approach 2:
The seed guard acts as an intermediary element between the feed and the animals. It mediates access by allowing birds to reach feed through its fluted openings while preventing squirrels from accessing the feed, thus serving as a selective barrier that differentiates between user types.
2Ease of operation
If traditional hopper feeder structure is used, then feed access is easy for birds, but cleaning and sanitization is difficult
Solution Approach 1:
The patent divides the feeder into separable components including the base, seed guard, and cover that can be easily detached from one another. This segmentation allows each component to be individually cleaned and sanitized, solving the cleaning difficulty while maintaining the open access design for birds.
Solution Approach 2:
The seed guard is designed as a removable component that can be taken out from the feeder assembly. This extraction capability allows the seed guard to be separately cleaned and sanitized, addressing the cleaning difficulty while maintaining its function as a bird-accessible feed protection structure.
3Adaptability or versatility
If wood material is used for feeder construction, then traditional appearance is achieved, but chewing by squirrels damages the structure
Solution Approach 1:
The patent employs composite construction by combining plastic material for the base and seed guard with metal or rigid plastic components for structural elements. This composite approach provides chewing resistance against squirrels while maintaining a traditional feeder appearance and functionality.
Solution Approach 2:
The seed guard is designed as a replaceable component made of durable material that can withstand squirrel chewing. If damaged, only the seed guard needs to be replaced rather than the entire feeder, providing cost-effective protection against chewing damage.
4Illumination intensity
If transparent plastic walls are used, then visibility is improved, but squirrels can chew through the walls
Solution Approach 1:
The patent removes the vulnerable transparent plastic walls that squirrels could chew through. Instead, it uses a seed guard with fluted openings that provides both visibility and chewing protection, extracting the problematic element while maintaining the beneficial transparency feature.
Solution Approach 2:
The seed guard provides localized protection at the feed access points where squirrels would attempt to chew, while maintaining transparency and visibility in other areas. The fluted openings create localized barriers precisely where needed without compromising overall visibility.
Data Source
AI summary
A hopper type squirrel resistant bird feeder which has a base having first and second ends and first and second sides, first and second end walls located proximate the first and second ends of the base and first and second side walls set inwardly of the first and second sides of the base to define a feed access area with the first and second side walls being spaced upwardly from the base, a feed cavity being defined by the base, end walls and side walls, and a seed guard extending over the feed access area, the seed guard having at least a portion spaced from the base and having apertures formed therein to permit access by birds to the feed access area. The bird feeder is of the knock down variety and can easily be disassembled for cleaning purposes.