Spring-Biased Shroud Suet Feeder for Squirrel Resistance
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Solution Overview
Problem
Existing suet feeders are prone to mess due to melting suet when handled and are susceptible to being eaten by squirrels, as they lack effective mechanisms to prevent access by unwanted marauders.
Innovation Solution
A squirrel-resistant suet feeder design featuring a housing with spring-biased suet holders and a shroud that moves between open and closed positions, allowing access to birds while denying access to larger animals like squirrels, using a wire mesh shroud that adjusts tension and provides visual indicators for settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple open cage feeder is used, then the feeder is inexpensive and easy to manufacture, but squirrels can easily access and eat the suet contents
Solution Approach 1:
The feeder employs a dynamic shroud that can move between open and closed positions. The shroud is biased by a spring mechanism and can be actuated to close over the suet holder, preventing squirrel access while allowing bird feeding. This dynamic structure transforms a static open cage into an active protective system.
Solution Approach 2:
The shroud acts as an intermediary protective barrier between the suet holder and external threats (squirrels). It provides a physical obstruction that blocks unwanted animals from reaching the food while permitting access for intended users (birds and human refillers).
2Object-affected harmful factors
If the shroud is kept in closed position to prevent squirrel access, then squirrel resistance is improved, but birds cannot access the suet for feeding
Solution Approach 1:
The shroud is designed to be movable between closed (squirrel-resistant) and open (bird-accessible) positions. A spring mechanism provides bias toward the closed position for protection, while allowing easy opening for feeding. This dynamic positioning resolves the contradiction between security and accessibility.
Solution Approach 2:
The spring-biased shroud is pre-positioned in a closed state that anticipates and prevents squirrel access before threats occur. The system proactively maintains a protective configuration that can be temporarily opened for legitimate feeding, then automatically returns to protective mode.
3Ease of operation
If hand-gripping the opened suet package is used for insertion, then the packaging is easy to open, but the warmth of the hand melts the fat component causing mess
Solution Approach 1:
The suet holder acts as an intermediary device between the packaged suet and the feeder interior. Users can insert the packaged suet through the holder without directly gripping the package, or the holder can be opened to receive the package in a controlled manner that minimizes hand contact and heat transfer to the suet.
Solution Approach 2:
The feeder design allows the suet package to be inserted and positioned using the feeder's own structural elements (the holder mechanism) rather than requiring manual handling. The holder can be opened, the package placed inside, and then closed, reducing the need for hand-gripping and associated heat transfer.
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 feeder effectively prevents squirrel access while allowing birds to feed, reducing mess and suet loss, and can accommodate various suet package sizes, ensuring compatibility with commercially available prepackaged suet.
Implementation Method 1
a housing having a spring mounted therein
Data Source
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AI summary
A suet feeder which comprises a housing (12) having a spring (38) and a suet holder (92,94) connected to the housing (12), the suet holder (92,94) being sized to retain a prepackaged package of suet, a shroud (122) extending about the suet holder and at least a portion of the housing, a spring (38) biasing the shroud upwardly with respect to the housing and suet holder, the shroud having at least one suet access opening (124) to permit access to the suet holder with the shroud being moveable between an open position permitting access to the suet holder and a closed position wherein access to the suet holder is denied, and a cover (126) secured to the shroud. The suet feeder is designed to deter access to the suet by marauders such as squirrels.