Hands-Free Pet Waste Collection Tool with Retractable Bag Release
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Solution Overview
Problem
Current pet waste collection and disposal methods are unsanitary, inefficient, and discourage owners from cleaning up after their pets, as they require direct contact with waste and can soil hands, and often damage lawns or fail to collect both solid and unsolidified waste effectively.
Innovation Solution
A hands-free waste collection and disposal device featuring a waste receptacle with a retractable bag release mechanism and a collection tool with a rake head and scraper member, allowing for waste to be collected and disposed of without bending, minimizing contact with waste, and using a conventional plastic bag that can be easily detached without hand contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a long-handled device with rigid tray or shovel is used to scoop pet waste, then the user does not need to bend down to collect waste, but the user must use a nearby object like a stick to push waste onto the tray, which soils the user's hands and forces closer proximity with waste
Solution Approach 1:
The patent introduces a reusable scoop attached to the long-handled device as an intermediary tool. The scoop has a curved surface that receives waste directly from the ground, eliminating the need to use external objects like sticks. The scoop's design allows waste to be transferred cleanly onto the tray without hand contact, solving the hand contamination problem while maintaining the benefit of not bending down.
Solution Approach 2:
The patent employs a disposable plastic bag as a covering for the tray. This disposable element prevents direct contact between the user and waste, and between the user's hands and the tray. The bag is discarded after use, eliminating cleaning requirements and preventing hand contamination, while the long-handled device provides the structural benefit of eliminating bending.
2Ease of operation
If a long-handled device with ring-shaped frame and disposable bag is used, then waste collection is facilitated, but the disposable bag must be removed from the device by hand, which soils the user's hands and creates a messy unsanitary method
Solution Approach 1:
The patent merges the disposable bag with the long-handled device by attaching the bag to the tray assembly. The bag is secured to the tray using a fastening mechanism that allows the entire assembly (device plus bag) to be handled as one unit. This integration enables the user to dispose of the bag and waste together without separate hand contact with the waste, eliminating the hand contamination problem.
Solution Approach 2:
The reusable scoop serves as an intermediary between the waste and the user's hands. The scoop's curved surface allows waste to be transferred onto the tray and into the bag without requiring the user to touch the waste directly. The long handle provides an additional intermediary arm, extending the user's reach and maintaining distance from the waste throughout the collection and disposal process.
3Ease of operation
If jaw-type scoop devices are used, then waste collection without bending is achieved, but the devices are overly complex with many parts prone to breakage and cause damage to lawns
Solution Approach 1:
The patent divides the waste collection system into separate functional components: a simple long-handled device with a rigid tray, a separate reusable scoop, and a disposable bag. This segmentation allows each component to be optimized independently - the tray provides structural support, the scoop provides gentle waste collection, and the bag provides containment. The simplicity of each individual component reduces overall system complexity and breaks the chain of potential failure points.
Solution Approach 2:
Instead of using a complex jaw-type mechanism that clamps down on waste, the patent inverts the approach by using a simple scoop that gently receives waste on its curved surface. The scoop's design allows waste to be transferred onto the tray without forceful clamping, preventing lawn damage. The simplicity of the scoop compared to complex jaws reduces device complexity while maintaining effective waste collection.
4Ease of operation
If jaw-type scoop devices are used, then waste collection is simplified, but the devices destroy lawns by grabbing and tearing up grass and soil surrounding collected waste
Solution Approach 1:
The patent uses a disposable plastic bag as a flexible containment layer that wraps around the waste. This flexible bag allows the waste to be collected and transported without rigid structures that could damage the lawn. The bag's flexibility enables it to conform to the waste's shape and be disposed of easily, while the long-handled device provides the structural support needed for waste collection without bending.
Solution Approach 2:
The disposable plastic bag serves as a single-use protective layer that prevents contact between the collection device and the lawn. The bag is discarded after use, eliminating the need to clean it and preventing any potential damage to the lawn from repeated use. The simplicity and disposability of the bag make it an effective solution that protects the environment while maintaining ease of operation.
Data Source
AI summary
A hands-free waste collection and disposal device and a method of use are disclosed herein. The disclosed device generally comprises a waste receptacle and a collection tool. The waste receptacle includes an elongated handle, a waste receiving member attached to a second end of the elongated handle, and retractable members connected to the waste receiving member, wherein the retractable members are movable between a bag-supporting position and a bag-release position. The collection tool includes an elongated handle, a rake head connected to a second end of the elongated handle, and a scraper member attached to a rear face of the rake head.