Leaf Vacuum Bagger With Disposable Bag Dust Containment
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Solution Overview
Problem
Conventional leaf and lawn blower/vacuum collection bags are bulky, air permeable, leading to inhalation of dust particles, frequent clogging, and cumbersome disposal processes, exposing users to airborne debris during handling and transfer.
Innovation Solution
A leaf and lawn vacuum bagger apparatus with a removably attached housing to conventional blower/vacuum devices, using a disposable trash bag to capture debris, allowing easy detachment and sealing without exposure to airborne dust, and optional retention within the housing for later disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional air permeable collection bags are used, then exhaust air can pass through the sidewall to the atmosphere, but airborne dust particles and small particles can be inhaled by the user and the pores become clogged
Solution Approach 1:
The patent introduces an intermediary mesh material with larger openings that allows exhaust air to pass through while blocking dust particles and small debris. This mesh acts as a mediator between the air permeability function and the particle filtration requirement, enabling both exhaust ventilation and user protection simultaneously.
Solution Approach 2:
The patent applies different material properties to different parts of the collection bag system. The bag uses a mesh material with larger openings in areas requiring air flow, while maintaining structural integrity to contain debris. This local differentiation of material quality optimizes both air permeability and particle containment.
2Loss of energy
If conventional air permeable collection bags are used, then exhaust air passes through the sidewall, but the pores become clogged by airborne dust particles requiring frequent cleaning
Solution Approach 1:
The patent employs disposable collection bags made of mesh material that can be easily removed and replaced when full or clogged. This disposable approach eliminates the need for frequent cleaning and maintenance of permanent bags, reducing time loss while maintaining effective exhaust air flow through the mesh structure.
3Ease of operation
If conventional air permeable collection bags are used, then the bag is bulky and awkward to handle, but the contents must be transferred by hand to larger containers which is time consuming and difficult
Solution Approach 1:
The disposable nature of the mesh collection bag allows it to be easily detached, sealed, and disposed of as a single unit when full. This eliminates the time-consuming and awkward process of manually transferring contents from a bulky permanent bag to separate containers, as the entire bag can be quickly removed and replaced.
Solution Approach 2:
The patent implements a system where the collection bag is discarded after use rather than cleaned and reused. The bag can be sealed when full and disposed of cleanly, or the contents can be emptied into appropriate containers. This approach recovers the time that would be spent on cleaning and maintenance, making the overall process more efficient.
4Ease of operation
If conventional collection bags with zippers are used, then the bag can be opened to empty contents, but the user is exposed to airborne dust particles during detaching, carrying, unzipping, and dumping
Solution Approach 1:
The disposable mesh collection bag can be sealed when full using integrated sealing mechanisms, allowing the user to detach and dispose of the entire sealed unit without opening it. This eliminates exposure to dust particles during handling, as the contents remain contained throughout the removal and disposal process. Alternatively, the bag can be designed for clean emptying with minimal user exposure.
Data Source
AI summary
A leaf and lawn vacuum bagger has a housing that is attached to the exhaust outlet of a conventional leaf and lawn blower/vacuum or mulching device, and an air permeable bag releasably connected to the exhaust outlet has a fastener closure at a bottom end. A flexible sleeve is secured at one end to the housing and the air permeable bag is releasably connected at the opposed end for capturing the vacuumed yard debris. A closure member attached to the housing is selectively closed to allow exhaust gases from the lawn blower/vacuum or mulcher device to exit through the pores of the air permeable bag to the atmosphere, and leaves and yard debris exhausted through the blower/vacuum or mulcher falls down through the interior of said air permeable bag, through said sleeve, and are collected in the housing interior, and when opened, the collected leaves and yard debris falls through the housing and into the attached disposable bag, and the attached bag is then removed and replaced as needed.