Mobile Clean Room Ceiling and Wall Access Sealing
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Solution Overview
Problem
Existing clean rooms lack a satisfactory airtight interface with ceilings and walls, allowing debris to escape during maintenance, despite advancements in the field, such as U.S. Pat. No. 7,448,945, indicating a need for improved mobility and containment during maintenance work.
Innovation Solution
A mobile clean room design featuring a vertically disposed frame with transparent plastic or polycarb wall panels, an aluminum floor panel, a dust collection assembly with a curtain frame and ceiling seal, and optional wall accesses, along with locking fasteners and electrical receptacles, allowing for airtight ceiling and wall interfaces and mobility via wheels, ensuring containment of debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a mobile clean room is designed with airtight ceiling and wall interfaces, then containment of debris is improved, but device complexity increases
Solution Approach 1:
The clean room is divided into modular components including a mobile base unit, ceiling access module, and wall access module that can be independently assembled and disassembled. Each module contains sealed interfaces that maintain containment while allowing flexible configuration and mobility.
Solution Approach 2:
The patent employs flexible sealing elements and gaskets at the interfaces between the mobile clean room components and the ceiling/wall structures. These flexible seals maintain airtight connections while accommodating the mobile nature of the unit, preventing debris escape without requiring rigid complex structures.
2Ease of operation
If ceiling tiles and wall material are removed for maintenance access, then ease of operation is improved, but harmful factors worsen due to debris escape
Solution Approach 1:
The mobile clean room acts as an intermediary barrier between the maintenance area and the surrounding environment. When ceiling tiles or wall materials are removed for maintenance, the mobile unit's sealed interfaces prevent debris from escaping into the surrounding area, thus mediating between the need for access and the need for containment.
Solution Approach 2:
The mobile clean room is positioned and sealed in advance before maintenance work begins. The ceiling access and wall access modules are pre-configured with sealed interfaces that are activated before any debris-generating work starts, ensuring containment is established prior to potential contamination events.
3Ease of operation
If a mobile clean room is designed with wheels for mobility, then ease of operation is improved, but stability worsens
Solution Approach 1:
The mobile clean room employs a dynamic stabilization system where wheels can be locked in place when the unit is positioned, and the structure can be configured with adjustable support legs. This allows the unit to transition between mobile and stable states as needed, maintaining both ease of movement and operational stability.
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 mobile clean room effectively maintains airtight interfaces with ceilings and walls, preventing debris from escaping during maintenance, enhancing containment and mobility, thus addressing the limitations of prior art clean rooms.
Implementation Method 1
the ceiling seal being compressed
Implementation Method 2
A vacuum apparatus in the interior space has an outlet removably affixed to the exhaust port
Data Source
AI summary
A mobile clean room has a substantially rectangular frame having an upper and lower portion and is formed of a plurality of metal tube members and transparent plastic wall panels affixed to the frame to form an end wall and front and rear walls. A floor plate is affixed to the lower portion of the frame. A plurality of locking swivel wheels is affixed to the lower portion of the frame. A ladder is mounted between the floor plate and the upper portion of the frame. A dust guard assembly is attached to the top of the frame and is movably mounted. A door is pivotally mounted to the frame. One or more of both ceiling and/or wall accesses are provided.