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Airtight interlock design

Airtight interlock design

Airtight interlock design

(OP)
Can anyone offer some advice on airtight interlock designs?  The device I'm working on has two shelled parts that are snapped together to form a case and it needs to be airtight.  It is a breathing device so the pressures are low (< 1 psi).  I've attached a PDF showing the design.

Thanks,  

RE: Airtight interlock design

I'm not seeing a snap.
 

Mike Halloran
Pembroke Pines, FL, USA

RE: Airtight interlock design

(OP)
The snaps will be separate from the seal.  I'm just showing the sealing features in the attached files.

RE: Airtight interlock design

The groove allows solvent bonding.

Is the joint everywhere convex, or have you some other means to force the sealing surfaces together?

 

Mike Halloran
Pembroke Pines, FL, USA

RE: Airtight interlock design

(OP)
Should have mentioned that it needs to be opened for cleaning, so any type of permanent bonding is not appropriate.

RE: Airtight interlock design

If the linear dimensions are in mm, it seems a little delicate for repeated disassembly.  How does the user disengage the snaps and/or jack the halves apart without damage?

 

Mike Halloran
Pembroke Pines, FL, USA

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