Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1997-10-09
1999-04-20
Sells, James
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156290, 1563084, 264445, B32B 3116
Patent
active
058955372
ABSTRACT:
A sonic welded gas mask and the process for fabricating the mask. The facepiece of the mask provides apertures, appropriately shaped and dimensioned to receive gas mask components for sealing therein. The elastomeric material of the facepiece of the mask is captured between sealing elements and secured therebetween by a sonic welding process. The method of fabrication described attaches and positively seals the elements into the mask. Direct voice communication and alternatively, electronic voice communication may be provided between a user and the external environment.
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Sells James
Ware Paul H.
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