Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Reexamination Certificate
2008-05-06
2011-11-15
Thanh, Loan (Department: 3764)
Surgery
Respiratory method or device
Means for removing substance from respiratory gas
C128S206120, C128S205290
Reexamination Certificate
active
08056560
ABSTRACT:
A face/dust mask constructed from differently-shaped filter media parts, each part having a different function, and each part interconnected so as to form a fitted air filter. Dual filters assist in eliminating from the intake air a substantial amount of the dust and debris encountered by riders of dirt bikes, manual bicycles, All-Terrain Vehicles, and other machines operated over unimproved, dusty terrain. By the nature of the materials and contours of the component parts, the mask fits comfortably and effectively for both adult and child users. The invention is highly resilient so as to adapt itself to the interior shape of a protective helmet or the mouthpiece section of a motorcycle helmet or similar safety helmet which is placed into position over the mask. The mask is of versatile design so as to enable a variety of embodiments with different filtering capabilities.
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Sheikh Kathryn D
Thanh Loan
LandOfFree
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