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1. CA3101797 - OPTICALLY TRANSPARENT FACE MASK FOR PROTECTING A USER FROM AIRBORNE PATHOGENS

Office
Canada
Application Number 3101797
Application Date
Publication Number 3101797
Publication Date 16.09.2021
Publication Kind A1
IPC
A62B 23/00
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
23Filters for breathing-protection purposes
D04H 1/4218
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
42characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
4209Inorganic fibres
4218Glass fibres
D04H 3/004
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
3Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
002Inorganic yarns or filaments
004Glass yarns or filaments
D04H 5/12
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
5Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
12Glass fibres
A41D 13/11
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
13Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
05protecting only a particular body part
11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
A62B 7/10
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
7Respiratory apparatus
10with filter elements
Applicants HERRING, RODNEY
Priority Data 3076157 CA
Title
(EN) OPTICALLY TRANSPARENT FACE MASK FOR PROTECTING A USER FROM AIRBORNE PATHOGENS
(FR) COUVRE-VISAGE OPTIQUEMENT TRANSPARENT POUR LA PROTECTION D`UN UTILISATEUR CONTRE LES PATHOGENES DANS L`AIR
Abstract
(EN)
A face mask comprising an optically transparent or optically semi-transparent
mask body
is provided. The face mask includes a periphery about an edge of the optically

transparent or optically semi-transparent mask body and straps which are
attached to the
mask body proximate to the periphery or attached to the periphery for
releasably retaining
the mask on a user's face, the mask body including: an inner layer, which is
an optically
transparent or optically semi-transparent material with a plurality of
passageways
therethrough, and which has an inner surface and an outer surface; and a
fiberglass fabric
layer which abuts the outer surface of the inner layer and which comprises
fiberglass
ribbons. The fiberglass fabric may be functionalized with a visible light
photocatalyst,
which may be low iron oxide, iron-doped titanium dioxide.


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