Smoke mask apparatus

Claim 2

A smoke mask comprising a face piece provided with means to form a substantially airtight cover over the eyes and nose of a wearer, leaving the mouth exposed, at least a portion of said face piece to cover said eyes being transparent; head harness means for holding said face piece in position over said eyes and nose; a filtration cartridge holder attached to and depending below said face piece adapted to be front of said mouth; resilient means attaching said holder to said face piece, said resilient means permitting said holder to be moved toward and away from said mouth; a removable air filtration cartridge held in said holder; mouthpiece means adapted to be held in the mouth of a wearer and a conduit operatively connected between said cartridge and said mouthpiece means.

Claim 3

A smoke mask comprising first resilient frame means adapted to encircle a wearer's eyes and nose in sealing engagement with the skin, leaving the mouth exposed; a transparent eye shield held in said frame and making a substantially air-tight joint therewith; head harness means attached to said frame for holding said frame in operative position; second frame means adapted to receive and hold an air filtration cartridge; hinge means interconnecting said first and second frame means, said hinge means positioning said second frame means in front of, and permitting said second frame means to be moved toward and away from, said wearer's mouth; a removable air filtration cartridge held by said second frame, said cartridge including means adapted to remove noxious gases and smoke particles from an air stream passing therethrough; a mouthpiece including means adapted to be held in the mouth of said wearer; and an air-flow conduit operatively connected between said mouthpiece and said cartridge, permitting said wearer to inhale and exhale through said cartridge.

Claim 4

A smoke mask comprising first resilient frame means adapted to encircle a wearer's eyes and nose in sealing engagement with the skin, leaving the mouth exposed; a transparent eye shield held in said frame and making a substantially air-tight joint therewith; head harness means attached to said frame for holding said frame in operative position; second frame means adapted to receive and hold an air filtration cartridge; hinge means interconnecting said first and second frame means, said hinge means positioning said second frame means in front of, and permitting said second frame means to be moved toward and away from, said wearer's mouth; a removable air filtration cartridge held by said second frame, said cartridge including means adapted to remove noxious gases and smoke particles from an air stream passing therethrough; a mouthpiece including means adapted to be held in the mouth of said wearer; and an air-flow conduit operatively connected between said mouthpiece and said cartridge, permitting said wearer to inhale and exhale through said cartridge.

Claim 5

The mask of claim 2 wherein said first and second frame means are integrally formed as a unitary structure of a resilient material, a thin strip of said material joining said frame means and acting as a hinge to permit relative back-and-forth movement of said second frame means.

Claim 6

The mask of claim 2 which is provided with a resilient tab on each lateral edge of said mask at approximate eye-level and an outwardly extending projection on the front face of said eyepiece, said tabs and projection being adapted to support the frame of eyeglasses in operative position for use by the wearer of said mask.

Claim 7

The mask of claim 2 in which said second frame means has a generally rectangular configuration including opposed top and bottom faces, opposed end faces, a front face provided with openings for air flow into said filtration cartridge, and a substantially open rear face permitting said cartridge to be inserted and removed from said frame.

Claim 8

The mask of claim 5 in which said rear face is provided with an inwardly extending peripheral lip for holding said cartridge in position.