Face mask with liquid and glare resistant visor

Details Face mask with liquid and glare resistant visor Face mask with liquid and glare resistant visor

1988-11-08

1991-06-04

Burr, Edgar S.

Surgery

Respiratory method or device

Face mask covering a breathing passage

12820619, 12820117, 12820115, 128857, 2 9, 2427, 2432, A62B 1808, A61F 1100, A61F 902, A41D 1300

Patent

active

050205331

ABSTRACT:
A clear plastic visor (16) is secured to a mask (12) which is removably attachable to the face of a wearer. The visor (16) is secured to the mask (12) at bond areas (48, 50) on opposite ends of the mask (12). The visor (16) is provided with a notched keyhole (20) to allow the visor (16) to conform to contours of the face of the wearer and to prevent creasing thereof. The visor (16) is generally positioned on the mask (12) so that approximately 1/3 of the visor's depth (D) covers the mask (12). A darkened strip (22) may be added to the top edge of the mask (12) to further reduce the likelihood of glare and reflections.

REFERENCES:
patent: 911476 (1909-02-01), Cheesman
patent: 2056753 (1936-10-01), Wagner
patent: 2176006 (1939-10-01), Ehrlich
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patent: 4635628 (1987-01-01), Hubbard et al.
patent: 4821340 (1989-04-01), Johnson
patent: 4825878 (1989-05-01), Kuntz et al.
patent: 4944294 (1990-07-01), Borek, Jr.

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