Folded cup-like surgical face mask and method of forming the sam

Details Folded cup-like surgical face mask and method of forming the sam Folded cup-like surgical face mask and method of forming the sam

1975-06-23

1976-07-27

Michell, Robert W.

Surgery

Truss

Pad

A61M 1600

Patent

active

039713695

ABSTRACT:
A generally cup-shaped surgical facemask and a method for folding the body portion thereof, said body portion comprising a filtration medium, the method comprising (1) providing a blank of said filtration medium; (2) establishing a longitudinal fold line on said blank; (3) establishing first, second, and third transverse lines of demarcation on said blank, said second and third lines being on opposite sides of said first line; (4) establishing first and second points on one side edge and third and fourth points on the other side edge of the blank; (5) establishing angularly disposed fold lines which connect said points with said longitudinal fold line; (6) creasing said blank along said longitudinal fold line; and (7) moving said first and second points on one of said side edges and said third and fourth points on the other side edge to new positions lying between said second and third transverse lines of demarcation.

REFERENCES:
patent: 1523884 (1925-01-01), Leduc
patent: 2634724 (1953-04-01), Burns
patent: 3613678 (1971-10-01), Mayhew

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