Adjustable respirator mask apparatus

Details Adjustable respirator mask apparatus Adjustable respirator mask apparatus

1990-10-15

1991-09-24

Burr, Edgar S.

Surgery

Respiratory method or device

Face mask covering a breathing passage

12820626, A62B 1808

Patent

active

050505947

ABSTRACT:
Apparatus setting forth a respirator mask to permit accommodation of facial irregularities and variations among individuals wherein the mask construction includes a flexible and encircling face ring including a pleated accordion ring member extendable and retractable relative to the ring in a coextensive surrounding relationship relative to the ring forwardly thereof wherein the pleated accordion ring includes multi-segmented portions formed with reinforcing encircling ring wires as well as spaced parallel reinforcing strips wherein the reinforcing strips generally of a metallic configuration stabilized repositioning of an associated forward upper shield relative to the ring wherein the upper shield is positioned overlying a lower planar shield to position a flexible pleated hose relative to individual's mouth utilizing the mask.

REFERENCES:
patent: 1960544 (1934-05-01), Malcom
patent: 2706983 (1955-04-01), Matheson et al.
patent: 3545436 (1970-12-01), Holloway
patent: 3556097 (1971-01-01), Wallace
patent: 4392490 (1983-07-01), Mattingly et al.
patent: 4440163 (1984-04-01), Spergel
patent: 4669462 (1987-06-01), Marshall

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