Face mask seal

Details Face mask seal Face mask seal

1977-04-18

1979-09-11

Recla, Henry J.

Surgery

Truss

Pad

A62B 700

Patent

active

041671856

ABSTRACT:
A resiliently flexible sealing element, conformable to the face of a wearer, in the form of a re-entrant flap is hingedly joined to and supported by a mask body in a spaced relationship thereto. The sealing element extends parametrically around the open side of the mask body and in selected locations thereabout is resiliently urged away from the mask body by web means disposed between the sealing element and the mask body. The web means provides pressure on the sealing surface of the sealing element directly at the deepest point on the user's face so as to eliminate the tendency of the sealing element or flap to pull away from the user's face at such selected locations.

REFERENCES:
patent: 2540567 (1951-02-01), Bennett
patent: 2931356 (1960-04-01), Schwarz
patent: 2939458 (1960-06-01), Lundquist
patent: 3330273 (1967-07-01), Bennett
patent: 3330274 (1967-07-01), Bennett
patent: 3343535 (1967-09-01), Lytle et al.
patent: 3545436 (1970-12-01), Holloway

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