Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent
1991-10-25
1993-01-26
Millin, V.
Surgery
Respiratory method or device
Including body or head supported means covering user's scalp
12820617, 12820627, 12820711, A62B 700
Patent
active
051815079
ABSTRACT:
A respirator suspension system is disclosed. A face mask for covering the mouth and nasal passages of the user has a peripheral sealing portion for establishing a seal with the user's face and filter cartridges disposed in air inlet passage on either side of the face mask. The cartridges are provided with guide fittings and guide surfaces for support and guiding of a single adjusting strap which interconnects a crown support with the face mask. In accordance with the disclosure, the crown support comprises a first precurved member extending over the top of the head of the user and a second precurved member integrally joined to the first which fits around the back of the head of the user. The elastic strap extends from a juncture portion of the two strap members on one side of the head of the user, around the front of the filter cartridge on said one side of the head of the user, around the back of the neck of the user and then around the other filter cartridge and then through an adjustable strap catch on the juncture member on the other side of the head of the user. A pull on the end of the strap effects adjustment of the respirator into a position in which it seals with the face of the user.
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North Catalog No. RP-110 date Mar. 1984 entitled Air-Purifying Respirator (especially p. 7).
Emany Venkateswara R.
Michel M. John
Snyder Frederick D.
Millin V.
Passaniti Sebastiano
WGM Safety Corp.
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