Surgery – Respiratory method or device – Face mask covering a breathing passage
Patent
1992-11-16
1994-10-11
Asher, Kimberly L.
Surgery
Respiratory method or device
Face mask covering a breathing passage
12820617, 12820628, A62B 1808, A62B 1802, A62B 1900
Patent
active
053537890
ABSTRACT:
A half mask (1) with a connection opening (13) for a filter (12), with a flexible half mask body (2) with a sealing edge (3) and with a solid filter holder (10) surrounding the half mask body. A strap (16) is connected to the filter holder. Wear comfort and tightness of fit are provided by the half mask body (2) having a supporting structure (17, 19, 21), which extends over at least a certain section and which is brought into engagement with the front sides (18, 20, 22) of the filter holder (10) pointing toward the sealing edge (3) by the strap (16), when the half mask (1) has been put on, in such a manner that the sealing edge (3) is supported.
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patent: 3757777 (1973-09-01), Kaufman
patent: 4454881 (1984-06-01), Huber et al.
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patent: 5033507 (1991-07-01), Pouchot
patent: 5062421 (1991-11-01), Burns et al.
patent: 5154168 (1992-10-01), Schlobohm
Asher Kimberly L.
Dragerwerk AG
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