Breathing mask with a superelastic seal

Details Breathing mask with a superelastic seal Breathing mask with a superelastic seal

2007-02-06

2007-02-06

Bennett, Henry (Department: 3743)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S206260, C128S206270, C128S206280, C128S206240, C128S207110, C128S207130

Reexamination Certificate

active

11082426

ABSTRACT:
A breathing mask with a mask body, which has a seal at its edge, which said seal is in contact with the user's face, wherein at least part of the seal that is in contact with the user's face is elastically deformable with spring characteristics ranging from linear to progressive and at least part of the seal that is in contact with the user's face is elastically deformable with degressive spring characteristic.

REFERENCES:
patent: 4257414 (1981-03-01), Gamm et al.
patent: 4770169 (1988-09-01), Schmoegner et al.
patent: 5003633 (1991-04-01), Itoh
patent: 5094236 (1992-03-01), Tayebi
patent: 5738094 (1998-04-01), Hoftman
patent: 6016805 (2000-01-01), Burns et al.
patent: 6712072 (2004-03-01), Lang
patent: 6945249 (2005-09-01), Griesbach et al.
patent: WO 99/43375 (1999-09-01), None

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