Patent · US Expired

Breathing mask with a superelastic seal

US7171966B2 · kind B2 · utility

26Cited by

8References

13Claims

0Family size

Assignee

Drägerwerk Aktiengesellschaft · DE

Inventors

Cornelia Schrader · Wulfen, DE
Jorg Meyer · Aachen, DE
Götz Kullik · Wulfen, DE
Hans-Ullrich HANSMANN · Klein Barnitz, DE

Key dates

Filing date	Mar 17, 2005
Grant date	Feb 6, 2007
Priority date	—
Expiry date	Apr 18, 2025

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M16/0616
WIPO fieldMedical technology
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.