Patent · US Expired

Mask cushion and frame assembly

US6412487B1 · kind B1 · utility

382Cited by

9References

5Claims

0Family size

Assignee

ResMed Corp. · AU

Inventors

Michael Kassipillai Gunaratnam · Chatswood, AU
Gregory Scott Smart · Sydney, AU
Philip Rodney Kwok · Chatswood, AU

Key dates

Filing date	Feb 9, 2000
Grant date	Jul 2, 2002
Priority date	—
Expiry date	Feb 9, 2020

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2210/0618
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A respiratory mask assembly includes a rigid mask frame (160) with a rim portion comprising a rearwardly projecting tongue (620) and lateral flange (640) and a cushion (180) having a rim with a corresponding groove (740) and a rearwardly facing shoulder (720). A clip in the form of a collar (800) passes over the cushion, engaging behind the shoulder (720), and has securing tabs (820) which engage recesses (660) in the flange (640).

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