Patent · US Expired

Mask cushion and frame assembly

US6796308B2 · kind B2 · utility

320Cited by

15References

14Claims

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	Apr 17, 2002
Grant date	Sep 28, 2004
Priority date	—
Expiry date	May 3, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49863
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A respiratory mask assembly includes a rigid mask frame with a rim portion comprising a rearwardly projecting tongue and lateral flange and a cushion having a rim with a corresponding groove and a rearwardly facing shoulder. A clip in the form of a collar passes over the cushion, engaging behind the shoulder, and has securing tabs that engage recesses in the flange.

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