The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2013
Filed:
Dec. 12, 2006
Robert Edward Henry, Roseville, AU;
Philip Rodney Kwok, Chatswood, AU;
Karthikeyan Selvarajan, Thornleigh, AU;
Philip John Gunning, North Rocks, AU;
Christopher John Baxter, Chatswood, AU;
Robert Edward Henry, Roseville, AU;
Philip Rodney Kwok, Chatswood, AU;
Karthikeyan Selvarajan, Thornleigh, AU;
Philip John Gunning, North Rocks, AU;
Christopher John Baxter, Chatswood, AU;
ResMed Limited, Bella Vista, AU;
Abstract
A cushion for a patient interface includes two or more bladders arranged in concentric relation. Each of the bladders includes a face-contacting portion adapted to engage the patient's face, and each of the bladders is adapted to be pressurized independently from one another. At least one of the bladders is an active bladder that is pressurized to at least a sealing pressure to form a continuous seal with the patient's face in use.