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US Patent 9295805 Anti-asphyxia valve assembly for respirator mask

Patent 9295805 was granted and assigned to ResMed on March, 2016 by the United States Patent and Trademark Office.

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Is a

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Patent attributes

Current Assignee

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Alison Oldenburg0

David John Worboys0

James William Charles Vandyke0

Philip Thomas Stallard0

Robin Garth Hitchcock0

Scott Alexander Howard0

Steven John Lubke0

Susan Robyn Lynch0

Date of Patent

March 29, 2016

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Patent Application Number

120833490

Date Filed

January 12, 2006

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Patent Citations Received

US Patent 12005189 Mask system having mask vent with recess and ribs

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US Patent 11701486 Patient interfaces

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US Patent D1009252 Frame for a mask assembly

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US Patent D1021068 Unit end connector

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Patent Primary Examiner

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Patent abstract

An elbow assembly for a mask assembly includes an anti-asphyxia valve (AAV) assembly that may take the form of a box-like frame work, a drop-in arrangement, or a slot-in arrangement. In each case, the AAV assembly may include a flap element which is movable so as to either direct ambient gas/air to the elbow assembly and thus the patient using the mask assembly, or to allow the passage of pressurized gas to the patient.

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