Patent 11992613 was granted and assigned to Fisher & Paykel Healthcare on May, 2024 by the United States Patent and Trademark Office.
A breathing assistance apparatus has a pressurised gases source featuring a lightweight impeller with a plastic shaft. The impeller is shroudless. The plastic shaft is supported within the stator by a bearing structure. A resilient motor mount couples the stator and the housing and provide compliance and/or damping for the motor.