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:
Mar. 03, 2020
Filed:
Oct. 26, 2016
Resmed Pty Ltd, Bella Vista, New South Wales, AU;
Adel Nibu, Grafrath, DE;
Johannes Nickol, Neukenroth, DE;
Achim Biener, Aufkirchen, DE;
Johann Sebastian Burz, Germaringen, DE;
Bernd Christoph Lang, Graefelfing, DE;
Saad Nasr, Sydney, AU;
Robert Eibl, Bad Toelz, DE;
Andreas Kirchberger, Miesbach, DE;
Christian Bayer, Penzberg, DE;
ResMed Pty Ltd, Bella Vista, AU;
Abstract
A respiratory apparatus for treating a patient with a respiratory disorder includes a blower configured to generate a supply of pressurized breathable gas. The blower includes a gas inlet and a gas outlet. The gas outlet is configured to deliver the generated supply of pressurized breathable gas to an outlet of the respiratory apparatus for delivery to the patient. The blower also includes an impeller configured to rotate to generate the supply of pressurized gas. The impeller has a single shroud with a plurality of blades extending from a surface of the shroud in an upstream direction relative to the direction of flow of the pressurized breathable gas. Each of the plurality of blades radiate outwards from a hub in the shroud. The hub is configured to receive a motor shaft. In addition, the outer diameter of the shroud varies between maximum portions with a maximum outer diameter and minimum portions with a minimum outer diameter.