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. 07, 2023
Filed:
Apr. 18, 2019
Applicant:
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Inventors:
Assignee:
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 16/00 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (2006.01); F04D 29/42 (2006.01); F04D 29/66 (2006.01); F04D 17/16 (2006.01); F04D 25/06 (2006.01); F04D 25/08 (2006.01); G01F 1/075 (2006.01); F04D 27/00 (2006.01); A61M 16/16 (2006.01);
U.S. Cl.
CPC ...
A61M 16/0066 (2013.01); F04D 17/162 (2013.01); F04D 25/0606 (2013.01); F04D 25/082 (2013.01); F04D 29/281 (2013.01); F04D 29/30 (2013.01); F04D 29/424 (2013.01); F04D 29/4226 (2013.01); F04D 29/668 (2013.01); G01F 1/075 (2013.01); G01F 1/0755 (2013.01); A61M 16/0069 (2014.02); A61M 16/16 (2013.01); A61M 2205/42 (2013.01); F04C 2270/041 (2013.01); F04D 27/004 (2013.01);
Abstract
A lightweight impeller is provided for use in a pressurised gas source for a CPAP or other breathing assistance apparatus. The impeller can be shroudless or otherwise lightweight.