US 12,029,849 B2
Blower for breathing apparatus
Donald Roy Kuriger, Auckland (NZ); and Johannes Nicolaas Bothma, Otorohanga (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Jul. 6, 2021, as Appl. No. 17/368,678.
Application 17/368,678 is a continuation of application No. 16/097,209, granted, now 11,097,076, previously published as PCT/IB2017/052459, filed on Apr. 28, 2017.
Claims priority of provisional application 62/329,450, filed on Apr. 29, 2016.
Prior Publication US 2021/0330909 A1, Oct. 28, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/00 (2006.01); F04D 25/06 (2006.01); F04D 29/053 (2006.01); F04D 29/059 (2006.01); F04D 29/42 (2006.01); F04D 29/58 (2006.01)
CPC A61M 16/0066 (2013.01) [F04D 25/0606 (2013.01); F04D 29/053 (2013.01); F04D 29/059 (2013.01); F04D 29/4253 (2013.01); F04D 29/5806 (2013.01); A61M 2205/3606 (2013.01); A61M 2205/362 (2013.01); A61M 2205/42 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A blower for a breathing apparatus comprising:
a housing comprising:
a bottom support forming a bottom portion of the housing, and
a top support forming a top portion of the housing;
a motor core comprising a stator and a rotor;
an impeller coupled to the motor core via a rotatable shaft;
wherein a first end of the rotatable shaft is rotatably coupled to the top support via a first stub axle and first bearing arrangement and a second end of the rotatable shaft is rotatably coupled to the bottom support via a second stub axle and second bearing arrangement;
wherein the rotatable shaft is at least partially hollow; and
wherein the first stub axle extends from the top support and the second stub axle extends from the bottom support such that the first stub axle and the second stub axle extends into the rotatable shaft.