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US 2022/0282733 A1Published application
Regenerative blower
AssigneeFisher & Paykel Healthcare Limited
InventorsDonald Roy Kuriger, Johannes Nicolaas Bothma
Life of this patent
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Abstract
In accordance with one aspect the present invention may comprise a regenerative blower comprising: a housing, a first port and second port in the housing, an airflow channel extending between the first and second ports for airflow between the ports, an impeller rotatable in an impeller channel to promote airflow in the airflow channel from the first port to the second port, a motor to drive the impeller, and an interrupter between the first and second ports to limit airflow from the second port to the first port.
Claims18
(canceled)
A regenerative blower comprising:
- a housing comprising a first port and a second port;
- an airflow channel extending between the first port and the second port;
- an impeller rotatable in an impeller channel, wherein the impeller promotes airflow in the airflow channel from the first port to the second port;
- a motor to drive the impeller;
- an interrupter between the first and second ports to limit airflow from the second port to the first port;
- and
- wherein the first port comprises a conduit that extends from the airflow channel, the second port comprises a conduit that extends from the airflow channel, and the first port forms a spiral with the airflow channel.
4 more elements
Dependencies are inferred from the claim text.