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US 2020/0049165 A1Published application
Low-noise blower
AssigneeVyaire Medical Capital LLC
InventorSteven DUQUETTE
Life of this patent
Estimating the term…
Abstract
A low-noise blower that can provide a smooth transition of fluid flow and reduce audible noise, which can disrupt a patient's rest and cause fatigue to patients and caregivers, the blower having an impeller and a housing, the impeller with an impeller plate and a plurality of blades each attached to the impeller plate, and the housing with an impeller cavity and a collector, where a slot with inclined surfaces extends between the impeller cavity and the collector.
Claims20
A blower comprising:
- an impeller having an impeller plate and a plurality of blades attached to the impeller plate, wherein the impeller plate comprises a top surface, and the plurality of blades comprise a top surface;
- and
- a housing comprising a top housing portion and a bottom housing portion, the top housing portion having a slot upper edge with an inclined surface, and the bottom housing portion having a slot lower edge with an inclined surface;
- wherein the top and bottom housing portions are coupled together to form an impeller cavity, a collector surrounding the impeller cavity, and a slot extending between the impeller cavity and the collector such that a distance between the inclined surfaces of the slot upper edge and the slot lower edge increases from the impeller cavity to the collector;
- and
- wherein the impeller is positioned within the cavity with the top surface of the plurality of blades aligned the slot upper edge, and the top surface of the impeller plate aligned with the slot lower edge.
3 more elements
A blower comprising:
- an impeller having an impeller plate and a plurality of blades attached to the impeller plate, wherein the impeller plate comprises a top surface, and the plurality of blades comprise a top surface;
- a housing comprising a top housing portion and a bottom housing portion, the top housing portion having a slot upper portion, and the bottom housing portion having a slot lower portion;
- and
- an impeller cavity, a collector surrounding the impeller cavity, and a slot formed between the top and bottom housing portions, wherein the slot has a first end adjacent the impeller cavity, and a second end adjacent the collector, and the slot tapers away from the first end to the second end;
- wherein the impeller is positioned within the cavity with the top surface of the plurality of blades aligned a lowermost surface of a portion of the slot formed by the top housing portion, and the top surface of the impeller plate aligned an uppermost surface of a portion of the slot formed by the bottom housing portion.
2 more elements
Dependencies are inferred from the claim text.