Hot air feed wheel
US-2018202454-A1 · Jul 19, 2018 · US
Backpack blower
US2022010798A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022010798-A1 |
| Application number | US-202117486343-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 27, 2021 |
| Priority date | Oct 10, 2017 |
| Publication date | Jan 13, 2022 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A blower including a housing at least partially defining a chamber, a motor including a drive shaft defining a rotational axis, and an impeller drive by the motor to generate an air flow in the chamber. The blower also includes a coupler operably connected between the drive shaft and the impeller to transmit torque therebetween, the coupler being connected to one of the drive shaft and the impeller and including a plurality of ribs configured to engage the other of the drive shaft and the impeller, each rib defining a rib axis transverse to the rotational axis, each rib axis being arranged tangent to a circle centered on the rotational axis.
First claim
Opening claim text (preview).
1 . A blower comprising: a housing at least partially defining a chamber; a motor including a drive shaft defining a rotational axis; an impeller driven by the motor to generate an air flow in the chamber; and a coupler operably connected between the drive shaft and the impeller to transmit torque therebetween, the coupler being connected to one of the drive shaft and the impeller and including a plurality of ribs configured to engage the other of the drive shaft and the impeller, each rib defining a rib axis transverse to the rotational axis, each rib axis being arranged tangent to a circle centered on the rotational axis. 2 . The blower of claim 1 , wherein the other of the drive shaft and the impeller defines a plurality of slots, each slot being configured to receive an associated rib. 3 . The blower of claim 1 , wherein the coupler further includes a central hub and a semi-spherical hood extending from the hub, each rib extending between the hub and the hood. 4 . The blower of claim 3 , wherein a portion of the impeller extends into the hood. 5 . The blower of claim 4 , wherein the portion of the impeller defines a plurality of slots, each slot being configured to receive an associated rib. 6 . The blower of claim 4 , wherein the portion of the impeller defines an aperture, and wherein the hub extends into the aperture. 7 . The blower of claim 3 , wherein the hub defines a threaded aperture connected to the drive shaft.
Assignees
Inventors
Classifications
Mounting or removal of fans · CPC title
Bladed diffusers · CPC title
Double entry casings · CPC title
- A01G20/47Primary
Vacuum or blower devices · CPC title
with volutes extending mainly in axial or radially inward direction · CPC title
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Frequently asked questions
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- What does patent US2022010798A1 cover?
- A blower including a housing at least partially defining a chamber, a motor including a drive shaft defining a rotational axis, and an impeller drive by the motor to generate an air flow in the chamber. The blower also includes a coupler operably connected between the drive shaft and the impeller to transmit torque therebetween, the coupler being connected to one of the drive shaft and the impe…
- Who is the assignee on this patent?
- Techtronic Cordless Gp
- What technology area does this patent fall under?
- Primary CPC classification A01G20/47. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Jan 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).