Blower vacuum

Patent metadata

Field	Value
Publication number	US-12215717-B2
Application number	US-202418588710-A
Country	US
Kind code	B2
Filing date	Feb 27, 2024
Priority date	Mar 14, 2022
Publication date	Feb 4, 2025
Grant date	Feb 4, 2025

Abstract

A blower vacuum, the blower vacuum including a nozzle forming a first opening, a fan housing in fluid communication with the nozzle, an inlet exhaust housing rotatably coupled to the fan housing, and a debris housing. The fan housing forms a second opening. A fan assembly is positioned at the fan housing. The inlet exhaust housing includes an inlet portion and an exhaust portion. The inlet exhaust housing is rotatable to a first position forming a blower operation and a second position forming a vacuum operation. The debris housing is coupled to the exhaust portion of the inlet exhaust housing.

First claim

What is claimed is:

1. A blower vacuum, the blower vacuum comprising:
a nozzle forming a first opening;
a fan housing in fluid communication with the nozzle, the fan housing forming a second opening, wherein a fan assembly is positioned at the fan housing;
an inlet exhaust housing coupled to the fan housing, the inlet exhaust housing comprising an inlet portion and an exhaust portion, wherein the inlet exhaust housing is moveable to a first position forming a blower operation and a second position forming a vacuum operation;
a debris housing forming a plenum in fluid communication with the second opening at the fan housing; and
a separator positioned fluidly between the fan assembly and the plenum at the debris housing, wherein the separator comprises a plurality of vanes extending along a radial direction, the plurality of vanes extending from an inlet centerbody toward an outside wall surrounding the inlet centerbody.

2. The blower vacuum of claim 1 , wherein the separator comprises an exhaust centerbody positioned downstream of the inlet centerbody relative to a flow of air from the fan assembly.

3. The blower vacuum of claim 2 , wherein an outer flowpath is formed between the exhaust centerbody and the outside wall, and wherein the outer flowpath extends in fluid communication to the plenum at the debris housing.

4. The blower vacuum of claim 3 , wherein the exhaust centerbody forms an inner flowpath in fluid communication with an exhaust opening.

5. The blower vacuum of claim 3 , wherein the outer flowpath is positioned radially around the exhaust centerbody.

6. The blower vacuum of claim 5 , wherein the inner flowpath is positioned radially inward of the outer flowpath.

7. The blower vacuum of claim 6 , wherein the exhaust centerbody separates the outer flowpath and the inner flowpath.

8. The blower vacuum of claim 1 , wherein the plurality of vanes is configured to induce swirl at a flow of air from the fan assembly.

9. The blower vacuum of claim 1 , wherein the plurality of vanes is integral to the outside wall.

10. The blower vacuum of claim 1 , the debris housing comprising a removable wall, wherein the wall is a cap selectively sealing debris in the plenum at the debris housing.

11. The blower vacuum of claim 1 , wherein the separator is positioned in the debris housing, the separator comprising an exhaust centerbody positioned downstream of the inlet centerbody relative to a flow of air from the fan assembly, wherein an outer flowpath is formed between the exhaust centerbody and the outside wall, and wherein the outer flowpath extends in fluid communication to the plenum at the debris housing, and wherein the exhaust centerbody forms an inner flowpath in fluid communication with an exhaust opening at the debris housing.

12. The blower vacuum of claim 1 , wherein the separator comprises an exhaust centerbody positioned downstream of the inlet centerbody relative to a flow of air from the fan assembly, wherein the exhaust centerbody forms an inner flowpath in fluid communication with an exhaust opening, and wherein the inlet exhaust housing in the second position positions the second opening and an exhaust opening at the inlet portion in axial alignment to one another.

13. The blower vacuum of claim 12 , wherein the inlet exhaust housing in the first position positions the second opening and the first opening in axial alignment to one another.

Assignees

• Techtronic Cordless Gp

Inventors

• Eckard Jr Lance
• Holman Christopher A
• Hoffman Ronald J

Classifications

• A01G20/47 Primary

  Vacuum or blower devices · CPC title

• F04D29/4226

  Fan casings · CPC title

• F04D17/16

  for displacing without appreciable compression · CPC title

• F04D29/703 Primary

  specially for fans, e.g. fan guards · CPC title