DUCT CLEANING ATTACHMENT FOR A VACUUM
A duct cleaning attachment includes a hollow body having an exterior surface with a curved under-belly, one of a tapered or rounded leading end, a trailing end, and an interior surface defining an interior cavity. A coupling is positioned at the trailing end wherein the body is coupled to a hose from a vacuum source in a manner that results in air being drawn from the interior cavity by the vacuum source. The body has openings from the exterior surface to the interior surface.
Attachment for a vacuum, such as a household vacuum, that is used to clean ducts.
BACKGROUNDU.S. Pat. No. 4,792,363 describes a vent cleaning system that uses a rotating brush attached to a vacuum source.
SUMMARYThere is provided a duct cleaning attachment that comprises a hollow body having an exterior surface with a curved under-belly, one of a tapered or rounded leading end, a trailing end, and an interior surface defining an interior cavity. A coupling is positioned at the trailing end wherein the body is coupled to a vacuum source in a manner that results in air being drawn from the interior cavity by the vacuum source. The body has openings from the exterior surface to the interior surface.
According to another aspect, there is provided a duct cleaning attachment for a vacuum comprising a tapered leading end, a tapered trailing end having an attachment sized to attach to a hose of a household vacuum cleaner, and a vacuum section disposed between the tapered leading end and the tapered trailing end. The vacuum section has at least one vacuum opening. The vacuum section is larger in diameter than the tapered leading end and the tapered trailing end.
According to another aspect, there is provided a duct cleaning attachment for a vacuum as described above in combination with a household vacuum cleaner.
According to another aspect, the trailing end may be tapered, rounded, or bulbous. The body may be cylindrical with a central reduced diameter section and the openings are positioned in the reduced diameter section, and a brush comprised of a sleeve may overlie the reduced diameter section and has outwardly extending bristles. The sleeve may slide to assume a position either on a leading end side or on a trailing end side of the openings.
According to another aspect, the body may comprise a flexible hose, or may be coupled to a hose of the vacuum source.
According to another aspect, there may be an insert within the body having an outer perimeter that is smaller than the inner perimeter of the body, and having fins that extend outward from the vacuum section such that, as the body lays on a surface, the fins cause the insert to move away from the surface relative to the body.
According to another aspect, the hollow body may comprise an upper surface and a lower surface, the lower surface having a larger opening area than the upper surface, and the upper surface may not have any openings. The coupling may comprise a swivel coupling.
According to another aspect, the hollow body may comprise a positioning wheel at an angle relative to the hollow body, the positioning wheel biasing the hollow body in a first direction when moved forward, and in a second direction when moved backward.
Other aspects will be apparent from the description, drawings, and claims.
These and other features will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to be in any way limiting, wherein:
A duct cleaning attachment for a vacuum generally identified by reference numeral 10 will now be described with reference to
Referring to
As can be seen in
Trailing end 14 need not be curved or tapered. Referring to
Referring to
Referring again to
Other variations may be used for other effects. For example, it may be preferably to have more suction applied to the bottom of a duct where more dust and debris settle. Referring to
As another example, vacuum attachment 10 may also be designed specifically to clean square ducts. Referring to
Referring to
Preferably, the largest diameter of duct cleaning attachment 10, which is the diameter of vacuum section 20, is less than half the height of a diameter of household duct 26. This allows duct cleaning attachment 10 to pass under or around any dampers 30 that may be positioned in duct 26.
Advantages:Prior art duct and vent cleaners use brushes to loosen any dust or debris in a vent, to clean the entire vent. However, most dust and debris settle on the bottom of the duct or vent. The apparatus described herein allows a user to clean the majority of the dust and debris in the vents by using a much simpler and less costly design. This does not remove the need to periodically clean the entire vent, however it allows a user to delay a more costly cleaning by removing the majority of dust and debris until it becomes necessary to do so. As the apparatus is designed to attach to household vacuum cleaners, users who already own a vacuum cleaner are not required to purchase anything aside from the attachment.
In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
The following claims are to be understood to include what is specifically illustrated and described above, what is conceptually equivalent, and what can be obviously substituted. Those skilled in the art will appreciate that various adaptations and modifications of the described embodiments can be configured without departing from the scope of the claims. The illustrated embodiments have been set forth only as examples and should not be taken as limiting the invention. It is to be understood that, within the scope of the following claims, the invention may be practiced other than as specifically illustrated and described.
Claims
1. A duct cleaning attachment, comprising:
- a hollow body having an exterior surface with a curved under-belly, one of a tapered or rounded leading end, a trailing end, and an interior surface defining an interior cavity;
- a coupling positioned at the trailing end wherein the body is coupled to a vacuum source in a manner that results in air being drawn from the interior cavity by the vacuum source; and
- openings in the body from the exterior surface to the interior surface.
2. The duct cleaning attachment of claim 1, wherein the trailing end is one of tapered or rounded.
3. The duct cleaning attachment of claim 1, wherein the body is cylindrical with a central reduced diameter section and the openings are positioned in the reduced diameter section.
4. The duct cleaning apparatus of claim 3, further comprising a brush comprised of a sleeve that overlies the reduced diameter section and has outwardly extending bristles.
5. The duct cleaning apparatus of claim 4, wherein the sleeve slides to assume a position either on a leading end side or on a trailing end side of the openings.
6. The duct cleaning apparatus of claim 1, wherein the leading end is bulbous.
7. The duct cleaning apparatus of claim 1, wherein the body comprises a flexible hose.
8. The duct cleaning apparatus of claim 1, wherein the body is coupled to a hose of the vacuum source.
9. The duct cleaning apparatus of claim 1, further comprising an insert within the body having an outer perimeter that is smaller than the inner perimeter of the body, and having fins that extend outward from the vacuum section such that, as the body lays on a surface, the fins cause the insert to move away from the surface relative to the body.
10. The duct cleaning apparatus of claim 1, wherein the coupling comprises a swivel coupling.
11. The duct cleaning apparatus of claim 1, wherein the hollow body comprises a positioning wheel at an angle relative to the hollow body, the positioning wheel biasing the hollow body in a first direction when moved forward, and in a second direction when moved backward.
12. The duct cleaning apparatus of claim 1, wherein the hollow body comprises an upper surface and a lower surface, the lower surface having a larger opening area than the upper surface.
13. The duct cleaning attachment of claim 12, wherein the upper surface has no openings.
14. A duct cleaning attachment for a vacuum, comprising:
- a leading end, the leading end being one of tapered or rounded;
- a trailing end having an attachment sized to attach to a hose of a household vacuum cleaner; and
- a vacuum section disposed between the tapered leading end and the tapered trailing end, the vacuum section having at least one vacuum opening.
15. The duct cleaning attachment of claim 14, wherein the trailing end is one of tapered or rounded.
16. The duct cleaning attachment of claim 14, wherein the vacuum opening is disposed in a recess of the vacuum section.
17. The duct cleaning attachment of claim 14, wherein the leading end, the trailing end and the vacuum section are substantially spherical.
18. The duct cleaning attachment of claim 14, wherein the diameter of the vacuum section is less than half the height of a diameter of a household duct.
19. The duct cleaning attachment of claim 14, further comprising an insert within the vacuum section having an outer perimeter that is smaller than the inner perimeter of the vacuum section, and having projections that extend outward from the vacuum section such that, as the vacuum section lays on a surface, the projections cause the insert to move away from the surface relative to the vacuum section.
20. The duct cleaning attachment of claim 14, wherein the attachment sized to attach to a hose of a household vacuum cleaner comprises a swivel coupling.
21. The duct cleaning attachment of claim 14, further comprising a positioning wheel at an angle relative to the duct cleaning attachment, the positioning wheel biasing the duct cleaning attachment in a first direction when moved forward, and in a second direction when moved backward.
22. The duct cleaning attachment of claim 14, wherein the vacuum section comprises an upper surface and a lower surface, the lower surface having a larger opening area than the upper surface.
23. The duct cleaning attachment of claim 22, wherein the upper surface has no openings.
24. In combination,
- a household vacuum cleaner having a vacuum hose; and
- a duct cleaning attachment for the vacuum hose, comprising:
- a tapered leading end;
- a tapered trailing end having an attachment sized to attach to a hose of a household vacuum cleaner; and
- a vacuum section disposed between the tapered leading end and the tapered trailing end, the vacuum section having at least one vacuum opening.
Type: Application
Filed: Jul 6, 2010
Publication Date: Dec 9, 2010
Inventor: Gabe Coscarella (Edmonton)
Application Number: 12/831,136
International Classification: A47L 9/00 (20060101);