Handheld surface cleaning apparatus

Patent metadata

Field	Value
Publication number	US-10506904-B2
Application number	US-201715642863-A
Country	US
Kind code	B2
Filing date	Jul 6, 2017
Priority date	Jul 6, 2017
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

A hand vacuum cleaner has an air flow path extending from a dirty air inlet to a clean air outlet. An air treatment member is positioned in the air flow path. A removable pre-motor filter assembly is positioned downstream of the air treatment member and upstream of a suction motor, the pre-motor filter assembly comprising a pre-motor filter and a filter support member, the filter support member having an outlet conduit wherein a terminal end of the outlet conduit extends at a first angle to a direction of air flow through the outlet conduit.

First claim

The invention claimed is:

1. A surface cleaning apparatus comprising:
(a) an air flow path extending from a dirty air inlet to a clean air outlet;
(b) an air treatment member positioned in the air flow path; and
(c) a removable pre-motor filter assembly positioned downstream of the air treatment member and upstream of a suction motor, the pre-motor filter assembly comprising a pre-motor filter and a filter support member, the filter support member having an outlet conduit which comprises a terminal end that terminates at an outlet port, wherein the terminal end comprises a linear extension of the outlet conduit, and wherein the outlet port of the terminal end extends at a first angle to a direction of air flow through the outlet conduit.

2. The surface cleaning apparatus of claim 1 wherein the pre-motor filter comprises a generally cylindrical filter having a hollow interior positioned about a body portion of the filter support member having an internal filter conduit, wherein the outlet conduit is in air flow communication with the hollow interior via the internal filter conduit.

3. The surface cleaning apparatus of claim 2 wherein the outlet conduit is aligned with the hollow interior.

4. The surface cleaning apparatus of claim 3 wherein the body portion of the filter support member includes a porous portion located in the hollow interior and positioned between a downstream surface of the pre-motor filter and the internal filter conduit.

5. The surface cleaning apparatus of claim 2 wherein the hollow interior comprises a longitudinally extending passage having an outlet end from which the outlet conduit extends away and an opposed end wherein the opposed end is sealed.

6. The surface cleaning apparatus of claim 5 wherein the opposed end is sealed by a sealing member that extends into the hollow interior, the sealing member having a solid wall extending inwardly and located between a downstream surface of the pre-motor filter and the passage.

7. The surface cleaning apparatus of claim 1 wherein the filter support member has a body portion having an internal filter conduit that extends into a hollow interior of the pre-motor filter, the body portion having a solid wall extending inwardly and located between a downstream surface of the pre-motor filter and the internal filter conduit.

8. The surface cleaning apparatus of claim 7 wherein the body portion of the filter support member includes a porous portion located in the hollow interior and positioned between a downstream surface of the pre-motor filter and the internal filter conduit and is upstream of the outlet conduit.

9. The surface cleaning apparatus of claim 8 wherein the internal filter conduit comprises a longitudinally extending passage having an outlet end from which the outlet conduit extends away and a second end wherein the second end is sealed.

10. The surface cleaning apparatus of claim 9 wherein the second end is sealed by a sealing member that extends into the hollow interior, the sealing member having a solid wall extending inwardly and located between a downstream surface of the pre-motor filter and the internal filter conduit.

11. The surface cleaning apparatus of claim 10 wherein the sealing member and the body portion define a continuous member extending through the hollow interior.

12. The surface cleaning apparatus of claim 1 further comprising a treated air conduit extending from the outlet conduit towards the suction motor wherein an inlet end of the treated air conduit also extends at about the first angle to a direction of air flow through the outlet conduit.

13. The surface cleaning apparatus of claim 1 further comprising a treated air conduit extending from the outlet conduit towards the suction motor wherein an inlet end of the treated air conduit also extends at a second angle to a direction of air flow through the outlet conduit and the terminal end of the outlet conduit abuts the inlet end of the treated air conduit when the filter assembly is positioned in the air flow path.

14. The surface cleaning apparatus of claim 13 wherein the first and second angles are about the same.

15. The surface cleaning apparatus of claim 13 further comprising a gasket provided at an interface of the terminal end of the outlet conduit and the inlet end of the treated air conduit.

16. The surface cleaning apparatus of claim 1 wherein the filter assembly is removable in a filter assembly removal direction that is at an angle to the direction of air flow through the outlet conduit.

17. The surface cleaning apparatus of claim 16 wherein the filter assembly is removable through an openable door and a side of the terminal end that is closest to the openable door extends further in the direction of air flow though the outlet conduit than an opposed side of the terminal end that is further from the openable door.

18. The surface cleaning apparatus of claim 17 further comprising a treated air conduit extending from the outlet towards the suction motor wherein a side of the inlet end of the treated air conduit that is furthest from the openable door extends further in the direction of air flow though the outlet conduit than an opposed side of the inlet end that is closest to the openable door.

Assignees

• Omachron Intellectual Property Inc

Inventors

• Conrad Wayne Ernest
• Conrad Nina
• Petersen Dave

Classifications

• A47L5/24 Primary

  Hand-supported suction cleaners · CPC title

• A47L9/1608

  Cyclonic chamber constructions · CPC title

• A47L9/127 Primary

  tube- or sleeve-shaped · CPC title

• B01D46/0004

  Details of removable closures, lids, caps or filter heads · CPC title

• A47L9/2884

  Details of arrangements of batteries or their installation · CPC title