Surface cleaning apparatus
A surface cleaning apparatus comprises an air treatment chamber, a pre-motor filter and a suction motor. The suction motor and the pre-motor filter are laterally spaced from the air treatment chamber. When the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, the pre-motor filter is positioned at a higher elevation than the suction motor.
1. A surface cleaning apparatus comprising:
(a) an air flow path extending from a dirty fluid inlet to a clean air outlet;
(b) a first cleaning stage comprising an air treatment chamber positioned in the air flow path, the air treatment chamber having an upper end and an opposed lower end, wherein an air treatment chamber axis extends between the upper and lower ends, wherein an air treatment chamber air inlet and an air treatment chamber air outlet are provided in the upper end;
(c) a pre-motor filter positioned in the air flow path downstream from the air treatment chamber;
(d) a second cleaning stage that is downstream from the first cleaning stage and upstream from the pre-motor filter, wherein the second cleaning stage comprises at least one cyclone; and,
(e) a suction motor positioned in the air flow path downstream from the pre-motor filter,
wherein the suction motor has a motor axis of rotation,
wherein the suction motor is laterally spaced from the air treatment chamber, and
wherein the pre-motor filter is provided in a pre-motor filter chamber and the suction motor axis of rotation extends through the pre-motor filter chamber, and
wherein, when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, and the at least one cyclone is located at an elevation above the pre-motor filter.
2. The surface cleaning apparatus of claim 1 wherein the air treatment chamber axis and the motor axis of rotation are parallel.
3. The surface cleaning apparatus of claim 2 wherein air travels through the air treatment chamber air outlet in a flow direction and the flow direction is parallel to the air treatment chamber axis.
4. The surface cleaning apparatus of claim 1 wherein, when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, a lower surface of the pre-motor filter faces the suction motor.
5. The surface cleaning apparatus of claim 1 wherein the flow path comprises a passage that extends from the air treatment chamber to the pre-motor filter wherein, when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, the passage is positioned at an elevation above the upper end of the air treatment member and the pre-motor lifter.
6. The surface cleaning apparatus of claim 1 wherein a first plane that is transverse to the air treatment chamber axis extends through the air treatment chamber and the pre-motor filter and a second plane that is transverse to the air treatment chamber axis extends through the air treatment chamber and the suction motor.
7. The surface cleaning apparatus of claim 6 wherein, when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, a lower surface of the pre-motor filter faces the suction motor.
8. The surface cleaning apparatus of claim 1 further comprising a carry handle having a hand grip portion wherein the handgrip portion overlies the pre-motor filter and the air treatment chamber.
9. The surface cleaning apparatus of claim 8 wherein a first end of the handle is secured to an upper surface of the surface cleaning apparatus at a location that overlies the air treatment chamber and a second end of the handle is secured to the upper surface of the surface cleaning apparatus at a location that overlies the pre-motor filter.
10. The surface cleaning apparatus of claim 1 wherein when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, the at least one cyclone is located at an elevation above the air treatment chamber.
11. A surface cleaning apparatus comprising:
(a) an air flow path extending from a dirty fluid inlet to a clean air outlet;
(b) a first cleaning stage comprising an air treatment chamber positioned in the air flow path, the air treatment chamber having an upper end and an opposed lower end, wherein an air treatment chamber axis extends between the upper and lower ends, wherein an air treatment chamber air inlet and an air treatment chamber air outlet are provided in the upper end;
(c) a second cleaning stage positioned in the air flow path downstream from the first cleaning stage wherein the second cleaning stage comprises at least one cyclone;
(d) a pre-motor filter positioned in the air flow path downstream from the second cleaning stage; and,
(e) a suction motor positioned in the air flow path downstream from the pre-motor filter,
wherein the suction motor has a motor axis of rotation,
wherein the suction motor is laterally spaced from the air treatment chamber, and
wherein the pre-motor filter is provided in a pre-motor filter chamber and the suction motor axis of rotation extends through the pre-motor filter chamber, and
wherein when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, the at least one cyclone is located at an elevation above the air treatment chamber and the pre-motor filter.
12. The surface cleaning apparatus of claim 11 wherein, when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, the pre-motor filter is positioned at a higher elevation than the suction motor.
13. The surface cleaning apparatus of claim 11 wherein, when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, a lower surface of the pre-motor filter faces the suction motor.
14. The surface cleaning apparatus of claim 11 wherein a first plane that is transverse to the air treatment chamber axis extends through the air treatment chamber and the pre-motor filter and a second plane that is transverse to the air treatment chamber axis extends through the air treatment chamber and the suction motor.
15. The surface cleaning apparatus of claim 11 further comprising a carry handle having a hand grip portion wherein the handgrip portion overlies the pre-motor filter and the air treatment chamber.
16. The surface cleaning apparatus of claim 15 wherein a first end of the handle is secured to an upper surface of the surface cleaning apparatus at a location that overlies the air treatment chamber and a second end of the handle is secured to the upper surface of the surface cleaning apparatus at a location that overlies the pre-motor filter.
17. The surface cleaning apparatus of claim 11 wherein the air treatment chamber axis and the motor axis of rotation are parallel.
18. The surface cleaning apparatus of claim 17 wherein air travels through the air treatment chamber air outlet is a flow direction and the flow direction is parallel to the air treatment chamber axis.
19. A surface cleaning apparatus comprising:
(a) an air flow path extending from a dirty fluid inlet to a clean air outlet;
(b) a first cleaning stage comprising an air treatment chamber positioned in the air flow path, the air treatment chamber having an upper end and an opposed lower end, wherein an air treatment chamber axis extends between the upper and lower ends, wherein an air treatment chamber air inlet and an air treatment chamber air outlet are provided in the upper end;
(c) a second cleaning stage positioned in the air flow path downstream from the first cleaning stage wherein the second cleaning stage comprises at least one cyclone having an upper end and a lower end;
(d) a pre-motor filter positioned in the air flow path downstream from the second cleaning stage; and,
(e) a suction motor positioned in the air flow path downstream from the pre-motor filter,
wherein the suction motor has a motor axis of rotation,
wherein the suction motor is laterally spaced from the air treatment chamber,
wherein the pre-motor filter is provided in a pre-motor filter chamber and the suction motor axis of rotation extends through the pre-motor filter chamber, and
wherein when the surface cleaning apparatus is positioned on a horizontal surface with the upper end of the air treatment chamber above the lower end of the air treatment chamber, the upper and lower ends of the at least one cyclone are located at an elevation above the upper end of the air treatment chamber.