Seal construction for a surface cleaning apparatus

1. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path; and,

(c) a cyclone having a cyclone air inlet comprising a passage provided on a wall of the cyclone and a cyclone air outlet, the cyclone being removable from the surface cleaning apparatus with the cyclone inlet the cyclone being positioned in the air flow path when mounted to the surface cleaning apparatus, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the air inlet seal and the air outlet seal are concurrently sealed by movement of the cyclone in the mounting direction.

2. The surface cleaning apparatus of claim 1 wherein the mounting direction is orthogonal to one of the inlet seal and the outlet seal.

3. The surface cleaning apparatus of claim 2 wherein the other of the inlet seal and the outlet seal is at an acute angle to the mounting direction, and at least one of the cyclone and the surface cleaning apparatus is configured to direct the cyclone towards the other of the inlet seal and the outlet seal as the cyclone is mounted on the surface cleaning apparatus.

4. The surface cleaning apparatus of claim 3 wherein at least one of the cyclone and the surface cleaning apparatus comprises a cam member to direct the cyclone towards the other of the inlet seal and the outlet seal as the cyclone is mounted on the surface cleaning apparatus.

5. The surface cleaning apparatus of claim 1 wherein one of the inlet seal and the outlet seal is at an acute angle to the mounting direction and has a wider seal surface than the other of the inlet seal and the outlet seal.

6. The surface cleaning apparatus of claim 1 wherein one of the inlet seal and the outlet seal is at an acute angle to the mounting direction and has a sealing flange.

7. The surface cleaning apparatus of claim 6 wherein each of the inlet seal and the outlet seal comprises a gasket and the gasket of the one of the inlet seal and the outlet seal that is at an acute angle to the mounting direction interacts with the sealing flange.

8. The surface cleaning apparatus of claim 1 wherein the first plane is at an acute angle to a line that is perpendicular to the second plane.

9. The surface cleaning apparatus of claim 8 wherein the first plane is at an angle of 1° to 80° to the line that is perpendicular to the second plane.

10. The surface cleaning apparatus of claim 6 wherein the first plane is at an angle of 3° to 45° to the line that is perpendicular to the second plane.

11. The surface cleaning apparatus of claim 8 wherein the cyclone air inlet and the cyclone air outlet are at a common end of the cyclone.

12. The surface cleaning apparatus of claim 1 wherein the cyclone is secured to the surface cleaning apparatus by movement in a linear direction.

13. The surface cleaning apparatus of claim 1 wherein the inlet seal comprises a cyclone inlet sealing face provided on the surface cleaning apparatus and the outlet seal comprises a cyclone outlet sealing face provided on the surface cleaning apparatus and the sealing faces are mounted at a fixed position and orientation at all times when the cyclone is secured to the surface cleaning apparatus.

14. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path;

(c) a cyclone having a cyclone air inlet comprising a passage provided on a wall of the cyclone and a cyclone air outlet, the cyclone being removable from the surface cleaning apparatus with the cyclone inlet, the cyclone being positioned in the air flow path when mounted to the surface cleaning apparatus, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the inlet seal and the outlet seal are configured to be concurrently sealed by movement of the cyclone relative to the surface cleaning apparatus.

15. The surface cleaning apparatus of claim 14 wherein the mounting direction is orthogonal to one of the inlet seal and the outlet seal.

16. The surface cleaning apparatus of claim 14 wherein one of the inlet seal and the outlet seal is at an acute angle to the mounting direction, and at least one of the cyclone and the surface cleaning apparatus is configured to direct the cyclone towards the one of inlet seal and the outlet seal that is at an acute angle to the mounting direction as the cyclone is mounted on the surface cleaning apparatus.

17. The surface cleaning apparatus of claim 16 wherein at least one of the cyclone and the surface cleaning apparatus comprises a cam member to direct the cyclone towards the one of inlet seal and the outlet seal is at an acute angle to the mounting direction as the cyclone is mounted on the surface cleaning apparatus.

18. The surface cleaning apparatus of claim 14 wherein one of the inlet seal and the outlet seal is at an acute angle to the mounting direction and has a wider seal surface then the other of the inlet seal and the outlet seal.

19. The surface cleaning apparatus of claim 14 wherein one of the inlet seal and the outlet seal is at an acute angle to the mounting direction and has a sealing flange.

20. The surface cleaning apparatus of claim 19 wherein each of the inlet seal and the outlet seal comprises a gasket and the gasket of the one of the inlet seal and the outlet seal that is at an acute angle to the mounting direction interacts with the sealing flange.

21. The surface cleaning apparatus of claim 14 wherein the inlet seal is at an acute angle to a line that is perpendicular to the outlet seal.

22. The surface cleaning apparatus of claim 14 wherein the inlet seal is at an angle of 1° to 80° to a line that is perpendicular to the outlet seal.

23. The surface cleaning apparatus of claim 14 wherein the inlet seal is at an angle of 3° to 45° to a line that is perpendicular to the outlet seal.

24. The surface cleaning apparatus of claim 14 wherein the cyclone air inlet and the cyclone air outlet are at a common end of the cyclone.

25. The surface cleaning apparatus of claim 14 wherein the cyclone is secured to the surface cleaning apparatus my movement in a linear direction.

26. The surface cleaning apparatus of claim 14 wherein the inlet seal comprises a cyclone inlet sealing face provided on the surface cleaning apparatus and the outlet seal comprises a cyclone outlet sealing face provided on the surface cleaning apparatus and the sealing faces are mounted at a fixed position and orientation at all times when the cyclone is secured to the surface cleaning apparatus.

27. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path; and,

(c) a cyclone removably mounted to the surface cleaning apparatus and positioned in the air flow path, the cyclone having a cyclone air inlet and a cyclone air outlet, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the air inlet seal and the air outlet seal are concurrently sealed by movement of the cyclone in the mounting direction

wherein at least one of the cyclone and the surface cleaning apparatus comprises a cam member to direct the cyclone towards the other of the inlet seal and the outlet seal as the cyclone is mounted on the surface cleaning apparatus.

28. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path; and,

(c) a cyclone removably mounted to the surface cleaning apparatus and positioned in the air flow path, the cyclone having a cyclone air inlet and a cyclone air outlet, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the air inlet seal and the air outlet seal are concurrently sealed by movement of the cyclone in the mounting direction

wherein one of the inlet seal and the outlet seal is at an acute angle to the mounting direction and has a wider seal surface than the other of the inlet seal and the outlet seal.

29. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path; and,

(c) a cyclone removably mounted to the surface cleaning apparatus and positioned in the air flow path, the cyclone having a cyclone air inlet and a cyclone air outlet, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the air inlet seal and the air outlet seal are concurrently sealed by movement of the cyclone in the mounting direction

wherein the cyclone air inlet and the cyclone air outlet are at a common end of the cyclone.

30. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path;

(c) a cyclone removably mounted to the surface cleaning apparatus and positioned in the air flow path, the cyclone having a cyclone air inlet and a cyclone air outlet, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the inlet seal and the outlet seal are configured to be concurrently sealed by movement of the cyclone relative to the surface cleaning apparatus

wherein at least one of the cyclone and the surface cleaning apparatus comprises a cam member to direct the cyclone towards the one of inlet seal and the outlet seal is at an acute angle to the mounting direction as the cyclone is mounted on the surface cleaning apparatus.

31. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path;

(c) a cyclone removably mounted to the surface cleaning apparatus and positioned in the air flow path, the cyclone having a cyclone air inlet and a cyclone air outlet, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the inlet seal and the outlet seal are configured to be concurrently sealed by movement of the cyclone relative to the surface cleaning apparatus

wherein one of the inlet seal and the outlet seal is at an acute angle to the mounting direction and has a wider seal surface then the other of the inlet seal and the outlet seal.

32. A surface cleaning apparatus comprising:

(a) an air flow passage extending from a dirty air inlet to a clean air outlet;

(b) a suction motor positioned in the air flow path;

(c) a cyclone removably mounted to the surface cleaning apparatus and positioned in the air flow path, the cyclone having a cyclone air inlet and a cyclone air outlet, the cyclone is mountable to the surface cleaning apparatus in a mounting direction;

(d) an air inlet seal positioned in a first plane and sealing the cyclone air inlet to the airflow passage;

(e) an air outlet seal positioned in a second, non-orthogonal plane and sealing the cyclone air outlet to the airflow passage; and,

(f) the inlet seal and the outlet seal are configured to be concurrently sealed by movement of the cyclone relative to the surface cleaning apparatus

wherein the cyclone air inlet and the cyclone air outlet are at a common end of the cyclone.