Bagless stick type vacuum cleaner

• US 20060162118A1
• Filed: 02/17/2006
• Published: 07/27/2006
• Est. Priority Date: 01/10/2003
• Status: Active Grant

• Current Assignee: Royal Appliance Manufacturing Company (Techtronic Industries Company Limited)
• Original Assignee: Royal Appliance Manufacturing Company (Techtronic Industries Company Limited)
• Inventors: Matousek, Robert A., Khalil, David, Wright, Michael F., Murphy, John S., Hin, Yung Leong
• Granted Patent: US 7,507,269 B2
• Time in Patent Office: Days
• US Class Current: 15/352
• CPC Class Codes: A47L 5/28 Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle A47L5/24 takes precedence
• CPC Class Codes: A47L 9/127 tube- or sleeve-shaped
• CPC Class Codes: A47L 9/165 Construction of inlets
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

An upright vacuum cleaner includes a nozzle base having a main suction opening formed in an underside thereof. A housing is hingedly connected to the nozzle base. The housing includes a dirt separation chamber and a dirt receptacle for receiving dirt and dust separated by the dirt separation chamber. A conduit connects the nozzle base to the housing. A suction source is located in one of the housing and the nozzle base. The suction source is in fluid communication with the dirt separation chamber. A generally conically shaped filter extends into the dirt separation chamber along a longitudinal axis of the dirt separation chamber.

Claims

1-28. -28. (canceled)

29. A vacuum cleaner filter, comprising:

a first end wall which blocks airflow axially through the filter;

a side wall which comprises a filter medium;

a second end wall, comprising;

an aperture which allows airflow therethrough, and

a handle extending across said aperture.

30. The filter of claim 29 wherein said handle is located in a plane of said second end wall.

31. The filter of claim 29 wherein said handle divides said aperture into two airflow openings.

32. The filter of claim 29 wherein said filter medium comprises a pleated planar material.

33. The filter of claim 29 wherein said filter side wall is generally conically shaped.

34. The filter of claim 29 wherein said side wall is mounted to said first and second end walls to form an integral structure.

35. A filter which is selectively mounted to a dirt cup of a vacuum cleaner, the filter comprising:

a planar first end wall which blocks airflow therethrough;

a side wall which comprises a filter medium;

a second end wall comprising;

a top wall,

an aperture defined in said top wall, which allows airflow therethrough,

a skirt encircling said aperture, wherein an end of said side wall is secured to said skirt.

36. The filter of claim 35 wherein said filter medium comprises a pleated planar material.

37. The filter of claim 35 wherein said side wall is generally conically shaped.

38. The filter of claim 35 wherein said second end wall further comprises a rim, said rim cooperating with an interior wall of an associated dirt cup to selectively mount said filter to the associated dirt cup.

39. The filter of claim 35 wherein said second end wall further comprises a handle.

40. The filter of claim 39 wherein said handle extends across said aperture.

41. The filter of claim 40 wherein said filter is so oriented, when in use, in relation to an associated dirt cup that said second end wall is located above said first end wall.

42. A filter which is selectively mounted to a dust cup of a vacuum cleaner comprising:

an end cap including a first channel;

a side wall which comprises a filter medium, wherein a first end of said side wall is secured in said first channel;

a frame including a second channel, wherein a second end of said-side wall is secured in said second channel;

an aperture defined in said frame for allowing airflow therethrough; and

,

a rim, said rim cooperating with an interior wall of an associated dirt cup to selectively mount said filter to the associated dirt cup.

43. The filter of claim 42 wherein said first end wall blocks airflow therethrough.

44. The filter of claim 43 wherein said first end wall has a diameter which is larger than a diameter of said first end of said side wall.

45. The filter of claim 42 wherein said filter medium comprises a pleated planar material.

46. The filter of claim 42 wherein said filter side wall is generally conically shaped.

47. The filter of claim 42 wherein said second channel is defined between an inner skirt and an outer skirt extending from a top wall of said frame.

48. The filter of claim 42 wherein said side wall has a length which is greater than a diameter of said end cap.

49. The filter of claim 42 wherein said frame further comprises a handle.

50. The filter of claim 49 wherein said handle extends across said aperture.