초록 ▼

A vacuum cleaner bag filter with one or more filter walls forming a generally air permeable enclosure having a bag opening through it, and a flange attached to the one or more filter walls to cover the bag opening. The filter walls have a working surface area through which air can pass during use, a

A vacuum cleaner bag filter with one or more filter walls forming a generally air permeable enclosure having a bag opening through it, and a flange attached to the one or more filter walls to cover the bag opening. The filter walls have a working surface area through which air can pass during use, and the flange is a relatively rigid structure having an air inlet passing into the air permeable enclosure. One or more deodorizing sheets are attached to an inner surface of the one or more filter walls. The deodorizing sheets include a first sheet layer, and sodium bicarbonate particles operatively associated with the first sheet layer. The deodorizing sheets may cover less than about 30% of the working surface area, a single deodorizing sheet may be provided, and the deodorizing sheets may be attached to the filter walls by an air impermeable adhesive that covers at least about 5% of the surface area of the deodorizing sheets. Also provided is a vacuum cleaner filter having a filter and a deodorizing sheet attached thereto by an air-impermeable adhesive.

대표청구항 ▼

We claim: 1. A vacuum cleaner bag filter comprising: one or more filter walls forming a generally air permeable enclosure having a bag opening therethrough, the one or more filter walls having a working surface area through which air can pass during use; a flange attached to the one or more filter

We claim: 1. A vacuum cleaner bag filter comprising: one or more filter walls forming a generally air permeable enclosure having a bag opening therethrough, the one or more filter walls having a working surface area through which air can pass during use; a flange attached to the one or more filter walls to cover the bag opening, the flange comprising a relatively rigid structure having an air inlet passing into the air permeable enclosure; a deodorizing sheet attached to an inner surface of the one or more filter walls, the deodorizing sheet comprising: a first sheet layer, and a plurality of sodium bicarbonate particles operatively associated with the first sheet layer; and wherein the deodorizing sheet covers less than about 30% of the working surface area. 2. The vacuum cleaner bag filter of claim 1, wherein the deodorizing sheet further comprises a second sheet layer, and the plurality of sodium bicarbonate particles are generally deposited between the first sheet layer and the second sheet layer. 3. The vacuum cleaner bag filter of claim 2, wherein the sodium bicarbonate particles are adhered to at least the first sheet layer by a hot melt adhesive. 4. The vacuum cleaner bag filter of claim 2, wherein the sodium bicarbonate particles are non-uniformly distributed throughout the thickness of the deodorizing sheet. 5. The vacuum cleaner bag filter of claim 2, wherein the sodium bicarbonate particles are uniformly distributed throughout the thickness of the deodorizing sheet. 6. The vacuum cleaner bag filter of claim 2, wherein the first sheet comprises a non-woven sheet, and the second sheet comprises a scrim layer. 7. The vacuum cleaner bag filter of claim 6, wherein the sodium bicarbonate particles and second sheet layer are adhered to the first sheet layer by a hot melt adhesive. 8. The vacuum cleaner bag filter of claim 1, wherein the deodorizing sheet is positioned on the one or more filter walls at a location opposite the air inlet, such that air entering the air inlet impinges upon the deodorizing sheet. 9. The vacuum cleaner bag filter of claim 8, the deodorizing sheet further comprises a second sheet layer, the second sheet layer comprising an anti-penetration barrier to help prevent incoming objects from penetrating the one or more filter walls. 10. The vacuum cleaner bag filter of claim 1, wherein the deodorizing sheet covers less than about 25% of the working surface area. 11. The vacuum cleaner bag filter of claim 1, wherein the deodorizing sheet covers about 4% to about 15% of the working surface area. 12. The vacuum cleaner bag filter of claim 1, wherein the deodorizing sheet is attached to the one or more filter walls by an air-impervious adhesive that covers at least about 5% of the surface area of the deodorizing sheet. 13. The vacuum cleaner bag filter of claim 1, further comprising an air restricting layer attached to the outer surface of the one or more filter walls and overlying the deodorizing sheet. 14. The vacuum cleaner bag filter of claim 13, wherein the air restricting layer comprises a blocking emulsion printed on the outer surface of the one or more filter walls. 15. The vacuum cleaner bag filter of claim 13, wherein the air restricting layer reduces airflow through the deodorant sheet by about 30% to about 90%. 16. The vacuum cleaner bag filter of claim 13, wherein the air restricting layer reduces airflow through the deodorant sheet by about 60-70%. 17. The vacuum cleaner bag filter of claim 1, wherein the deodorizing sheet comprises a single deodorizing sheet. 18. The vacuum cleaner bag filter of claim 1, wherein the deodorizing sheet comprises a plurality of deodorizing sheets. 19. A vacuum cleaner bag filter comprising: one or more filter walls forming a generally air permeable enclosure having a bag opening therethrough, the one or more filter walls having a working surface area through which air can pass during use; a flange attached to the one or more filter walls to cover the bag opening, the flange comprising a relatively rigid structure having an air inlet passing into the air permeable enclosure; a at least one deodorizing sheet attached to an inner surface of the one or more filter walls, and positioned on the one or more filter walls at a location opposite the air inlet, such that air entering the air inlet impinges upon the deodorizing sheet, the deodorizing sheet comprising: a first sheet layer, and a plurality of sodium bicarbonate particles operatively associated with the first sheet layer. 20. The vacuum cleaner bag filter of claim 19, wherein the deodorizing sheet further comprises a second sheet layer, and the plurality of sodium bicarbonate particles are generally deposited between the first sheet layer and the second sheet layer. 21. The vacuum cleaner bag filter of claim 20, wherein the sodium bicarbonate particles are adhered to at least the first sheet layer by a hot melt adhesive. 22. The vacuum cleaner bag filter of claim 20, wherein the sodium bicarbonate particles are non-uniformly distributed throughout the thickness of the deodorizing sheet. 23. The vacuum cleaner bag filter of claim 20, wherein the sodium bicarbonate particles are uniformly distributed throughout the thickness of the deodorizing sheet. 24. The vacuum cleaner bag filter of claim 20, wherein the first sheet comprises a non-woven sheet, and the second sheet comprises a scrim layer. 25. The vacuum cleaner bag filter of claim 24, wherein the sodium bicarbonate particles and second sheet layer are adhered to the first sheet layer by a hot melt adhesive. 26. The vacuum cleaner bag filter of claim 19, the deodorizing sheet further comprises a second sheet layer, the second sheet layer comprising an anti-penetration barrier to help prevent incoming objects from penetrating the one or more filter walls. 27. The vacuum cleaner bag filter of claim 19, wherein the deodorizing sheet covers less than about 30% of the working surface area. 28. The vacuum cleaner bag filter of claim 19, wherein the deodorizing sheet covers less than about 25% of the working surface area. 29. The vacuum cleaner bag filter of claim 19, wherein the deodorizing sheet covers about 4% to about 15% of the working surface area. 30. The vacuum cleaner bag filter of claim 19, wherein the deodorizing sheet is attached to the one or more filter walls by an air-impervious adhesive that covers at least about 5% of the surface area of the deodorizing sheet. 31. The vacuum cleaner bag filter of claim 19, further comprising an air restricting layer attached to the outer surface of the one or more filter walls and overlying the deodorizing sheet. 32. The vacuum cleaner bag filter of claim 31, wherein the air restricting layer comprises a blocking emulsion printed on the outer surface of the one or more filter walls. 33. The vacuum cleaner bag filter of claim 31, wherein the air restricting layer reduces airflow through the deodorant sheet by about 30% to about 90%. 34. The vacuum cleaner bag filter of claim 31, wherein the air restricting layer reduces airflow through the deodorant sheet by about 60-70%. 35. A vacuum cleaner bag filter comprising: one or more filter walls forming a generally air permeable enclosure having a bag opening therethrough, the one or more filter walls having a working surface area through which air can pass during use; a flange attached to the one or more filter walls to cover the bag opening, the flange comprising a relatively rigid structure having an air inlet passing into the air permeable enclosure; one or more deodorizing sheets attached to an inner surface of the one or more filter walls, the one or more deodorizing sheets each comprising: a first sheet layer, and a plurality of sodium bicarbonate particles operatively associated with the first sheet layer; and wherein the one or more deodorizing sheets are attached to the one or more filter walls by an air impermeable adhesive that covers at least about 5% of the total surface area of the one or more deodorizing sheets. 36. The vacuum cleaner bag filter of claim 35, wherein the one or more deodorizing sheets each further comprises a second sheet layer, and the plurality of sodium bicarbonate particles are generally deposited between the first sheet layer and the second sheet layer. 37. The vacuum cleaner bag filter of claim 36, wherein the sodium bicarbonate particles are adhered to at least the first sheet layer by a hot melt adhesive. 38. The vacuum cleaner bag filter of claim 36, wherein the sodium bicarbonate particles are non-uniformly distributed throughout the thicknesses of the one or more deodorizing sheets. 39. The vacuum cleaner bag filter of claim 36, wherein the sodium bicarbonate particles are uniformly distributed throughout the thicknesses of the one or more deodorizing sheets. 40. The vacuum cleaner bag filter of claim 36, wherein the first sheet comprises a non-woven sheet, and the second sheet comprises a scrim layer. 41. The vacuum cleaner bag filter of claim 40, wherein the sodium bicarbonate particles and second sheet layer are adhered to the first sheet layer by a hot melt adhesive. 42. The vacuum cleaner bag filter of claim 35, wherein at least one of the one or more deodorizing sheets is positioned on the one or more filter walls at a location opposite the air inlet, such that air entering the air inlet impinges upon the at least one deodorizing sheet. 43. The vacuum cleaner bag filter of claim 42, the at least one of the one or more deodorizing sheets further comprises a second sheet layer, the second sheet layer comprising an anti-penetration barrier to help prevent incoming objects from penetrating the one or more filter walls. 44. The vacuum cleaner bag filter of claim 35, wherein the one or more deodorizing sheets cover less than about 30% of the working surface area. 45. The vacuum cleaner bag filter of claim 35, wherein the one or more deodorizing sheets cover less than about 25% of the working surface area. 46. The vacuum cleaner bag filter of claim 35, wherein the one or more deodorizing sheets cover about 4% to about 15% of the working surface area. 47. The vacuum cleaner bag filter of claim 35, wherein the one or more deodorizing sheets are attached to the one or more filter walls by an air impermeable adhesive that covers about 5% to about 20% of the total surface area of the one or more deodorizing sheets. 48. The vacuum cleaner bag filter of claim 35, further comprising an air restricting layer attached to the outer surface of the one or more filter walls and overlying at least one of the one or more the deodorizing sheets. 49. The vacuum cleaner bag filter of claim 48, wherein the air restricting layer comprises a blocking emulsion printed on the outer surface of the one or more filter walls. 50. The vacuum cleaner bag filter of claim 48, wherein the air restricting layer reduces airflow through the at least one or the one or more deodorant sheets by about 30% to about 90%. 51. The vacuum cleaner bag filter of claim 48, wherein the air restricting layer reduces airflow through the at least one or the one or more deodorant sheets by about 60-70%. 52. The vacuum cleaner bag filter of claim 35, wherein the one or more deodorizing sheets comprises a single deodorizing sheet. 53. The vacuum cleaner bag filter of claim 35, wherein the one or more deodorizing sheets comprises a plurality of deodorizing sheets. 54. A vacuum cleaner filter comprising: a generally air permeable filter having an upstream filter side and a downstream filter side, the filter being adapted to fit into a vacuum cleaner such that the upstream filter side faces an incoming air stream, and downstream filter side is opposite the upstream filter side; a deodorizing sheet attached to the filter on at least one of the upstream filter side and the downstream filter side, the deodorizing sheet comprising: a first sheet layer, and a plurality of sodium bicarbonate particles operatively associated with the first sheet layer; and wherein the deodorizing sheet is attached to the filter by an air impermeable adhesive that covers more than about 5% of the total surface area of the deodorizing sheet. 55. The vacuum cleaner filter of claim 54, wherein the filter comprises a pleated filter or a foam filter. 56. The vacuum cleaner filter of claim 54, wherein the filter comprises a cylindrical filter, a frustoconical filter, a conical filter, or a flat filter. 57. The vacuum cleaner filter of claim 54, wherein the deodorizing sheet further comprises a second sheet layer, and the plurality of sodium bicarbonate particles are generally deposited between the first sheet layer and the second sheet layer. 58. The vacuum cleaner filter of claim 57, wherein the sodium bicarbonate particles are adhered to at least the first sheet layer by a hot melt adhesive. 59. The vacuum cleaner filter of claim 57, wherein the first sheet comprises a non-woven sheet, and the second sheet comprises a scrim layer. 60. The vacuum cleaner filter of claim 54, wherein the deodorizing sheet is attached to the filter by an air impermeable adhesive that covers about 5% to about 20% of the total surface area of the deodorizing sheet. 61. The vacuum cleaner filter of claim 54, wherein the deodorizing sheet is attached to the upstream filter side. 62. The vacuum cleaner filter of claim 54, wherein the deodorizing sheet is attached to the downstream filter side. 63. The vacuum cleaner filter of claim 54, wherein the filter comprises a pre-motor filter, a post-motor filter, or a cyclone chamber filter.