AIR FILTER BAG

• US 20150352480A1
• Filed: 06/01/2015
• Published: 12/10/2015
• Est. Priority Date: 06/10/2014
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: MORISON, Pamela Marie, GRUENBACHER, Dana Paul, FUKUDA, Eiro, COMSTOCK, Bryan Gabriel
• Granted Patent: US 9,962,642 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B01D 2265/02 Non-permanent measures for connecting different parts of the filter
• CPC Class Codes: B01D 2273/30 Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
• CPC Class Codes: B01D 2275/201 Conical shape
• CPC Class Codes: B01D 46/0086 Filter condition indicators
• CPC Class Codes: B01D 46/02 Particle separators, e.g. dust precipitators, having hollow filters made of flexible material

Abstract

An improved air filter bag comprising a height from about 35 cm to about 50 cm; a nominal diameter from about 10 to about 40 cm; and a first taper angle from about 65° to about 83° is provided.

Claims

1. An air filter bag comprising:

a height from about 35 cm to about 50 cm;

a nominal diameter from about 10 to about 40 cm; and

a first taper angle from about 65°

to about 83°

.

2. The air filter bag of claim 1, wherein said first taper angle is from about 78°

to about 83°

3. The air filter bag of claim 1 further comprising a gusset.

4. The air filter bag of claim 3, wherein said gusset comprises a gusset taper angle from about 42°

to about 48° and

a depth of less than about 10.2 cm.

5. The air filter bag of claim 1, wherein said density is from about 20 kg/m³ to about 60 kg/m³.

6. The air filter bag of claim 1, wherein said air filter bag comprises a non-woven having a thickness between about 1 and about 3 mm, a density from about 20 kg/m to about 60 kg/m³, and a pore volume distribution of at least about 15% of the total volume is in pores of radii less than about 50 μ

m, at least 40% of the total volume is in pores of radii between about 50 μ

m and about 100 μ

m, and at least 10% of the total volume is in pores of radii greater than about 200 μ

m.

7. The air filter bag of claim 1, wherein said air filter bag is made of a non-woven comprising a total aggregate basis weight of about 20 to about 120 gsm.

8. The air filter bag of claim 1, wherein said air filter bag is made of a hydroentangled non-woven having a thickness of about 1 mm to about 3 mm.

9. The air filter bag of claim 1, wherein said air filter has an air flow surface area of about 0.1 m² to about 1 m².

10. The air filter bag of claim 1, wherein the face velocity of air exiting said air filter bag is about 6 to about 60 fpm, when said air filter bag is used with an air filtering device.

11. The air filter bag of claim 1, further comprising an end-of-life sensor.

12. An air filter bag comprising:

a height from about 35 cm to about 50 cm;

a nominal diameter from about 10 to about 40 cm;

a first taper angle;

a gusset comprising a gusset taper angle from about 42°

to about 48° and

a depth of less than about 10.2 cm.

13. The air filter bag of claim 12, wherein said first taper angle is from about 65°

to about 83°

14. The air filter bag of claim 12, wherein said density is from about 20 kg/m³ to about 60 kg/m³.

15. The air filter bag of claim 12, wherein said air filter bag comprises a non-woven having a thickness between about 1 and about 3 mm, a density from about 20 kg/m³ to about 60 kg/m³, and a pore volume distribution of at least about 15% of the total volume is in pores of radii less than about 50 μ

m, at least 40% of the total volume is in pores of radii between about 50 μ

m and about 100 μ

m, and at least 10% of the total volume is in pores of radii greater than about 200 μ

m.

16. The air filter bag of claim 12, wherein said air filter has an air flow surface area of about 0.1 m² to about 1 m².

17. The air filter bag of claim 12, wherein said air filter bag is made of a non-woven comprising a total aggregate basis weight of about 20 to about 120 gsm.

18. The air filter bag of claim 12, wherein said air filter bag is made of a hydroentangled non-woven having a thickness of about 1 mm to about 3 mm.

19. The air filter bag of claim 12, wherein said air filter has an air flow surface area of about 0.1 m² to about 1 m².

20. An air filter bag comprising:

a height from about 35 cm to about 50 cm;

a nominal diameter from about 10 to about 40 cm;

a first taper angle from about 78°

to about 83°

;

a gusset comprising a gusset taper angle from about 42 to about 48° and

a depth of less than about 10.2 cm;

wherein said air filter bag is made from a non-woven having a thickness between about 1 and about 3 mm, a density from about 20 kg/m to about 60 kg/m³, and a pore volume distribution of at least about 15% of the total volume is in pores of radii less than about 50 μ

m, at least 40% of the total volume is in pores of radii between about 50 μ

m and about 100 μ

m, and at least 10% of the total volume is in pores of radii greater than about 200 μ

m.