Air filter bag

• US 9,962,642 B2
• Filed: 06/01/2015
• Issued: 05/08/2018
• 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, Fukuda, Eiro, Gruenbacher, Dana Paul, Comstock, Bryan Gabriel
• Primary Examiner(s): Jones, Christopher P
• Assistant Examiner(s): PHAM, MINH CHAU THI
• Application Number:
  US14/726,638
• Publication Number:
  US 20150352480A1
• Time in Patent Office: 1,072 Days
• Field of Search: 55522, 55527, 55528, 55DIG 2, 55DIG 34, 95 70, 95273, 96 56, 96 57, 96417
• 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 an outer face, a proximal end and a distal end, wherein the distal end comprises a gusset, wherein the proximal end comprises an opening, the air filter bag further comprising:

a height from about 35 cm to about 50 cm;

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

a taper angle between the outer face and the opening from about 65°

to about 83°

, wherein the air filter bag comprises a non-woven material.

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, wherein said gusset comprises a gusset taper angle from about 42°

to about 48° and

a depth of less than about 10.2 cm.

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

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

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

11. An air filter bag comprising an outer face, a proximal end and a distal end, wherein the distal end comprises a gusset, wherein the proximal end comprises an opening, the air filter bag further 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 between the outer face and the opening;

the gusset comprising a gusset taper angle from about 42°

to about 48° and

a depth of less than about 10.2 cm wherein the air filter bag comprises a non-woven material.

12. The air filter bag of claim 11, wherein said first taper angle is from about 65°

to about 83°

.

13. The air filter bag of claim 11, wherein said density is from about 20 kg/m³ to about 60 kg/m³.

14. The air filter bag of claim 11, 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.

15. The air filter bag of claim 11, wherein said air filter has an air flow surface area of about 0.1 m² to about 1 m².

16. The air filter bag of claim 11, wherein said air filter bag is made of a non-woven comprising a total aggregate basis weight of about 20 to about 120 gsm.

17. The air filter bag of claim 11, wherein said air filter bag is made of a hydroentangled non-woven having a thickness of about 1 mm to about 3 mm.

18. The air filter bag of claim 11, wherein said air filter has an air flow surface area of about 0.1 m² to about 1 m².

19. An air filter bag comprising an outer face, a proximal end and a distal end, wherein the distal end comprises a gusset, wherein the proximal end comprises an opening, the air filter bag further 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 between the outer face and the opening from about 78°

to about 83°

;

the 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.