Filter cartridge with seal member and methods

Patent metadata

Field	Value
Publication number	US-9393511-B2
Application number	US-201414295998-A
Country	US
Kind code	B2
Filing date	Jun 4, 2014
Priority date	Oct 14, 2009
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.

First claim

I claim:

1. A gasket and a filter cartridge combination; the combination comprising:
(a) a perimeter gasket member;
(b) a separate side gasket member, adjacent to the perimeter gasket member, without a gap in between;
(i) the side gasket member and perimeter gasket member being attached or fitted together;
(ii) the side gasket member being angled relative to the perimeter gasket member at an angle of 20-70°;
(iii) the side gasket member including a first gasket segment and a second gasket segment, a ratio of a length of the first gasket segment to the second gasket segment being between 1-2.5; and
(iv) the perimeter gasket member and side gasket member together defining an open filter cartridge-receiving cavity and accommodating a filter cartridge therein.

2. The combination of claim 1 wherein the first gasket segment and the second gasket segment each has a thickness of 0.35-0.40 inches.

3. The combination of claim 1 wherein the ratio of a length of the first gasket segment to the second gasket segment is 1.6-2.0.

4. The combination of claim 1 wherein the gasket is made of a compressive material having a resistance of 3-5 psi at 25% compression.

5. The combination of claim 1 wherein the gasket comprises EPDM sponge material.

6. The combination of claim 1 wherein both the perimeter gasket member and side gasket member are straight.

7. The combination of claim 1 wherein the gasket comprises polyurethane foam material.

8. The combination of claim 1 wherein the filter cartridge comprises a media pack having upstream and downstream opposite flow faces and first and second opposite sides extending between the upstream and downstream opposite flow faces; and wherein the perimeter gasket member is around a portion of a perimeter of the downstream flow face.

9. The combination of claim 8 wherein the media pack comprising a stack of strips of single facer filter media material, each strip including a fluted media sheet secured to a facing media sheet and oriented with flutes of each fluted sheet extending in a direction between the upstream and downstream flow faces; the upstream flow face and downstream flow face being parallel, and each strip of the media pack being angled relative to a horizontal surface from the upstream flow face to the downstream flow face at an angle of 20-80 degrees.

Assignees

• Donaldson Co Inc

Inventors

• Raether Thomas Donald

Classifications

• B01D2265/025

  making use of ramps or cams · CPC title

• B01D2267/60

  Vertical arrangement · CPC title

• Y10T29/4973

  Replacing of defective part · CPC title

• B01D46/0005 Primary

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• B01D2271/02

  Gaskets, sealings · CPC title