FILTER HOLDING FRAME WITH FILTER GASKET

• US 20130291502A1
• Filed: 04/26/2013
• Published: 11/07/2013
• Est. Priority Date: 05/01/2012
• Status: Active Grant

• Current Assignee: Camfil USA, Inc.
• Original Assignee: Camfil Farr, Inc.
• Inventors: GORMAN, Joseph J.
• Granted Patent: US 9,039,801 B2
• Time in Patent Office: Days
• US Class Current: 55/490
• CPC Class Codes: B01D 2271/02 Gaskets, sealings
• CPC Class Codes: B01D 46/0005 Mounting of filtering elements within casings, housings or frames B01D46/2422 takes precedence
• CPC Class Codes: B01D 46/10 Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• CPC Class Codes: F16J 15/062 characterised by the geometry of the seat
• CPC Class Codes: F16J 15/104 characterised by structure
• CPC Class Codes: F16L 23/16 characterised by the sealing means

Abstract

In one embodiment, a filter holding frame assembly includes a frame having a plurality of walls forming a quadrilateral ring and a gasket. The frame has a plurality of flanges, and each flange is coupled to a respective one of the walls and extends into the ring. The gasket has a connection portion coupled to a sealing portion. The connection portion has a substantially u-shaped cross-section coupled to the flange. The sealing portion has a flexible sealing element that extends away from the connection portion. In another embodiment, a gasket includes a connection portion coupled to a sealing portion. The connection portion has a substantially u-shaped cross-section configured to receive a filter holding frame and includes a bottom. The sealing portion comprises a first flexible sealing element that extends outwards from the connection portion. The bottom of the connection portion does not extend to the end of the sealing portion.

Claims

1. A filter holding frame assembly, comprising:

a filter holding frame having a plurality of walls forming a quadrilateral ring defined around a central aperture the filter holding frame having a plurality of flanges, each flange coupled to a respective one of the walls and extending into the ring;

a gasket coupled to each of the flanges, the gasket having a connection portion coupled to a sealing portion, the connection portion having a substantially u-shaped cross-section coupled to the flange, the sealing portion having a first flexible sealing element extending away from the connection portion and into the central aperture.

2. The filter holding frame assembly of claim 1, wherein the substantially u-shaped cross-section includes a first side, a second side and a bottom, the first sealing element extending from the connection portion and movable to a position beyond the bottom of the u-shaped cross-section.

3. The filter holding frame assembly of claim 2, wherein the bottom of the u-shaped cross-section includes a slot configured to allows the gasket to slide beyond the flange towards the neighboring flange.

4. The filter holding frame assembly of claim 2, wherein the first and second side and the bottom of the substantially u-shaped cross-section form a flange receiving slot to couple the substantially u-shaped cross-section with the flange.

5. The filter holding frame assembly of claim 4, wherein the gasket further comprises a plurality of grippers extending from the first side adjacent the flange receiving slot and the second side adjacent the flange receiving slot.

6. The filter holding frame assembly of claim 1, wherein the plurality of flanges includes at least a first flange and a second flange, and wherein the first sealing element of the gasket coupled to the first flange overlaps with the first sealing element of the gasket coupled to the second flange.

7. The filter holding frame assembly of claim 2, wherein the sealing portion further comprises a second sealing element adjacent a second end of the connection portion.

8. A filter gasket comprising:

a connection portion coupled to a sealing portion and forming a unitary strip, the connection portion having a substantially u-shaped cross-section configured to receive a filter holding frame, wherein the substantially u-shaped cross-section includes a first side, a second side and a bottom, wherein the bottom of the u-shaped cross-section includes a slot configured to couple the gasket with a neighboring filter holding frame flange, and wherein the sealing portion comprises a first flexible sealing element extending beyond the slot in the bottom of the u-shaped cross-section.

9. The filter gasket of claim 10, wherein the sealing portion further comprises a second flexible sealing element adjacent a second end of the connection portion.

10. The filter gasket of claim 8, wherein the filter gasket further comprises a plurality of grippers extending from the first side adjacent the flange receiving slot and the second side adjacent the flange receiving slot.

11. The filter gasket of claim 8, wherein the filter gasket is fabricated at least partially from a resilient material.

12. The filter gasket of claim 11, wherein the filter gasket is fabricated from an elastomer.

13. The filter gasket of claim 8, wherein the connection portion and the sealing element are coextruded.

14. The filter gasket of claim 8, wherein a length of the sealing portion is greater than a length of the connection portion.

15. The filter gasket of claim 8 further comprising a plurality of grippers extending from the first side adjacent a filter holding frame receiving slot and extending from the second side adjacent the filter holding frame receiving slot.

16. A filter gasket kit comprising:

four first elongated gasket strips, each first elongated gasket strip comprising;

a connection portion coupled to a sealing portion and forming a unitary strip, the connection portion having a substantially u-shaped cross-section configured to receive a filter holding frame, wherein the substantially u-shaped cross-section includes a first side, a second side and a bottom, wherein the bottom of the u-shaped cross-section includes a slot configured to couple the gasket with a neighboring filter holding frame flange, and wherein the sealing portion comprises a first flexible sealing element extending beyond the slot in the bottom of the u-shaped cross-section; and

packaging securing the four first elongated gasket strips.

17. A filter gasket comprising:

a connection portion coupled to a sealing portion and forming a unitary strip, the connection portion having a substantially u-shaped cross-section configured to receive a filter holding frame, wherein the substantially u-shaped cross-section includes a first side, a second side and a bottom, the sealing portion comprises a first flexible sealing element extending outwards from the connection portion, wherein the bottom of the connection portion does not extend to the end of the sealing portion, and wherein sealing portion has a length greater than the first side of the connection portion, and wherein the first side of the connection portion faces the sealing portion.