Filter assembly

Patent metadata

Field	Value
Publication number	US-10052576-B2
Application number	US-201514809443-A
Country	US
Kind code	B2
Filing date	Jul 27, 2015
Priority date	Jul 27, 2015
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

Filter assemblies comprising filter cartridges having a first coupling member including at least one lug having an outer diameter, and a support comprising a second coupling member having at least one channel for receiving the lug, the channel having corresponding channel walls, a terminal section including a closed end and a horizontal axis, and an angled section having an open end, the terminal section including a lug retaining section having a cross-sectional area less than the outer diameter of the lug, methods of coupling the cartridges to the supports, and methods of using the filter assemblies, are disclosed.

First claim

The invention claimed is:

1. A filter assembly comprising:
a. a filter cartridge comprising a closed end and an open end; a handle attached to the closed end, at least one filter module interposed between the closed end and the open end; and a first coupling member attached to the open end, the first coupling member having a central lumen therethrough and an external surface, and at least one lug extending from the external surface, the lug having an outer diameter; and,
b. a support comprising a second coupling member, the second coupling member having a central lumen therethrough and a side wall having at least one channel for receiving the lug, the channel having corresponding channel walls, a terminal section including a closed end and a horizontal axis, and an angled section, angled from the horizontal axis, the angled section having an open end and corresponding parallel channel walls extending from the open end, the terminal section including a lug retaining section having a cross-sectional area narrower than the outer diameter of the lug, the lug retaining section providing resistance as the lug passes through the narrower cross-sectional area;
wherein the filter cartridge is engageable with the support by coupling the first and second coupling members together such that the lug is rotated in the channel from the angled section, through the lug retaining section, into the terminal section, the lug retaining section preventing the lug from rotating out of the terminal section.

2. The filter assembly of claim 1 , wherein the first coupling member has at least two lugs extending from the external surface, and the side wall of the second coupling member has at least two channels, each channel receiving a separate lug.

3. The filter assembly of claim 2 , wherein the central lumen of second coupling member includes a tapered cross-sectional area.

4. The filter assembly of claim 2 , wherein the first coupling member comprises a cylindrical end with an exterior surface including at least one groove and at least one resilient ring in the groove, and the central lumen of the second coupling member also includes a non-tapered cross-sectional area having a vertical wall with an internal surface, wherein the resilient ring on the first coupling member is compressed when contacting the internal surface of the vertical wall, the resilient ring sealing against the internal surface when the filter cartridge is engaged with the support.

5. The filter assembly of claim 2 , wherein the first and second coupling members are coupled and aligned and the filter cartridge is engaged with the support when the lug passes through the lug retaining section.

6. A filter device comprising a filter device housing comprising an inlet and an outlet and including the filter cartridge engaged with the support of claim 2 arranged in the filter device housing, providing a fluid flow path between the inlet and the outlet, wherein the filter cartridge is across the fluid flow path.

7. The filter assembly of claim 1 , wherein the central lumen of second coupling member includes a tapered cross-sectional area.

8. The filter assembly of claim 7 , wherein the first coupling member comprises a cylindrical end with an exterior surface including at least one groove and at least one resilient ring in the groove, and the central lumen of the second coupling member also includes a non-tapered cross-sectional area having a vertical wall with an internal surface, wherein the resilient ring on the first coupling member is compressed when contacting the internal surface of the vertical wall, the resilient ring sealing against the internal surface when the filter cartridge is engaged with the support.

9. The filter assembly of claim 7 , wherein the first and second coupling members are coupled and aligned and the filter cartridge is engaged with the support when the lug passes through the lug retaining section.

10. A filter device comprising a filter device housing comprising an inlet and an outlet and including the filter cartridge engaged with the support of claim 7 arranged in the filter device housing, providing a fluid flow path between the inlet and the outlet, wherein the filter cartridge is across the fluid flow path.

11. The filter assembly of claim 1 , wherein the first coupling member comprises a cylindrical end with an exterior surface including at least one groove and at least one resilient ring in the groove, and the central lumen of the second coupling member also includes a non-tapered cross-sectional area having a vertical wall with an internal surface, wherein the resilient ring on the first coupling member is compressed when contacting the internal surface of the vertical wall, the resilient ring sealing against the internal surface when the filter cartridge is engaged with the support.

12. The filter assembly of claim 11 , wherein the first and second coupling members are coupled and aligned and the filter cartridge is engaged with the support when the lug passes through the lug retaining section.

13. A filter device comprising a filter device housing comprising an inlet and an outlet and including the filter cartridge engaged with the support of claim 11 arranged in the filter device housing, providing a fluid flow path between the inlet and the outlet, wherein the filter cartridge is across the fluid flow path.

14. The filter assembly of claim 1 , wherein the first and second coupling members are coupled and aligned and the filter cartridge is engaged with the support when the lug passes through the lug retaining section.

15. A filter device comprising a filter device housing comprising an inlet and an outlet and including the filter cartridge engaged with the support of claim 14 arranged in the filter device housing, providing a fluid flow path between the inlet and the outlet, wherein the filter cartridge is across the fluid flow path.

16. A filter device comprising a filter device housing comprising an inlet and an outlet and including the filter cartridge engaged with the support of claim 1 , arranged in the filter device housing, providing a fluid flow path between the inlet and the outlet, wherein the filter cartridge is across the fluid flow path.

17. A method for engaging a filter cartridge with a support, the method comprising:
engaging (a) a filter cartridge comprising a closed end and an open end; a handle attached to the closed end, at least one filter module interposed between the closed end and the open end; and a first coupling member attached to the open end, the first coupling member having a central lumen therethrough and an external surface, and at least one lug extending from the external surface, the lug having an outer diameter, with (b) a support comprising a second coupling member, the second coupling member having a central lumen therethrough and a side wall having at least one channel for receiving the lug, the channel having corresponding channel walls, a terminal section including a closed end and a horizontal axis, and an angled section, angled from the horizontal axis, the angled section having an open end and corresponding parallel channel walls extending from the open end, the terminal section including a lug retaining section having a cross-sectional area narrower than the outer diameter of the lug, the lug retaining section providing resistance as the lug passes through the narrower cross-sectional area;
the method including coupling the first and second coupling members together and rotating the lug in the channel from the angled section, through the lug retaining section, into the

Assignees

• Pall Corp

Inventors

• Till James G
• Macgregor Samuel
• Gunzi Christopher C
• Munn Anthony J

Classifications

• B01D2201/0438

  mounted substantially vertically on plates at the lower side of the filter elements · CPC title

• B01D2265/025

  making use of ramps or cams · CPC title

• B01D2201/0415

  Details of supporting structures · CPC title

• B01D46/0005 Primary

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

• B01D29/58 Primary

  arranged concentrically or coaxially · CPC title