Filter, filter device, and method of use

Patent metadata

Field	Value
Publication number	US-10413852-B2
Application number	US-201715472598-A
Country	US
Kind code	B2
Filing date	Mar 29, 2017
Priority date	Mar 29, 2017
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

Filters, filter devices including the filters, and methods of using the filters and filter devices, are disclosed.

First claim

The invention claimed is:

1. A filter comprising:
(a) a porous filter element comprising a cylindrical porous metal medium having a hollow interior, a first end, and a second end, the porous metal medium having an inner surface defining the hollow interior of the porous metal medium;
(b) a first porous metal end cap formed at the first end of the porous metal medium, the first porous metal end cap having an inner surface facing the first end of the porous metal medium;
(c) a second porous metal end cap formed at the second end of the porous metal medium, the second porous metal end cap having an inner surface facing the second end of the porous metal medium;
wherein the inner surface of the first porous metal end cap and/or the inner surface of the second porous metal end cap includes a plurality of porous ribs extending from the inner surface toward the hollow interior;
and/or
the inner surface of the porous metal medium includes at least one porous rib extending from the inner surface toward the hollow interior.

2. The filter of claim 1 , wherein the porous ribs on the inner surface of the first porous metal end cap and/or on the inner surface of the second porous metal end cap are radially arranged.

3. The filter of claim 1 , wherein the at least one porous rib on the inner surface of the porous metal medium is circumferentially or helically arranged along the inner surface of the porous metal medium.

4. The filter of claim 1 , wherein the inner surface of the porous metal medium includes a plurality of porous ribs extending from the inner surface toward the hollow interior, and the porous ribs on the inner surface of the porous metal medium are axially, coaxially, circumferentially, helically and/or longitudinally arranged along the inner surface of the porous metal medium.

5. The filter of claim 1 , wherein the porous ribs on the inner surface of the first porous metal end cap and/or the second porous metal end cap extend from a portion of the inner surface of the first porous metal end cap and/or from a portion of the inner surface of the second porous metal end cap to a portion of the inner surface of the porous metal medium.

6. The filter of claim 1 , wherein the first porous metal end cap and/or the second porous metal end cap has a central opening, passing from an outer surface of the porous metal end cap through the inner surface of the porous metal end cap and communicating with the hollow interior of the porous metal medium.

7. The filter of claim 1 , having a substantially uniform voids volume throughout the porous metal medium and the first and second end caps.

8. A filter device comprising
(a) a housing comprising an inlet and an outlet and defining a fluid flow path between the inlet and the outlet, wherein the filter is across the fluid flow path; and
(b) a filter comprising:
a porous filter element comprising a cylindrical porous metal medium having a hollow interior, a first end, and a second end, the porous metal medium having an inner surface defining the hollow interior of the porous metal medium;
a first porous metal end cap formed at the first end of the porous metal medium, the first porous metal end cap having an inner surface facing the first end of the porous metal medium;
a second porous metal end cap formed at the second end of the porous metal medium, the second porous metal end cap having an inner surface facing the second end of the porous metal medium;
wherein the inner surface of the first porous metal end cap and/or the inner surface of the second porous metal end cap includes a plurality of porous ribs extending from the inner surface toward the hollow interior;

 and/or
the inner surface of the porous metal medium includes at least one porous rib extending from the inner surface toward the hollow interior, disposed in the housing across the fluid flow path.

9. A method of filtering a fluid comprising passing the fluid through a filter comprising:
(a) a porous filter element comprising a cylindrical porous metal medium having a hollow interior, a first end, and a second end, the porous metal medium having an inner surface defining the hollow interior of the porous metal medium;
(b) a first porous metal end cap formed at the first end of the porous metal medium, the first porous metal end cap having an inner surface facing the first end of the porous metal medium;
(c) a second porous metal end cap formed at the second end of the porous metal medium, the second porous metal end cap having an inner surface facing the second end of the porous metal medium;
wherein the inner surface of the first porous metal end cap and/or the inner surface of the second porous metal end cap includes a plurality of porous ribs extending from the inner surface toward the hollow interior;
and/or
the inner surface of the porous metal medium includes at least one porous rib extending from the inner surface toward the hollow interior.

10. The method of claim 9 , wherein the fluid comprises steam.

11. The filter of claim 2 , wherein the at least one porous rib on the inner surface of the porous metal medium is circumferentially or helically arranged along the inner surface of the porous metal medium.

12. The filter of claim 2 , wherein the inner surface of the porous metal medium includes a plurality of porous ribs extending from the inner surface toward the hollow interior, and the porous ribs on the inner surface of the porous metal medium are axially, coaxially, circumferentially, helically and/or longitudinally arranged along the inner surface of the porous metal medium.

13. The filter of claim 2 , wherein the porous ribs on the inner surface of the first porous metal end cap and/or the second porous metal end cap extend from a portion of the inner surface of the first porous metal end cap and/or from a portion of the inner surface of the second porous metal end cap to a portion of the inner surface of the porous metal medium.

14. The filter of claim 2 , wherein the first porous metal end cap and/or the second porous metal end cap has a central opening, passing from an outer surface of the porous metal end cap through the inner surface of the porous metal end cap and communicating with the hollow interior of the porous metal medium.

15. The filter of claim 2 , having a substantially uniform voids volume throughout the porous metal medium and the first and second end caps.

16. The filter of claim 11 , wherein the inner surface of the porous metal medium includes a plurality of porous ribs extending from the inner surface toward the hollow interior, and the porous ribs on the inner surface of the porous metal medium are axially, coaxially, circumferentially, helically and/or longitudinally arranged along the inner surface of the porous metal medium.

17. The filter of claim 16 , wherein the porous ribs on the inner surface of the first porous metal end cap and/or the second porous metal end cap extend from a portion of the inner surface of the first porous metal end cap and/or from a portion of the inner surface of the second porous metal end cap to a portion of the inner surface of the porous metal medium.

18. The filter of claim 3 , wherein the porous ribs on the inner surface of the first porous metal end cap and/or the second porous metal end cap extend from a portion of the inner surface of the first porous metal end cap and/or from a portion of the inner surface of the second porous metal end cap to a portion of the inner surface of the porous metal medium.

19. The filter of claim 4 , wherein the porous r

Assignees

• Pall Corp

Inventors

• Hopkins Scott

Classifications

• B29C64/165

  using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title

• B01D2271/022

  Axial sealings · CPC title

• B01D2201/304

  Seals or gaskets · CPC title

• B01D2201/303

  not arranged concentrically · CPC title

• B01D46/2414

  End caps including additional functions or special forms · CPC title