Granted Patent B1

US 8,051,989 · App. 12/463,459 · Granted Nov 8, 2011

Abstract

Claims (46)

1. A support structure of a filter element for supporting a filter material that is adapted to filter a fluid, the support structure comprising:

a first frame portion having a plurality of radially-extending fingers that are longitudinally spaced from one another, the first frame portion disposed entirely on an unfiltered side of the filter material;

a second frame portion having a pair of longitudinally-extending support surfaces that are disposed in a spaced, facing relationship with respect to one another, the second frame portion disposed entirely on a filtered side of the filter material; and

the radially-extending fingers of the first frame portion and each of the longitudinally-extending support surfaces of the second frame portion support the filter material to define a first radial channel, wherein the radially-extending fingers of the first frame portion space the longitudinally-extending support surfaces of the second frame portion apart from one another.

2. The support structure of claim 1 , wherein the filter material is interposed between each of the radially-extending fingers of the first frame portion and each of the longitudinally-extending support surfaces of the second frame portion.

3. The support structure of claim 2 , further comprising:

the first frame portion having a pair of longitudinally-extending support surfaces that are disposed in a spaced, facing relationship with respect to one another;

the second frame portion having a plurality of radially-extending fingers that are longitudinally spaced from one another; and

the radially-extending fingers of the second frame portion and each of the longitudinally-extending support surfaces of the first frame portion support the filter material to define a second radial channel, wherein the filter material is interposed between each of the radially-extending fingers of the second frame portion and each of the longitudinally-extending support surfaces of the first frame portion, and the radially-extending fingers of the second frame portion space the longitudinally-extending support surfaces of the first frame portion apart from one another.

4. The support structure of claim 3 , further comprising:

the first frame portion and the second frame portion support the filter material to define a first circumferential channel in non-filtering fluid communication with the first radial channel;

the first frame portion having a plurality of longitudinally spaced ring members disposed within the first circumferential channel, each ring member of the first frame portion connected to both of the longitudinally-extending support surfaces of the first frame portion and to one of the radially-extending fingers of the first frame portion to support the radially-extending fingers of the first frame portion with respect to the longitudinally-extending support surfaces of the first frame portion;

the first frame portion and the second frame portion support the filter material to define a second circumferential channel in non-filtering fluid communication with the second radial channel; and

the second frame portion having a plurality of longitudinally spaced ring members disposed within the second circumferential channel, each ring member of the second frame portion connected to both of the longitudinally-extending support surfaces of the second frame portion and to one of the radially-extending fingers of the second frame portion to support the radially-extending fingers of the second frame portion with respect to the longitudinally-extending support surfaces of the second frame portion.

5. The support structure of claim 4 , wherein the first radial channel provides non-filtering fluid communication between an exterior of the filter element and the first circumferential channel and the second radial channel provides non-filtering fluid communication between an inner core of the filter element and the second circumferential channel.

6. The support structure of claim 4 , wherein the first radial channel provides non-filtering fluid communication between an inner core of the filter element and the first circumferential channel and the second radial channel provides non-filtering fluid communication between an exterior of the filter element and the second circumferential channel.

7. The support structure of claim 1 , further comprising:

a top end cap; and

a bottom end cap, wherein the longitudinally-extending support surfaces of the second frame portion extend from the top end cap to the bottom end cap.

8. The support structure of claim 7 , wherein the first radial channel extends from the top end cap to the bottom end cap.

9. The support structure of claim 1 , wherein the longitudinally-extending support surfaces of the second frame portion are substantially rectangular.

10. The support structure of claim 1 , wherein the radially-extending fingers of the first frame portion are substantially planar.

11. The support structure of claim 10 , wherein the radially-extending fingers of the first frame portion are substantially rectangular.

12. The support structure of claim 10 , wherein the radially-extending fingers of the first frame portion extend substantially perpendicular to the longitudinally-extending support surfaces of the second frame portion.

13. A support structure of a filter element for supporting a substantially continuous filter material that is adapted to filter a fluid, the support structure comprising:

a first frame portion having a pair of substantially planar, longitudinally-extending support surfaces that are disposed in a spaced, facing relationship with respect to one another, and a plurality of radially-extending fingers that are longitudinally spaced from one another, the first frame portion disposed entirely on an unfiltered side of the filter material;

a second frame portion having a pair of substantially planar, longitudinally-extending support surfaces that are disposed in a spaced, facing relationship with respect to one another, and a plurality of radially-extending fingers that are longitudinally spaced from one another, the second frame portion disposed entirely on a filtered side of the filter material;

the first frame portion and the second frame portion support the filter material to define a first circumferential channel and a first radial channel in non-filtering fluid communication with the first circumferential channel to provide fluid to or receive fluid from the first circumferential channel, wherein the filter material is interposed between each of the radially-extending fingers of the first frame portion and each of the longitudinally-extending support surfaces of the second frame portion, and the radially-extending fingers of the first frame portion space the longitudinally-extending support surfaces of the second frame portion apart from one another; and

the first frame portion and the second frame portion support the filter material to define a second circumferential channel and a second radial channel in non-filtering fluid communication with the second circumferential channel to provide fluid to or receive fluid from the second circumferential channel, wherein the filter material is interposed between each of the radially-extending fingers of the second frame portion and each of the longitudinally-extending support surfaces of the first frame portion, and the radially-extending fingers of the second frame portion space the longitudinally-extending support surfaces of the first frame portion apart from one another, wherein the first circumferential channel is in filtering fluid communication with the second circumferential channel by passage of the fluid through the filter material.

14. The support structure of claim 13 , further comprising:

the first frame portion having a plurality of longitudinally spaced ring members disposed within the first circumferential channel, each ring member of the first frame portion connected to both of the longitudinally-extending support surfaces of the first frame portion and to one of the radially-extending fingers of the first frame portion to support the radially-extending fingers of the first frame portion with respect to the longitudinally-extending support surfaces of the first frame portion; and

the second frame portion having a plurality of longitudinally spaced ring members disposed within the second circumferential channel, each ring member of the second frame portion connected to both of the longitudinally-extending support surfaces of the second frame portion and to one of the radially-extending fingers of the second frame portion to support the radially-extending fingers of the second frame portion with respect to the longitudinally-extending support surfaces of the second frame portion.

15. The support structure of claim 13 , wherein the first radial channel provides non-filtering fluid communication between an exterior of the filter element and the first circumferential channel and the second radial channel provides non-filtering fluid communication between an inner core of the filter element and the second circumferential channel.

16. The support structure of claim 13 , wherein the first radial channel provides non-filtering fluid communication between an inner core of the filter element and the first circumferential channel and the second radial channel provides non-filtering fluid communication between an exterior of the filter element and the second circumferential channel.

17. The support structure of claim 13 , further comprising:

a top end cap; and

a bottom end cap, wherein the longitudinally-extending support surfaces of the first frame portion extend from the top end cap to the bottom end cap and the longitudinally-extending support surfaces of the second frame portion extend from the top end cap to the bottom end cap.

18. The support structure of claim 17 , wherein the first radial channel extends from the top end cap to the bottom end cap and the second radial channel extends from the top end cap to the bottom end cap.

19. The support structure of claim 13 , wherein the longitudinally-extending support surfaces of the first frame portion and the second frame portion are substantially rectangular and further wherein the radially-extending fingers of the first frame portion and the second frame portion are substantially planar, substantially rectangular, and extend perpendicular to the longitudinally-extending support surfaces of the second frame portion and the first frame portion, respectively.

20. A support structure of a filter element for supporting a substantially continuous filter material that is adapted to filter a fluid, the support structure comprising:

a top end cap;

a bottom end cap;

a first frame portion having a pair of substantially planar, longitudinally-extending support surfaces that are disposed in a spaced, facing relationship with respect to one another and extend from the top end cap to the bottom end cap, a plurality of radially-extending fingers that are longitudinally spaced from one another, and a plurality of longitudinally spaced ring members each connected to both of the longitudinally-extending support surfaces of the first frame portion and to one of the radially-extending fingers of the first frame portion to support the radially-extending fingers of the first frame portion with respect to the longitudinally-extending support surfaces of the first frame portion, the first frame portion disposed entirely on an unfiltered side of the filter material;

a second frame portion having a pair of substantially planar, longitudinally-extending support surfaces that are disposed in a spaced, facing relationship with respect to one another and extend from the top end cap to the bottom end cap, a plurality of radially-extending fingers that are longitudinally spaced from one another, and a plurality of longitudinally spaced ring members each connected to both of the longitudinally-extending support surfaces of the second frame portion and to one of the radially-extending fingers of the second frame portion to support the radially-extending fingers of the second frame portion with respect to the longitudinally-extending support surfaces of the second frame portion, the second frame portion disposed entirely on a filtered side of the filter material;

the first frame portion and the second frame portion support the filter material to define a first circumferential channel and a first radial channel that extends from the top end cap to the bottom end cap and is in non-filtering fluid communication with the first circumferential channel to provide fluid to or receive fluid from the first circumferential channel, wherein the filter material is interposed between each of the radially-extending fingers of the first frame portion and each of the longitudinally-extending support surfaces of the second frame portion, and the radially-extending fingers of the first frame portion space the longitudinally-extending support surfaces of the second frame portion apart from one another; and

the first frame portion and the second frame portion support the filter material to define a second circumferential channel and a second radial channel that extends from the top end cap to the bottom end cap and is in non-filtering fluid communication with the second circumferential channel to provide fluid to or receive fluid from the second circumferential channel, wherein the filter material is interposed between each of the radially-extending fingers of the second frame portion and each of the longitudinally-extending support surfaces of the first frame portion, and the radially-extending fingers of the second frame portion space the longitudinally-extending support surfaces of the first frame portion apart from one another, wherein the first circumferential channel is in filtering fluid communication with the second circumferential channel by passage of the fluid through the filter material.

Assignments (9)