Porous support core for disposable tube filter

Claim 2

The support core of claim 1 wherein the end elements are of a greater diameter than the disc elements and contain an outwardly extending projecting flange, the inner surface of which flange is adapted to form a sealing relationship with the ends of a filter tube placed on the core.

Claim 3

The support core of claim 1 wherein at least one of the end elements is adapted to be placed in an axially movable relationship with an end of the support core formed from the stacked interlocked disc elements, whereby the said at least one end element may be moved axially to confine a filter tube between the end elements.

Claim 4

The support core of claim 1 which includes a filter tube surrounding the support core and disposed between the end elements of said core to form a cartridge filter.

Claim 5

The support core of claim 5 wherein the filter tube is composed of finely divided fibers of between 0.1 to 5.0 microns in average diameter.

Claim 6

The support core of claim 5 wherein the filter tube is composed of resin-impregnated glass fibers.

Claim 7

The support core of claim 5 wherein the filter tube is semirigid and is composed of nonwoven, resin-impregnated fibers of between 0.1 to 5.0 microns in average diameter.

Claim 8

A cylindrical support core adapted for use in supporting a filter tube which core comprises in combination: a. a plurality of generally circular-shaped disc elements of substantially equal diameter and each characterized by a central aperture therein; the disc elements each containing on one surface thereof a series of projecting partitions extending outwardly from the surface of the disc element and generally arranged uniformly and radially about the central aperture, the partitions extending from the central aperture to the outer periphery of the element, the edges of the partitions projecting sUbstantially vertically from said one surface of the disc element and being of substantially equal height, the opposite surface of each disc element containing a plurality of outwardly extending projecting elements which projecting elements have at their outer ends hook-like engaging elements, the extending projecting elements extending substantially perpendicular to said opposite surface of the disc element, the hook-like portion of said engaging projecting elements adapted to fit in and engage in an interlocking close relationship with an adjacent disc element of similar construction, the disc element further characterized by containing a plurality of engaging apertures arranged generally uniformly on the inner periphery of the central aperture of the disc element which apertures are adapted to receive the hook-like extending elements of the adjacent disc element, the disc elements arranged in an adjacent close interlocking stacked relationship to define a plurality of flow passages between the surfaces of the disc and the partitions and to form a support core, the disc elements when placed in a stacked relationship defining an axial passageway throughout the core, and the core characterized by a plurality of flow passages, which flow passages provide communication between the axial passageway and the exterior of the core, end elements adapted to be secured to the opposite ends of the core and of a greater diameter than the disc elements and further adapted to confine sealingly therebetween a filter tube placed on said core, means to secure said end elements on opposite ends of the core, at least one of the end elements adapted to be secured in an axial movable relationship with an end of the support core formed from the stacked interlocked disc elements whereby the said at least one end element may be moved axially to confine a filter tube between the end elements, and at least one of said end elements having an opening therein in fluid communication with the axial passageway.

Claim 9

The support core of claim 9 which includes a filter tube surrounding the support core and disposed between the end elements of said core to form a cartridge filter.

Claim 10

The support core of claim 9 wherein the filter tube is semirigid and is composed of nonwoven, resin-impregnated fibers of between 0.1 to 5.0 microns in average diameter.

Claim 11

The support core of claim 1 wherein the means to join one disc element to an adjacent disc element includes interlocking means on one surface of each of said disc elements to interlock the same to an adjacent disc element; and means on the other surface of each disc element to receive the interlocking means of an adjacent disc element.

Claim 12

The support core of claim 12 wherein the means by which the disc element may receive the interlocking means of the adjacent element includes an aperture in the disc element adapted to receive the interlocking means of an adjacent disc element.

Claim 13

The support core of claim 12 wherein the means or the disc element to interlock the disc element in an interlocking stacked relationship with an adjacent element includes a plurality of elements extending outwardly from the surface of the disc elements opposite to that surface containing the projecting partitions, the elements arranged generally uniformly and containing an enlarged engaging element on the outer end thereof, the engaging element adapted to interlock and be received by an adjacent disc element.

Claim 14

The support core of claim 14 wherein the means whereby the disc element may be received in an interlocking means of an adjacent element includes an aperture in the disc element adapted to receive the enlarged engaging element of the adjacent disc element so that the interlocked disc elements are placed in a close stacked relationship.