Support and drainage material, filter, and method of use

Patent metadata

Field	Value
Publication number	US-10773198-B2
Application number	US-201816169521-A
Country	US
Kind code	B2
Filing date	Oct 24, 2018
Priority date	Oct 24, 2018
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

Support and drainage materials, filter including the materials, and methods of use are disclosed.

First claim

The invention claimed is:

1. A support and drainage material comprising a foldable element comprising:
at least one first section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and a plurality of parallel flow channels extending from the first end to the second end, the flow channels comprising side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the side walls having top walls; and,
at least one second section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and a plurality of parallel flow channels extending from the first end to the second end, the flow channels comprising side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the side walls having top walls; wherein the first section is connected to the second section by a flexible hinge;
wherein, the at least one first section further comprises at least one first section aperture extending a length of at least about 75% a distance between the first end and the second end, and extending a length of about 2% to about 100% a distance between the first side and the second side, and/or the at least one second section further comprises at least one second section aperture extending a length of at least about 75% a distance between the first end and the second end, and extending a length of about 2% to about 100% a distance between the first side and the second side;
wherein, when the foldable element is folded, a portion of the first section fits in the at least one aperture of the at least one second section, and/or a portion of the second section fits in the at least one aperture of the at least one first section, providing parallel flow channels.

2. A support and drainage material comprising a foldable element comprising:
at least one first section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and at least one first section aperture extending a length of at least about 75% a distance between the first end and the second end, and extending a length of about 2% to about 100% a distance between the first side and the second side; and,
at least one second section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and a plurality of parallel flow channels extending from the first end to the second end, the flow channels comprising side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the side walls having top walls;
wherein the first section is connected to the second section by a flexible hinge; and,
wherein, when the foldable element is folded, a portion of the second section fits in the at least one aperture of the at least one first section, providing parallel flow channels.

3. The support and drainage material of claim 1 , further comprising an additional first section and an additional second section, wherein the additional first section is connected to the second section by a second foldable hinge, and the additional second section is connected to the additional first section by a third foldable hinge;
wherein, when the foldable element is folded, a portion of the additional first section fits in the at least one aperture of the at least one additional second section, and a portion of the additional second section fits in the at least one aperture of the at least one additional first section, providing parallel flow channels.

4. The support and drainage material of claim 2 , further comprising an additional first section and an additional second section, wherein the additional first section is connected to the second section by a second foldable hinge, and the additional second section is connected to the additional first section by a third foldable hinge;
wherein, when the foldable element is folded, a portion of the additional second section fits in the at least one aperture of the at least one additional first section, providing parallel flow channels.

5. The support and drainage material of claim 1 , wherein the at least one first section has at least two first section apertures, each extending a length of about 2% to about 50% a distance between the first side and the second side; and/or
the at least one second section has at least two single second section apertures, each extending a length of about 2% to about 50% a distance between the first side and the second side.

6. A support and drainage material system comprising a first support and drainage material and a second separate support and drainage material;
(a) the first support and drainage material comprising:
at least one first section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and a plurality of parallel flow channels extending from the first end to the second end, the flow channels comprising side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the side walls having top walls; and,
at least one second section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and a plurality of parallel flow channels extending from the first end to the second end, the flow channels comprising side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the side walls having top walls; wherein the first section is connected to the second section by a flexible hinge;
wherein, the at least one first section further comprises at least one first section aperture extending a length of at least about 75% a distance between the first end and the second end, and extending a length of about 2% to about 100% a distance between the first side and the second side, and/or the at least one second section further comprises at least one second section aperture extending a length of at least about 75% a distance between the first end and the second end, and extending a length of about 2% to about 100% a distance between the first side and the second side;
wherein, when the foldable element is folded, a portion of the first section fits in the at least one aperture of the at least one second section, and/or a portion of the second section fits in the at least one aperture of the at least one first section, providing parallel flow channels;

(b) the second support and drainage material comprising:
at least one first section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and a plurality of parallel flow channels extending from the first end to the second end, the flow channels comprising side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the side walls having top walls; and,
at least one second section having a first end and a second end, a first side and a second side, a first major surface and a second major surface, and a plurality of parallel flow channels extending from the first end to the second end, the flow channels comprising side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the side walls having top walls; wherein the first section is connected to the second section by a flexible hinge;
wherein, the at least one first section further comprises at least one first section aperture extending a length of at least about 75% a distance between the first end and the second end, and extending a length of about 2% to about 100% a distance be

Assignees

• Pall Corp

Inventors

• Zeiler Martin
• Miller John P
• Sorensen Thomas M

Classifications

• B01D2325/02

  Details relating to pores or porosity of the membranes · CPC title

• B01D39/1607 Primary

  the material being fibrous (B01D39/18 takes precedence) · CPC title

• B01D2239/1208

  Porosity · CPC title

• B01D63/14

  Pleat-type membrane modules · CPC title

• B01D46/523

  with means for maintaining spacing between the pleats or folds · CPC title