# US 12,005,380 B2 · Filter with inner container arrangement

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- Number: US 12,005,380 B2
- Document ID: US12005380B2
- Status: Granted
- Kind: B2
- Application number: 18/107,118
- Filed: 2023-02-08
- Published: 2023-06-15
- Granted: 2024-06-11
- Earliest claimed: 2018-06-21
- Assignees: Donaldson Company, Inc.
- Applicants: Donaldson Company, Inc.
- Inventors: Christian L. Newton; Jason A. Wells
- Web page: https://patentgrep.com/patent/US12005380B2

## CPC

- B01D 29/23: arranged for outward flow filtration
- B01D 29/96: in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters (B01D29/09, B01D29/70 take precedence)
- B01D 29/90: for feeding
- B01D 29/902: {containing fixed liquid displacement elements or cores}
- B01D 35/30: Filter housing constructions
- B01D 2201/291: End caps
- B01D 2201/302: having inlet or outlet ports
- B01D 2201/307: Filtering elements contained in an insert body mounted in a filter housing (double casing), e.g. to avoid contamination when removing or replacing the filter element
- B01D 2201/34: Seals or gaskets for filtering elements
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)

## Abstract

A removable filter assembly for filtering a fluid having a particulate or a contaminant and configured to engage a filter housing having a center post. The removable filter assembly includes a filter element adapted to remove at least one of the particulate or contaminate from the fluid, wherein the filter element includes an interior wall defining a passage having a first end and a second end. A container arrangement includes a channel and an outer wall in contact with the filter element at the first end of the passage, wherein the outer wall defines an outer profile extending from the first end of the passage toward the second end of the passage. The channel defines an inner wall configured to provide a relatively fluid tight seal with the center post. The container arrangement is adapted to capture at least one of the particulate or contaminate from the fluid. The outer wall of the container arrangement can include a plurality of radially aligned ribs.

## Claims

### Claim 1

A removable filter assembly for filtering a fluid having a particulate or a contaminant and configured to engage a filter housing having a center post, the removable filter assembly comprising:
a filter element adapted to remove at least one of the particulate or contaminant from the fluid, wherein the filter element includes an interior wall defining a passage having a first end and a second end;
a container arrangement including a channel and a non-porous outer wall in contact with the filter element at the first end of the passage; the container arrangement adapted to capture at least one of the particulate or contaminant from the fluid;
the container arrangement having a shoulder located at the second end of the passage; the shoulder having an interior slot configured to retain a gasket to provide a fluid tight seal with the center post; and
the container arrangement being removable with the filter element from the filter housing.

### Claim 2 (depends on 1)

The removable filter assembly of claim 1 wherein the outer wall defines an outer profile extending from the first end of the passage toward the second end of the passage, the channel defining an inner wall configured to provide a fluid tight seal with the center post.

### Claim 3 (depends on 2)

The removable filter assembly of claim 2 wherein the outer wall includes a plurality of ribs.

### Claim 4 (depends on 3)

The removable filter assembly of claim 3 wherein the ribs are radially aligned.

### Claim 5 (depends on 3)

The removable filter assembly of claim 3 wherein each of the ribs includes an edge defining the outer profile.

### Claim 6 (depends on 2)

The removable filter assembly of claim 2 wherein the outer profile decreases from the first end toward the second end.

### Claim 7 (depends on 1)

The removable filter assembly of claim 1 wherein the outer wall defines a chamber.

### Claim 8 (depends on 7)

The removable filter assembly of claim 7, wherein the outer wall includes a plurality of ribs and the chamber is between each of the ribs.

### Claim 9 (depends on 3)

The removable filter assembly of claim 3, wherein the container arrangement defines a base located at a first end, and wherein each of the ribs extends from the base to the shoulder.