公开(公告)号：US20250066759A1

公开(公告)日：2025-02-27

申请号：US18813397

申请日：2024-08-23

Applicant: Donaldson Company, Inc.

Inventor： Michael DZURICKY ,  Kelli M. LUGINBUHL ,  James MCGUINESS

IPC: C12N15/10 ,  C07K14/32

Abstract: Provided herein are fusion proteins and methods of use thereof to purify nucleic acids from a composition. The disclosed compositions and methods allow for faster, more efficient purification of nucleic acids compared to traditional affinity chromatography.

公开(公告)号：US20250058261A1

公开(公告)日：2025-02-20

申请号：US18925582

申请日：2024-10-24

Applicant: Donaldson Company, Inc.

Inventor： Steven A. Carter ,  Stephen M. Martin ,  Gert Proost

IPC: B01D46/10 ,  B01D46/00 ,  B01D46/24 ,  B01D46/52

Abstract: According to the present disclosure, features, components and techniques useable for providing air cleaner arrangements are provided. Many of the features relate to an axial seal arrangement provided on a filter cartridge. A typical filter cartridge, for use with these features, is a filter cartridge having opposite flow ends. Example media arrangements that fit this characterization are described. Seal arrangements provided with an axial housing sealing engagement surface are shown. A seal arrangement is provided. Also, air cleaner assemblies having advantageous features therein are provided. Further, air cleaner housings are described, with selected, preferred features for engagement with filter cartridges.

公开(公告)号：US20250052218A1

公开(公告)日：2025-02-13

申请号：US18773039

申请日：2024-07-15

Applicant: Donaldson Company, Inc.

Inventor： Johan DEWIT ,  Johnny CRAESSAERTS

IPC: F02M35/024 ,  B01D46/00 ,  B01D46/52 ,  B01D46/62 ,  B01D50/20 ,  F02M35/02

Abstract: An air filter element includes a filter arrangement, an elbow, and a filter element seal member. The filter arrangement includes a filter media pack having a dirty air inlet and a clean air outlet, wherein air flowing through the clean air outlet flows in a first axial direction and the clean air outlet defines a filter arrangement cross sectional area. The elbow has a first end constructed to extend from the filter arrangement clean air outlet, a second end wherein air flowing through the second end flows in a second axial direction, and an air flow enclosure extending from the elbow first end to the elbow second end. The air flow enclosure includes an air deflector constructed to direct air from the first axial direction to the second axial direction, wherein the second axial direction is different from the first axial direction, and an interior volume between the elbow first end and the elbow second end. The filter element seal member is located on the elbow second end, wherein the filter element seal member is constructed to seal to a clean air intake, the filter element seal member located on the elbow second end defining a seal member cross sectional area. The filter element can be characterized as having a ratio of the seal member cross sectional area to the filter arrangement cross sectional area of at least 0.5. The filter element can have a z-filter media pack for a pleated media pack. The air filter element can be arranged in an air cleaner.

公开(公告)号：US20250018324A1

公开(公告)日：2025-01-16

申请号：US18713103

申请日：2022-04-22

Applicant: Donaldson Company, Inc.

Inventor： Mathijs VERSTRAETE ,  Günther VAN DE POEL ,  Bart CATOOR ,  Kristof DECOSTER

IPC: B01D46/64 ,  B01D46/00 ,  B01D46/24 ,  F02M35/024

Abstract: A safety filter element suitable for use in a filter assembly includes a safety filter media at least partially surrounding a safety filter media inner space and at least one safety filter element endcap having an outlet opening that leads to the safety filter media inner space. The safety filter element endcap comprises a safety filter element circumferential support structure, whereby a sealing component is arranged on the safety filter element circumferential support structure and extends along the safety filter element circumferential support structure, and a housing sealing component.

公开(公告)号：US20250001345A1

公开(公告)日：2025-01-02

申请号：US18692296

申请日：2022-09-16

Applicant: Donaldson Company, Inc.

Inventor： Bart CATOOR ,  Mathijs VERSTRAETE ,  Kristof DECOSTER ,  Gunther VAN DE POEL

IPC: B01D46/64 ,  B01D46/00 ,  B01D46/52

Abstract: The present disclosure relates to a safety filter element for backing up a failure of a main filter element comprising a primary filter medium pack. The safety filter element comprises a secondary filter medium pack and a shell wherein a first portion of an inner side of a circumferential wall of the shell is surrounding a circumferential side of the secondary filter medium pack, and wherein a second portion of the inner side of the circumferential wall of the shell is radially delimiting a cavity located between a first opening of the shell and a fluid inlet side of the secondary filter medium pack. The cavity allows for receiving or at least partly receiving the primary filter medium pack of the main filter element. The safety filter element comprises a first seal member that comprises a first circumferential sealing portion for sealing to the shell and a second circumferential sealing portion for sealing to the main filter element. The second circumferential sealing portion has a contour shape of single-fold rotational symmetry.

公开(公告)号：US12168194B2

公开(公告)日：2024-12-17

申请号：US17443229

申请日：2021-07-22

Applicant: Donaldson Company, Inc.

Inventor： David J. Burton ,  Hubert Julius Rahn

IPC: B01D45/12 ,  B01D45/14 ,  B01D46/00 ,  B01D46/10 ,  B01D46/24 ,  B01D46/26 ,  B01D46/52 ,  B01D46/62 ,  B01D50/20 ,  F02M35/02 ,  F02M35/024

Abstract: Air cleaner assemblies, components, features and methods of assembly and use are described. Example air cleaner assemblies are depicted and described in which a main filter cartridge sealing surface is recessed from an open end of a housing body. An access cover of the housing is configured with a portion extending inwardly to engage a main filter cartridge portion and bias it against the main filter cartridge sealing surface. In selected assemblies, the portion of the access cover extending inwardly toward the main filter cartridge, is a precleaner having flow separator tubes therein.

公开(公告)号：US12162908B2

公开(公告)日：2024-12-10

申请号：US18346456

申请日：2023-07-03

Applicant: Donaldson Company, Inc.

Inventor： Kelli M. Luginbuhl ,  Ashutosh Chilkoti

IPC: C07K14/005 ,  C07K1/14

Abstract: The invention relates to genetically encoded fusion proteins comprised of a capture component that binds a target with high affinity and a peptide polymer, such as elastin-like polypeptides, that display phase behavior and can be used for purification. The invention further relates to methods for optimizing capture fusion proteins for individual biologic targets such that phase separation occurs under desirable conditions, such as at room temperature, lower concentrations of salt, and/or at suitable pH ranges and optimized capture domains and polypeptides with phase behavior that have been identified by the optimization methods.

公开(公告)号：US12161961B2

公开(公告)日：2024-12-10

申请号：US18198922

申请日：2023-05-18

Applicant: Donaldson Company, Inc.

Inventor： Michael J. Gustafson ,  Kurt Joscher ,  David B. Harder ,  Brian Tucker

IPC: B01D35/30 ,  B01D27/08 ,  B01D29/11 ,  B01D29/13 ,  B01D29/21 ,  B01D35/00 ,  B01D35/16

Abstract: A filter cartridge includes a threaded sleeve having a seal holder recess and seal member. The filter cartridge is for removably threading onto a filter head that includes threads for connection to the filter cartridge by way of the threaded sleeve. The filter head includes a ramp that engages the seal member to form a seal. The force needed to make the seal is a torque of less than 10 N-m.

公开(公告)号：US12145094B2

公开(公告)日：2024-11-19

申请号：US18217302

申请日：2023-06-30

Applicant: Donaldson Company, Inc.

Inventor： Philip Edward Johnson ,  Jonathan G. Parsons ,  John K. Falk, III

IPC: B01D46/00 ,  B01D29/15 ,  B01D29/19 ,  B01D46/24 ,  B01D46/52 ,  B01D46/58 ,  B01D46/71

Abstract: A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. A support structure supports the filter media and is operably oriented in the interior volume. The support structure extends from the first opposing interior face to the second opposing interior face. The support structure is provided to extend less than a full extension between the first end cap and second end cap.

公开(公告)号：US20240359124A1

公开(公告)日：2024-10-31

申请号：US18664910

申请日：2024-05-15

Applicant: Donaldson Company, Inc.

Inventor： Daniel E. Adamek ,  Scott M. Brown ,  Mark A. Sala

IPC: B01D46/52

CPC classification number: B01D46/526 ,  B01D46/527

Abstract: Embodiments include an air filtration media element comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.