公开(公告)号：US1343182A

公开(公告)日：1920-06-08

申请号：US1431315

申请日：1915-03-15

Applicant: UNITED FILTERS CORP

Inventor： SWEETLAND ERNEST J

IPC: B01D29/00

CPC classification number: B01D29/41 ,  B01D2201/301 ,  B01D2201/309

公开(公告)号：US970650A

公开(公告)日：1910-09-20

申请号：US1908468649

申请日：1908-12-21

Applicant: SCHULTZ REINHARD J

Inventor： SCHULTZ REINHARD J

CPC classification number: B01D24/16 ,  B01D24/005 ,  B01D2201/301

公开(公告)号：US12097449B2

公开(公告)日：2024-09-24

申请号：US17424767

申请日：2019-12-06

Applicant: Larry Schewitz

Inventor： Larry Schewitz

IPC: B01D25/02

CPC classification number: B01D25/02 ,  B01D2201/301 ,  B01D2201/4038 ,  B01D2201/4053

Abstract: A modular filter element frame (10) and a filter element frame assembly (100, 150) are disclosed. The filter element frame (10) has an elongate body (12) with a central bore (14) extending axially through the body. In cross-section the body has at least three smooth-ended lobes (16) that extend radially therefrom. The lobes are angularly spaced about the central bore such that a longitudinally extending channel (18) is formed along the body between adjacent lobes. Each channel has a plurality of longitudinally spaced apertures (20) extending into the central bore. Axially outer ends (24, 28) of the body are adapted to enable axial stacking thereof with like modular filter element frames to cooperatively form a filter element frame assembly (100, 150) with a required axial length. The assembly may receive a filter sleeve such that the sleeve extends at least partially along an outer periphery thereof.

公开(公告)号：US12048889B2

公开(公告)日：2024-07-30

申请号：US17239824

申请日：2021-04-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Maciej Żak ,  Zuzanna Jamroz

IPC: B01D35/30

CPC classification number: B01D35/30 ,  B01D2201/291 ,  B01D2201/301

Abstract: A filter assembly for a servo valve. The filter assembly has a filter body defining a chamber; a first end cap having a first fluid outlet at a first end of the filter body and a second end cap having a second fluid outlet at a second end of the filter body. A flow restrictor restricts fluid flow between the filter body and each of the first and second fluid outlets. A spacer in the chamber spaces the first end cap from the second end cap.

公开(公告)号：US12042752B2

公开(公告)日：2024-07-23

申请号：US17082827

申请日：2020-10-28

Applicant: KX Technologies LLC

Inventor： Stephen P. Huda ,  Michael J. Sherman ,  Steven J. Haehn ,  Erik R. Klimpel

IPC: B01D35/14 ,  B01D29/96 ,  B01D35/30

CPC classification number: B01D35/14 ,  B01D29/96 ,  B01D35/30 ,  B01D35/306 ,  B01D2201/301 ,  B01D2201/302 ,  B01D2201/305 ,  B01D2201/4053 ,  B01D2201/4061 ,  B01D2201/4076

Abstract: A filter assembly for fluid filtration having a push-activated lock and release mechanism. A push filter design activates a floating key lock upon insertion and extraction, where the filter key may be used simultaneously as a lock and as an identifier for particular filter attributes. The filter base may be situated inline, and in fluid communication, with influent and effluent piping, such as within a refrigerator. The filter housing assembly may be attached to, and removed from, the filter base by a push-actuated release. Upon insertion, the filter key shifts the filter lock longitudinally to receive interlocking segments. Upon extraction, the same axial push shifts the filter lock further to align the interlocking fingers within gaps that allow for easy extraction. The specific key lock design allows a user to identify and match certain filter configurations received by the mechanical support, and reject other filter configurations.

公开(公告)号：US20240133111A1

公开(公告)日：2024-04-25

申请号：US18535596

申请日：2023-12-11

Applicant: Hengst SE

Inventor： Andreas Stephan ,  Henning Tillmanns ,  Marcus Wegmann ,  Gunter Mathy ,  Markus Lüersmann ,  Tom Klaver ,  Martin Heitjans

IPC: D06F39/10 ,  B01D29/35 ,  B01D29/54 ,  B01D29/58 ,  B01D29/64 ,  B01D29/82 ,  B01D35/153 ,  B01D35/30 ,  C02F1/00 ,  D06F39/08

CPC classification number: D06F39/10 ,  B01D29/35 ,  B01D29/54 ,  B01D29/58 ,  B01D29/6415 ,  B01D29/824 ,  B01D35/153 ,  B01D35/30 ,  C02F1/001 ,  D06F39/085 ,  B01D2201/301 ,  B01D2201/325 ,  C02F2103/002

Abstract: A microplastic filter (also referred herein as fluid filter) for a washing machine has a filter housing, a first filter screen, a second filter screen, an inlet opening 16, and an outlet opening. The inlet and outlet openings communicate with each other through the first filter screen to define a direction of fluid flow. The first filter chamber has a retentate outlet, is particularly easy to handle if the second filter screen is arranged in a cavity of the filter housing, the inlet and outlet openings communicate with each other through the second filter screen, and the retentate outlet is arranged on a side of the second filter screen that faces the fluid flow.

公开(公告)号：US20240075413A1

公开(公告)日：2024-03-07

申请号：US18502769

申请日：2023-11-06

Applicant: Hengst SE

Inventor： Wilhelm Ardes

IPC: B01D27/08

CPC classification number: B01D27/08 ,  B01D2201/301 ,  B01D2201/34

Abstract: A filter cartridge configured to be removably inserted into a space of a filter housing that has a housing socket and a housing cover with a sealing surface facing inwards. The filter cartridge has a filter element forming a fluid channel with a longitudinal axis, a front end, and a rear end, as well as a connector element with a peripheral surface that provides for an increased filter area, if the peripheral surface includes a first ring surface and a second ring surface (which are plain bearing surfaces) and if a gasket is movably supported in a first axial position on the first ring surface, thereby enabling a translation of the gasket in a first direction to a second axial position onto the second ring surface.

公开(公告)号：US20230415080A1

公开(公告)日：2023-12-28

申请号：US18248810

申请日：2021-10-14

Applicant: COWAY CO., LTD.

Inventor： Hee Do JUNG ,  Chan Jung PARK ,  Woong JUNG ,  Hyun Goo KIM ,  Jong Hwan LEE ,  Yoo Won OH

IPC: B01D35/30 ,  B01D29/13 ,  C02F1/00

CPC classification number: B01D35/306 ,  B01D29/13 ,  C02F1/003 ,  B01D2201/301 ,  C02F2307/10

Abstract: A water purifier includes: a filter module having filters filtering raw water to provide purified water, and a filter connector having a filter connection passage allowing the filters to communicate with each other; and a filter housing having an open top and providing a filter accommodating space accommodating the filter module. The filter housing includes a filter fixture that is detachably coupled to one side of the filter connector, the filter fixture providing a flow path supplying the raw water to the filter module or discharging the purified water from the filter module to an outside. When the filter module accommodated in the filter accommodating space is coupled to the filter fixture, a separation distance between the filter connector and an inner wall of the filter housing facing the other side of the filter connector may be greater than an overlapping length of the filter connector and the filter fixture.

公开(公告)号：US11839844B2

公开(公告)日：2023-12-12

申请号：US17342121

申请日：2021-06-08

Applicant: Donaldson Company, Inc.

Inventor： Mirko Massara ,  Stefano Bertelli ,  Alessandro Torresani ,  Fabrizio Buratto ,  Isacco Pavanelli ,  Miloslav Krystufek ,  Luca Ghisu ,  John K. Aune ,  Gert Willems

IPC: B01D35/30 ,  B01D29/33 ,  B01D35/027

CPC classification number: B01D35/306 ,  B01D29/33 ,  B01D35/027 ,  B01D2201/0461 ,  B01D2201/295 ,  B01D2201/301 ,  B01D2201/4092

Abstract: A filter assembly is disclosed comprising a filter cartridge, a filter housing end part, and a filter housing main part, said filter housing main part being adapted for receiving said filter cartridge and for being connected to the housing end part by screwing, wherein



said filter housing main part comprises a first longitudinal axis and a main opening, said main opening being defined by a first end portion, said first end portion comprising an upper, interrupted rim and a first threaded portion arranged below said upper rim;
said first end portion comprising a recess arrangement comprising one or more axially extending recesses, said one or more axially extending recesses at least partially interrupting said first threaded portion;
said filter cartridge comprises a second longitudinal axis and a first end cap, said first end cap comprising a central portion and a radial extension arrangement comprising one or more radial extensions extending radially away from said central portion; and
wherein said radial extension arrangement is adapted for being receivable or received by said recess arrangement; and associated cartridges.

公开(公告)号：US20230364536A1

公开(公告)日：2023-11-16

申请号：US17742555

申请日：2022-05-12

Applicant: Alexander Tothfalusi

Inventor： Alexander Tothfalusi

IPC: B01D35/157 ,  B01D29/15 ,  B01D29/66 ,  B01D29/56 ,  B01D35/30 ,  B01D35/16 ,  C02F1/00

CPC classification number: B01D35/1573 ,  B01D29/15 ,  B01D29/66 ,  B01D29/56 ,  B01D35/30 ,  B01D35/16 ,  C02F1/001 ,  B01D2201/309 ,  B01D2201/165 ,  B01D2201/301 ,  C02F2103/42

Abstract: A swimming pool backwash filtration device for filtering backwash includes a house. The house has an interior defining a space for a filter to be stored within. The house has an inlet surface and an outlet surface where the inlet surface has an inlet conduit. A y-valve comprises an intake conduit and a pair of exit conduits. The intake conduit is in fluid communication with a pump and a debris filter of a swimming pool. The pair of exit conduits includes a backwash exit conduit and a pool exit conduit. The pool exit conduit is in fluid communication with the inlet conduit of the house.