# US 2019/0168149 A1 · Housing and filter system having a housing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168149 A1 - Document ID: US20190168149A1 - Status: Published application - Kind: A1 - Application number: 15/832,058 - Filed: 2017-12-05 - Published: 2019-06-06 - Earliest claimed: 2017-12-05 - Assignees: Mann+Hummel GmbH - Applicants: Mann+Hummel GMBH - Inventors: Gilberto Albertini; Bruno Cesar Proenca Ribeiro; Fabio Faria de Souza; Carlos Alberto da Silva - Web page: https://patentgrep.com/patent/US20190168149A1 ## CPC - B01D 46/0004: {Details of removable closures, lids, caps or filter heads} - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/0046: {provoking a tangential stream (B01D46/0045 takes precedence)} - B01D 46/2411: {Filter cartridges} - F02M 35/0203: {by using clamps, catches, locks or the like, e.g. for disposable plug-in filter cartridges} - F02M 35/024: using filters, e.g. moistened (F02M35/026 takes precedence; cleaning of the filtering material F02M35/08) - B01D 2201/4015: Bayonet connecting means - B01D 2201/4076: Anti-rotational means - B01D 2265/021: Anti-rotational means - B01D 2265/022: Bayonet connecting means - B01D 2265/027: Quick closing means for, e.g. filter heads, caps, maintenance openings - B01D 2265/028: Snap, latch or clip connecting means - 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) - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF ## Abstract A housing (110), in particular for receiving a filter element (10) for filtering of a fluid, comprising along a longitudinal axis (A) a housing body (112), and a mating housing cover (114). A push-twist structure (120) is provided for connecting the housing body (112) and the housing cover (114) by way of a push-twist mount, the push-twist structure (120) having mating push-twist elements (122, 124) on the housing body (112) and the housing cover (114). An anti-rotation lock structure (160) is provided for securing the push-twist structure (120) in its closed position in an anti-rotation lock manner. The anti-rotation lock structure (160) provides at least one anchor portion (162) arranged along the circumference of the outer one of the housing body (112) and the housing cover (114). A clip element (170) is provided for connecting to the anchor portion (162). The clip element (170) and the anchor portions (162) are configured so that the clip element (170) is to be mounted to the anchor portion (162) in a predominantly circumferential mounting direction. ## Claims ### Claim 1 A housing (110), in particular for receiving a filter element (10) for filtering of a fluid, comprising along a longitudinal axis (A) a housing body (112); a mating housing cover (114); wherein a push-twist structure (120) is provided for connecting the housing body (112) and the housing cover (114) by way of a push-twist mount, the push-twist structure (120) having mating push-twist elements (122, 124) on the housing body (112) and the housing cover (114); wherein an anti-rotation lock structure (160) is provided for securing the push-twist structure (120) in its closed position in an anti-rotation lock manner; wherein the anti-rotation lock structure (160) provides at least one anchor portion (162) arranged along the circumference of the outer one of the housing body (112) and the housing cover (114); wherein a clip element (170) is provided for connecting to the anchor portion (162); and wherein the clip element (170) and the anchor portions (162) are configured so that the clip element (170) is to be mounted to the anchor portion (162) in a predominantly circumferential mounting direction. ### Claim 2 (depends on 1) The housing according to claim 1, wherein a first set of push-twist elements (122) of the push-twist structure (120) includes at least one catching receptacle (140) for receiving at least one catching detent (130). ### Claim 3 (depends on 2) The housing according to claim 2, wherein the at least one catching receptacle (140) is configured as an axial notch (144) protruding in radial direction from the surface shell of the outer one of the housing body (112) and the housing cover (114). ### Claim 4 (depends on 2) The housing according to claim 2, wherein a second set of push-twist elements (124) includes at least one catching detent (130) ### Claim 5 (depends on 2) The housing according to claim 2, wherein the at least one catching receptacle (140) provides an opening (146) in circumferential direction so that a transverse leg (132) of the catching detent (130) protrudes in circumferential direction when the push-twist structure (120) is in its locked state. ### Claim 6 (depends on 2) The housing according to claim 2, wherein the anti-rotation lock structure (160) comprises at least one rib (164) extending in axial direction and being arranged at the inner one of the housing body (112) and the housing cover (114), the at least one rib (164) being arranged in a distance to the at least one catching detent (130) of the push-twist structure (120) on the circumference of the inner one of the housing body (112) and the housing cover (114). ### Claim 7 (depends on 6) The housing according to claim 6, wherein two or more ribs (164) and catching detents (130) are alternatingly arranged along the circumference of the inner one of the housing body (112) and the housing cover (114). ### Claim 8 (depends on 6) The housing according to claim 6, wherein the clip element (170) is provided with a catching portion (172) for negotiating with the at least one rib (164) of the anti-rotation lock structure (160) and a lever portion (174) for negotiating with one of the anchor portions (162) of the anti-rotation lock structure (160). ### Claim 9 (depends on 1) The housing according to claim 1, wherein the outer one of the housing body (112) and the housing cover (114) provides a rim (116) having at least one sequence in circumferential direction of an axial cut-out portion (150) followed by one anchor portion (162) followed by one catching receptacle (140). ### Claim 10 (depends on 9) The housing according to claim 9, wherein at least two sequences of an axial cut-out portion (150) followed by one anchor portion (162) followed by one catching receptacle (140) are provided in circumferential direction. ### Claim 11 (depends on 1) The housing according to claim 1, wherein the anchor portion (162) is made in one piece with the surface shell of the outer one of the housing body (112) and the housing cover (114). ### Claim 12 A filter system (100) having a housing (110) according to any one of the preceding claims, the housing (110) being configured for receiving a filter element (10) for filtering of a fluid, comprising along a longitudinal axis (A) a housing body (112); a mating housing cover (114); a fluid outlet (102) for evacuating the filtered fluid from the housing (110); a fluid inlet (104) for feeding the raw fluid into the housing (110); wherein a push-twist structure (120) is provided for connecting the housing body (112) and the housing cover (114) by way of a push-twist mount, the push-twist structure (120) having mating push-twist elements (122, 124) on the housing body (112) and the housing cover (114); wherein an anti-rotation lock structure (160) is provided for securing the push-twist structure (120) in its closed position in an anti-rotation lock manner; wherein the anti-rotation lock structure (160) provides at least one anchor portion (162) arranged along the circumference of the outer one of the housing body (112) and the housing cover (114); wherein a clip element (170) is provided for connecting to the anchor portion (162); and wherein the clip element (170) and the anchor portions (162) are configured so that the clip element (170) is to be mounted to the anchor portion (162) in a predominantly circumferential mounting direction. ### Claim 13 (depends on 12) The filter system according to claim 12, wherein the fluid inlet (104) is accommodated in the housing cover (114). ### Claim 14 (depends on 12) The filter system according to claim 12, wherein the fluid outlet (102) is accommodated in the housing body (112).