# US 10,369,502 B2 · Spin-on filter using snap-fit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,502 B2 - Document ID: US10369502B2 - Status: Granted - Kind: B2 - Application number: 15/403,044 - Filed: 2017-01-10 - Published: 2018-07-12 - Granted: 2019-08-06 - Earliest claimed: 2017-01-10 - Assignees: MANN+HUMMEL Filtration Technology Group Inc. - Applicants: MANN+HUMMEL Filtration Technology Group Inc. - Inventors: David Brent Harrelson; James Michael Glazewski; Matthew Robert Hudson - Web page: https://patentgrep.com/patent/US10369502B2 ## CPC - B01D 35/30: Filter housing constructions - B01D 27/06: with corrugated, folded or wound material - B01D 27/08: Construction of the casing - B01D 29/21: with corrugated, folded or wound sheets - F01M 11/03: Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means (filters B01D) - F02M 37/32: characterised by filters or filter arrangements - B01D 2201/316: Standpipes - B01D 2201/4084: Snap or Seeger ring 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) - F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF ## Abstract A spin-on filter includes a housing and a cover plate defining a central opening. The housing has a closed end a circumferential wall extending from the closed end to an open end and circumscribes an internal chamber configured to receive a filter element. The cover plate includes a substantially planar outer surface extending radially outward from the central opening to an outer circumferential wall. The spin-on filter also includes a series of engagement tabs integrally formed with one of the outer circumferential wall of the cover plate or the interior wall of the housing. Each engagement tab is configured to mate with corresponding ones of a series of receiving slots formed within the other one of the outer circumferential wall of the cover plate or the interior wall of the housing when the cover plate and the housing are axially pressed together to secure the cover plate to the open end of the housing. ## Claims ### Claim 1 A spin-on filter comprising: a housing having a closed end and a circumferential interior wall axially extending from the closed end to an open end and circumscribing an internal chamber configured to receive a filter element; a cover plate defining a central opening, the cover plate including a substantially planar outer surface extending radially outward from the central opening to an outer circumferential wall; and a series of engagement tabs integrally formed with one of the outer circumferential wall of the cover plate or the interior wall of the housing, each engagement tab configured to mate with a corresponding one of a series of receiving slots formed within the other one of the outer circumferential wall of the cover plate or the interior wall of the housing when the cover plate and the housing are axially pressed together to secure the cover plate to the open end of the housing, wherein each engagement tab comprises: an axial portion extending axially from a proximal end to a distal end, the axial portion disposed radially inward from an outer peripheral edge of the outer circumferential wall of the cover plate; and an interference portion protruding radially away from the distal end of the axial portion, the interference portion configured to mate with the corresponding receiving slot to prevent the cover plate and the housing from moving relative to one another when the cover plate and the housing are axially pressed together. ### Claim 2 (depends on 1) The spin-on filter of claim 1, wherein the interior wall at the open end of the housing comprises a greater diameter than an outer circumferential edge of the outer circumferential wall, the interior wall at the open end of the housing enclosing at least a portion of the outer circumferential wall of the cover plate when the cover plate is secured to the open end of the housing. ### Claim 3 (depends on 1) The spin-on filter of claim 1, wherein each engagement tab mates with the corresponding receiving slot at a corresponding mating location within the internal chamber of the housing, the mating location obstructed from view by the outer surface of the cover plate and an exterior wall of the housing, the exterior wall disposed on an opposite side of the housing than the interior wall. ### Claim 4 (depends on 1) The spin-on filter of claim 1, wherein each receiving slot is associated with a corresponding axial groove having a smaller radial depth than the receiving slot, the axial groove configured to axially guide the interference portion of the corresponding engagement tab into mating engagement with the receiving slot when the cover plate and the housing are axially pressed together. ### Claim 5 (depends on 4) The spin-on filter of claim 4, wherein the axial portion of each engagement tab is configured to flex radially away from the corresponding receiving slot while the interference portion axially guides along the corresponding axial groove. ### Claim 6 (depends on 1) The spin-on filter of claim 1, wherein the proximal end of the axial portion is integrally formed with the outer circumferential wall of the cover plate, the distal end of the axial portion is disposed further from the outer surface of the cover plate than the proximal end, and the interference portion protrudes radially outward from the distal end of the axial portion and toward the corresponding receiving slot formed within the interior wall of the housing. ### Claim 7 (depends on 1) The spin-on filter of claim 1, wherein the proximal end of the axial portion is integrally formed with the interior wall of the cover plate, the distal end of the axial portion is disposed closer to the outer surface of the cover plate than the proximal end, and the interference portion protrudes radially outward from the distal end of the axial portion toward the corresponding receiving slot formed within an inner peripheral edge of the outer circumferential wall of the cover plate. ### Claim 8 (depends on 1) The spin-on filter of claim 1, wherein the interior wall of the housing comprises: a wide section proximate to the open end of the housing and enclosing at least a portion of the outer circumferential wall of the cover plate when the cover plate is secured to the open end of the housing; and a narrow section axially extending between the wide section and the closed end of the housing, the narrow section comprising a smaller diameter than the wide section and axially spaced apart from the open end of the housing by an axial distance of the wide section. ### Claim 9 (depends on 8) The spin-on filter of claim 8, wherein the series of receiving slots are formed in the narrow section of the interior wall, each receiving slot associated with a corresponding axial groove formed in the narrow section of the interior wall and axially extending from the wide section to the corresponding receiving slot, each axial groove disposed radially inward from the wide section of the interior wall. ### Claim 10 A spin-on filter comprising: a housing having a closed end and a circumferential interior wall axially extending from the closed end to an open end and circumscribing an internal chamber configured to receive a filter element; and a cover plate including an outer circumferential wall surrounding a central opening, the cover plate having a series of engagement tabs configured to axially extend into the internal chamber of the housing and mate with corresponding ones of a series of receiving slots formed within the interior wall of the housing when the cover plate and the housing are axially pressed together to secure the cover plate to the open end of the housing, wherein each engagement tab comprises: an axial portion axially extending from a proximal end integrally formed with the outer circumferential wall or an inner surface of the cover plate to a distal end, the inner surface of the cover plate radially extending between the central opening and an inner peripheral edge of the outer circumferential wall; and an interference portion extending radially outward from the distal end of the axial portion, wherein the interior wall of the housing comprises: a wide section proximate to the open end of the housing and enclosing at least a portion of the outer circumferential wall of the cover plate when the cover plate is secured to the open end of the housing; and a narrow section axially extending between the wide section and the closed end of the housing, the narrow section comprising a smaller diameter than the wide section and axially spaced apart from the open end of the housing by an axial distance of the wide section, and wherein the series of receiving slots are formed within the narrow section of the interior wall, each receiving slot configured to receive the interference portion of the corresponding engagement tab to prevent the cover plate and the housing from moving relative to one another when the cover plate and the housing are axially pressed together. ### Claim 11 (depends on 10) The spin-on filter of claim 10, wherein each receiving slot is associated with a corresponding axial groove formed in the narrow section of the interior wall, the axial groove axially extending from the wide section to the corresponding receiving slot, each axial groove disposed radially inward from the wide section of the interior wall and defining an axial length substantially equal to an axial length of the axial portion of the corresponding engagement tab. ### Claim 12 (depends on 10) The spin-on filter of claim 10, wherein the inner peripheral edge of the outer circumferential wall defines a diameter substantially equal to a diameter of the narrow section of the interior wall. ### Claim 13 (depends on 10) The spin-on filter of claim 10, wherein the central opening comprises internal threads adapted to threadingly engage with corresponding threads of a standpipe assembly. ### Claim 14 (depends on 10) The spin-on filter of claim 10, wherein the cover plate further comprises: a substantially planar outer surface radially extending between the central opening and an outer peripheral edge of the outer circumferential wall, wherein the inner surface is substantially planar and disposed on an opposite side of the cover plate than the outer surface and opposing the internal chamber when the cover plate is secured to the housing, the inner surface radially extending between the central opening and the inner peripheral edge of the outer circumferential wall; and one or more inlet ports formed through the inner and outer surfaces of the cover plate. ### Claim 15 (depends on 14) The spin-on filter of claim 14, wherein the cover plate further comprises an axial collar circumscribing the central opening an extending axially away from at least the inner surface. ### Claim 16 (depends on 10) The spin-on filter of claim 10, wherein the inner peripheral edge of the outer circumferential wall circumscribes the central opening. ### Claim 17 A method of manufacturing a spin-on filter, the method comprising: inserting a filter element into an internal chamber of a housing, the housing including a closed end and a circumferential interior wall axially extending from the closed end to an open end and circumscribing the internal chamber; positioning a cover plate in alignment with the open end of the housing, the cover plate having a series engagement tabs configured to extend into the internal chamber of the housing when the cover plate is aligned with the open end of the housing; and axially pressing the cover plate and the housing together to cause each engagement tab to mate with a corresponding one of a series of receiving slots formed within the interior wall of the housing, the mating between the engagement tabs and the receiving slots securing the cover plate to the open end of the housing, wherein a radial seal is disposed between an outer circumferential edge of the cover plate and the interior wall of the housing to provide a fluid tight seal between the outer circumferential edge of the cover plate and the interior wall of the housing when the cover plate secures to the open end of the housing. ### Claim 18 A spin-on filter comprising: a housing having a closed end and a circumferential interior wall axially extending from the closed end to an open end and circumscribing an internal chamber configured to receive a filter element; a cover plate defining a central opening, the cover plate including a substantially planar outer surface extending radially outward from the central opening to an outer circumferential wall; and a series of engagement tabs integrally formed with the outer circumferential wall of the cover plate, each engagement tab configured to mate with a corresponding one of a series of receiving slots formed within the interior wall of the housing when the cover plate and the housing are axially pressed together to secure the cover plate to the open end of the housing, wherein the interior wall of the housing comprises: a wide section proximate to the open end of the housing and enclosing at least a portion of the outer circumferential wall of the cover plate when the cover plate is secured to the open end of the housing; and a narrow section axially extending between the wide section and the closed end of the housing, the narrow section comprising a smaller diameter than the wide section and axially spaced apart from the open end of the housing by an axial distance of the wide section, and wherein the series of receiving slots are formed in the narrow section of the interior wall, each receiving slot associated with a corresponding axial groove formed in the narrow section of the interior wall and axially extending from the wide section to the corresponding receiving slot, each axial groove disposed radially inward from the wide section of the interior wall. ### Claim 19 A spin-on filter comprising: a housing having a closed end and a circumferential interior wall axially extending from the closed end to an open end and circumscribing an internal chamber configured to receive a filter element; and a cover plate including an outer circumferential wall surrounding a central opening, the cover plate having a series of engagement tabs configured to axially extend into the internal chamber of the housing and mate with corresponding ones of a series of receiving slots formed within the interior wall of the housing when the cover plate and the housing are axially pressed together to secure the cover plate to the open end of the housing, wherein the cover plate further comprises: a substantially planar outer surface radially extending between the central opening and an outer peripheral edge of the outer circumferential wall; a substantially planar inner surface disposed on an opposite side of the cover plate than the outer surface and opposing the internal chamber when the cover plate is secured to the housing, the inner surface radially extending between the central opening and an inner peripheral edge of the outer peripheral wall; and one or more inlet ports formed through the inner and outer surfaces of the cover plate.