# US 11,992,799 B2 · Compressor system and filter housing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,799 B2 - Document ID: US11992799B2 - Status: Granted - Kind: B2 - Application number: 17/991,929 - Filed: 2022-11-22 - Published: 2023-03-23 - Granted: 2024-05-28 - Earliest claimed: 2018-04-19 - Assignees: Ingersoll-Rand Industrial U.S., Inc. - Applicants: Ingersoll-Rand Industrial U.S., Inc. - Inventors: Matthew Charles Wagenhauser; Subodh Kumar; Christopher Leamon; James David Gillon - Web page: https://patentgrep.com/patent/US11992799B2 ## CPC - B01D 46/4227: {Manipulating filters or filter elements, e.g. handles or extracting tools} - F04B 39/16: Filtration; Moisture separation - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/24: Particle separators, e.g. dust precipitators, using rigid hollow filter bodies - B01D 46/88: Replacing filter elements - B01D 2265/028: Snap, latch or clip connecting means - B01D 2271/022: Axial sealings - B01D 2273/14: Filters which are moved between two or more positions, e.g. by turning, pushing - 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) - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) ## Abstract A compressor system includes a compression module having an inlet for receiving air; and a filter housing in fluid communication with the compression module. The filter housing is constructed to house a filter, the filter having a sealing feature disposed at a first end of the filter and having an engagement feature disposed at a second end of the filter opposite the first end. The filter housing includes a trap door constructed to contact the engagement feature, and constructed to drive the engagement feature in a direction parallel to an axis of the filter toward the sealing feature and urge the sealing feature into sealing engagement with the filter housing. ## Claims ### Claim 1 A compressor system, comprising: a compression module having an inlet for receiving air; and a filter housing in fluid communication with the compression module, the filter housing configured to receive at least one filter, the at least one filter having a sealing feature disposed at a first end of the at least one filter and having an engagement feature disposed at a second end of the at least one filter opposite the first end, the filter housing configured to contact the engagement feature and to drive the engagement feature toward the sealing feature and urge the sealing feature into sealing engagement with the filter housing. ### Claim 2 (depends on 1) The compressor system of claim 1, wherein the sealing feature comprises a face seas and, the first end includes a first end face, and wherein the face seal comprises a deformable sealing ring protruding from and integral with the first end face. ### Claim 3 (depends on 2) The compressor system of claim 2, wherein the second end includes a second end face; and wherein the engagement feature protrudes from the second end face. ### Claim 4 (depends on 3) The compressor system of claim 3, wherein the second end face is recessed within the second end. ### Claim 5 (depends on 3) The compressor system of claim 3, wherein the engagement feature comprises a frustum or a cone. ### Claim 6 (depends on 5) The compressor system of claim 5, wherein a trap door includes a driving surface; wherein the engagement feature comprises an engagement surface spaced apart from the second end face; and wherein the driving surface is configured to apply a force against the engagement surface and drive the filter into a seated position by closing the trap door. ### Claim 7 (depends on 6) The compressor system of claim 6, wherein the driving surface is configured to apply a force against the engagement surface and drive the filter against the filter housing and compress the sealing feature against the filter housing and/or press the sealing feature into the filter housing. ### Claim 8 (depends on 6) The compressor system of claim 6, wherein the trap door comprises a collar extending therefrom; wherein the driving surface is recessed within the collar; wherein the collar encompasses the protruding engagement feature when the trap door is closed; and wherein the sealing feature is compressed against the filter housing or pressed into the filter housing when the filter is in the seated position. ### Claim 9 (depends on 1) The compressor system of claim 1, wherein the trap door is configured to lever the filter against the filter housing and compress the sealing feature against the filter housing and/or press the sealing feature into the filter housing. ### Claim 10 (depends on 1) The compressor system of claim 1, wherein the trap door includes a hinge configured to provide leverage to compress the sealing feature and/or press the sealing filter into the filter housing. ### Claim 11 (depends on 1) The compressor system of claim 1, wherein the filter includes an internal perimeter and an external perimeter; and wherein the filter housing includes a first wall operative to fit inside of and engage the internal perimeter; and wherein the filter housing includes a second wall into which the external perimeter fits and which engages with the external perimeter. ### Claim 12 (depends on 11) The compressor system of claim 11, wherein the internal perimeter comprises an inside diameter; and wherein the first wall comprises a first ring collar; and wherein the second wall comprises a second ring collar concentric with the first ring collar. ### Claim 13 A filter housing for receiving a filter, the filter having a sealing feature disposed at a first end of the filter and having an engagement feature disposed at a second end of the filter opposite the first end, the filter housing comprising: an enclosure configured to receive the filter; and the enclosure configured to contact the engagement feature, to drive the engagement feature toward the sealing feature and urge the sealing feature into sealing engagement with the filter housing. ### Claim 14 (depends on 13) The filter housing of claim 13, wherein a trap door is configured to lever the filter against the filter housing and compress the sealing feature against the filter housing and/or press the sealing feature into the filter housing. ### Claim 15 (depends on 14) The filter housing of claim 14, wherein the trap door includes a hinge constructed to provide leverage to compress the sealing feature and/or press the sealing feature into the filter housing by closing the trap door. ### Claim 16 (depends on 13) The filter housing of claim 13, wherein the engagement feature protrudes from the filter; wherein the trap door includes a collar extending therefrom constructed to encompass the engagement feature when closed; and wherein the collar includes a driving surface recessed therein and constructed to apply a force against the engagement feature and drive the filter into a seated position by closing the trap door. ### Claim 17 A method of replacing a filter in a compressor system, comprising: inserting the filter into a filter housing of the compressor system; closing the filter housing, wherein the closing of the filter housing drives the filter into a seated position and compresses a sealing feature of the filter against the filter housing or presses the sealing feature into the filter housing. ### Claim 18 (depends on 17) The method of claim 17, further comprising opening a trap door disposed in the filter housing, wherein the opening of the trap door releases the filter from the seated position. ### Claim 19 (depends on 17) The method of claim 17, further comprising removing the filter from the filter housing. ### Claim 20 (depends on 1) The compressor system of claim 1, further comprising a pre-separator assembly disposed upstream of the filter, the pre-separator configured to separate particulates prior to entering the filter.