# US 12,109,522 B2 · Omni-directional particulate extraction inlet > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,522 B2 - Document ID: US12109522B2 - Status: Granted - Kind: B2 - Application number: 17/484,774 - Filed: 2021-09-24 - Published: 2023-04-13 - Granted: 2024-10-08 - Earliest claimed: 2021-09-24 - Assignees: Kidde Technologies, Inc. - Applicants: Kidde Technologies, Inc. - Inventors: Eli Baldwin; Mark P. Fazzio; James Allen Varnell; Benjamin Jackson; Harlan Hagge - Web page: https://patentgrep.com/patent/US12109522B2 ## CPC - B01D 45/08: by impingement against baffle separators - G01N 1/2273: {Atmospheric sampling} - A62C 37/00: Control of fire-fighting equipment (heat-sensitive devices G01K) - A62C 99/009: {Methods or equipment not provided for in groups A62C99/0009 - A62C99/0081} - G01N 1/2208: {with impactors} - G01N 15/06: Investigating concentration of particle suspensions (by weighing G01N5/00; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10) - B01D 2221/10: Separation devices for use in medical, pharmaceutical or laboratory applications, e.g. separating amalgam from dental treatment residues - G01N 15/075: by optical 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) - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10) ## Abstract A flow control device is including a tubular body including a tubular wall with an inner surface, an outer surface, and one or more openings extending from the outer surface to the inner surface through the tubular wall; a faired body encircling the tubular body, the faired body including a radially inner surface and a radially outer surface; and a flow shield encircling the faired body, the flow shield including a radially inward surface and a radially outward surface, the radially inward surface being in a facing spaced relationship with the radially outer surface of the faired body defining a passageway therebetween, wherein the passageway is fluidly connected to the one or more openings. ## Claims ### Claim 1 A flow control device comprising: a tubular body comprising a tubular wall with an inner surface, an outer surface, and one or more openings extending from the outer surface to the inner surface through the tubular wall; a faired body encircling the tubular body, the faired body comprising a radially inner surface and a radially outer surface; and a flow shield encircling the faired body, the flow shield comprising a radially inward surface and a radially outward surface, the radially inward surface being in a facing spaced relationship with the radially outer surface of the faired body defining a passageway therebetween, wherein the passageway is fluidly connected to the one or more openings; wherein: the device includes a housing and a vacuum source coupled to an outlet of the housing; the tubular body extends from a first tubular end to a second tubular end that are opposite each other, the second tubular end is connected to the housing; the faired body is operationally connected to the tubular body proximate or at the first tubular end and located at a first distance away from the first tubular end, and the openings in the tubular body are located between the faired body and the first tubular end; and the flow shield is operably connected to the tubular body proximate or at the first tubular end and covers the first tubular end, and the openings within the tubular body are located between the flow shield, and the faired body and encircles the faired body and the tubular wall. ### Claim 2 (depends on 1) The flow control device according to claim 1, further comprising: an inlet defined between the radially inward surface of the flow shield and the radially outer surface of the faired body, wherein the passageway extends from the inlet to the one or more openings. ### Claim 3 (depends on 2) The flow control device according to claim 2, wherein the inlet is an omnidirectional orifice extending a full three hundred and sixty degrees around the faired body. ### Claim 4 (depends on 1) The flow control device according to claim 1, wherein the passageway has a rotationally axisymmetric bell shaped curve. ### Claim 5 (depends on 1) The flow control device according to claim 1, wherein the faired body has a bell shape and is rotationally axisymmetric. ### Claim 6 (depends on 1) The flow control device according to claim 1, wherein the flow shield has a bell shape and is rotationally axisymmetric. ### Claim 7 (depends on 1) The flow control device according to claim 1, wherein the faired body has a first faired body end and a second faired body end located opposite the first faired body end, and wherein the radially outer surface of the faired body has a first outer diameter proximate or at the first faired body end and the radially outer surface of the faired body has a second outer diameter proximate or at the second faired body end, the second outer diameter being greater than the first outer diameter. ### Claim 8 (depends on 7) The flow control device according to claim 7, wherein an outer diameter of the radially outward surface increases exponentially from the first outer diameter to the second outer diameter. ### Claim 9 (depends on 1) The flow control device according to claim 1, wherein the flow shield has a first flow shield end and a second flow shield end located opposite the first flow shield end, and wherein the radially inward surface of the flow shield has a first inner diameter proximate or at a first distance away from the first flow shield end and the radially inward surface of the flow shield has a second inner diameter proximate or at the second flow shield end, the second inner diameter being greater than the first inner diameter. ### Claim 10 (depends on 9) The flow control device according to claim 9, wherein an inner diameter of the radially inward surface increases exponentially from the first inner diameter to the second inner diameter. ### Claim 11 (depends on 1) The flow control device according to claim 1, wherein the tubular body further comprises a passageway portion defined by the inner surface, and wherein a transition from the passageway to the passageway portion of the tubular body is configured to turn a particle-laden gas one hundred and eighty degrees. ### Claim 12 (depends on 1) The flow control device according to claim 1, wherein the faired body further include one or more channel guides extending away from the radially outer surface of the faired body and toward the radially inward surface of the flow shield. ### Claim 13 (depends on 1) The flow control device according to claim 1, wherein the tubular body further comprises a passageway portion defined by the inner surface, and wherein a transition from the passageway to the passageway portion of the tubular body is configured to turn a particle-laden gas about-ninety degrees. ### Claim 14 A method of fabricating a flow control device comprising: forming a tubular body comprising a tubular wall with an inner surface, an outer surface, and one or more openings extending from the outer surface to the inner surface through the tubular wall; forming a faired body comprising a radially inner surface, a radially outer surface, and a channel portion defined by the radially inner surface within the faired body; forming a flow shield the flow shield comprising a radially inward surface, a radially outward surface, and an interior chamber defined by the radially inward surface within the flow shield; arranging the faired body at least partially within the flow shield such that the radially inward surface is in a facing spaced relationship with the radially outer surface of the faired body defining a passageway therebetween; and arranging the tubular body at least partially within the channel portion such that the passageway is fluidly connected to the one or more openings; wherein: the device includes a housing and a vacuum source coupled to an outlet of the housing; the tubular body extends from a first tubular end to a second tubular end that are opposite each other, the second tubular end is connected to the housing; the faired body is operationally connected to the tubular body proximate or at the first tubular end and located at a first distance away from the first tubular end, and the openings in the tubular body are located between the faired body and the first tubular end; and the flow shield is operably connected to the tubular body proximate or at the first tubular end and covers the first tubular end, and the openings within the tubular body are located between the flow shield and the faired body and encircles the faired body and the tubular wall. ### Claim 15 (depends on 14) The method of claim 14, further comprising: forming a passageway portion within the tubular body to a direct particle-laden gas from the passageway through the one or more openings into the passageway portion and to an inlet of a particle concentration measurement sensor. ### Claim 16 (depends on 15) The method of claim 15, wherein the particle-laden gas includes particles of fire suppression agent suspended in a gas and the particle concentration measurement sensor measures a concentration of the fire suppression agent in the gas.