SG11201903900YA - Composite wicks for low noise particle counting - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 11111111111111111111111111111111111111111111111111111111111111111111111111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2018/081699 Al 03 May 2018 (03.05.2018) WIP0 I PCT (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, G01N 15/06 (2006.01) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, (21) International Application Number: DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, PCT/US2017/059016 HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (22) International Filing Date: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 30 October 2017 (30.10.2017) OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (25) Filing Language: English SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (26) Publication Language: English (84) Designated States (unless otherwise indicated, for every (30) Priority Data: kind of regional protection available): ARIPO (BW, GH, 62/415,333 31 October 2016 (31.10.2016) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (71) Applicant: TSI INCORPORATED [US/US]; 500 Cardi- TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, gan Road, Shoreview, Minnesota 55126 (US). EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (72) Inventors: CALDOW, Robert; 710 Wheaton Avenue, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Roseville, Minnesota 55113 (US). MORELL, Sean; 324 TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, Oneida St., Saint Paul, Minnesota 55102 (US). FARMER, KM, ML, MR, NE, SN, TD, TG). Kenneth; 5445 Jamaca Blvd N, Lake Elmo, Minnesota _ 55042 (US). AVULA, Sreenath; 5417 Royal Hills Dr., Ar- Declarations under Rule 4.17: den Hills, Minnesota 55112 (US). — of inventorship (Rule 4.17(iv)) = (74) Agent: SCHEER, Bradley W. et al.; Schwegman Lund- Published: berg, & Woessner, PA., P.O. Box 2938, Minneapolis, Min- — with international search report (Art. 21(3)) = nesota 55402 (US). = (81) Designated States (unless otherwise indicated, for every = kind of national protection available): AE, AG, AL, AM, (54) Title: COMPOSITE WICKS FOR LOW NOISE PARTICLE COUNTING (57) : Various embodiments include composite wicks for ultra-low noise 113 condensation particle counters (CPCs). In one embodiment, a composite wick in- — op \"4 dudes a first porous material having a first pore density, with the first porous mate- I rial further having a first surface and an opposing second surface. A second porous = = material is in fluid communication with the first material and has a first sur- porous 103 Ni. r face with an area substantially the same as an area of the first surface of the first \ f porous material. The first surface of the second porous material is substantially in contact with the first surface of the first porous material. The second porous material has a pore density that is dissimilar the first pore density of the first material. The first material and the second material are configured to provide vapor from a liquid to a fluid-based particle counter. Other apparatuses are disclosed. = = = = _ = 101 11 C:r C:r 1—I GC © ,-.... 105 --- - r 107 1., f D4 -.I 2 11 © N FIG. 1 C