Patent SG-11201900863T-A (SG)
Title: Portable air sampler
Inventor: KOCHER NATHAN G
IPC: G01N1/28
Filed: 2017-07-19
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 22 February 2018 (22.02.2018) WIPO I PCT ill~~~~~~~~ 011101110VIIIOH olo oui olo Ho mo Imo oimIE (10) International Publication Number WO 2018/034775 Al (51) International Patent Classification: GO1N 1/22 (2006.01) GO1N 1/02 (2006.01) GO1F 1/34 (2006.01) GO1N 1/24 (2006.01) GO1F 1/76 (2006.01) GO1N 1/28 (2006.01) (21) International Application Number: PCT/US2017/042722 (22) International Filing Date: 19 July 2017 (19.07.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 29/574,405 15 August 2016 (15.08.2016) US 62/375,274 15 August 2016 (15.08.2016) US 15/243,403 22 August 2016 (22.08.2016) US (71) Applicant: VELTEK ASSOCIATES, INC. [US/US]; 15 Lee Boulevard, Malvern, Pennsylvania 19355 (US). (72) Inventors: KOCHER, Nathan G.; 261 Waltham Court, West Chester, Pennsylvania 19380 (US). VELLUTATO, Arthur L. Jr.; 10 Steeplechase Lane, Malvern, Pennsyl- vania 19355 (US). CHURCHVARA, Jeffrey; 29 Twin Pines, Downingtown, Pennsylvania 19335 (US). PHIL- LIPS, Mark A.; 336 W. Valley Forge Road, King of Prus- sia, Pennsylvania 19406 (US). (74) Agent: WEISSMAN, Peter S.; Blank Rome LLP, 1825 Eye Street NW, Washington, District of Columbia 20006 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, 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, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (54) Title: PORTABLE AIR SAMPLER 111 (57) : An air sampling device samples air in a controlled envi- ronment. The device includes a housing body having a top and a side. An opening is located at the top of the housing body. A retaining as- sembly retains a sampling device and atrium. The retaining assembly is located at the top of the housing body about the opening. A plenum has a top end and a bottom end, with the top end coupled to the top of the housing body about the opening so that the plenum is in flow com- munication with the opening. A mass flow meter has an input and an output, with the input coupled to the bottom end of the plenum and in flow communication with the bottom end of the plenum. A blower is lo- cated inside the plenum and is configured to draw air past the sampling device, through the opening, through the plenum, and through the mass flow meter. The mass flow meter detects a flow rate of air through the mass flow meter. And a controller receives the detected flow rate from the mass flow meter and controls a speed of the blower in response to the detected flow rate. The controller increases the speed of the blower if the detected flow rate is lower than a desired flow rate, and decreases the speed of the blower if the detected flow rate is higher than a desired flow rate. W O 20 18/03 4775 Al 304 122 FIG. 2 [Continued on next page] WO 2018/034775 Al OII TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))