Patent SG-11201808974V-A (SG)
Title: Eccentric buildup detection in concrete drums
Inventor: ROBERTS MARK
IPC: B28C5/42
Filed: 2017-04-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 111111110111101110101011111010111110111011111101101110101111101111101111011111 International Bureau .... .51 jd (10) International Publication Number (43) International Publication Date ......... WO 2017/180625 Al 19 October 2017(19.10.2017) WIPO I PCT (51) International Patent Classification: (74) Agent: LEON, Craig, K.; 62 Whittemore Ave., Cam- B28C 5/42 (2006.01) bridge, MA 02140 (US). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/US2017/027011 kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (22) International Filing Date: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, 11 April 2017 (11.04.2017) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (25) Filing Language: English HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, (26) Publication Language: English MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (30) Priority Data: NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, 62/323,273 15 April 2016 (15.04.2016) US 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, (71) Applicant: VERIFI LLC [US/US]; 62 Whittemore Ave., Cambridge, MA 02140 (US). ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every (72) Inventors: ROBERTS, Mark, F.; 31 Bridges Lane, North kind of regional protection available): ARIPO (BW, GH, Andover, MA 01845 (US). GLINA, Yan; 18 Florence Av- GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, enue, Medford, MA 02155 (US). JORDAN, Richard, K.; TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, 161 Hartwell Avenue, Littleton, MA 01460 (US). GOLD- TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, STEIN, Greg, A.; 175 Beacon St Apt 210, Somerville, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, MA 02143 (US). LIVINGSTON, Howard; 118 Brad LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, Circle, Winter Haven, FL 33880 (US). TREGGER, Nath- SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, an, A.; 267 Davis Street, Northborough, MA 01532 (US). GW, KM, ML, MR, NE, SN, TD, TG). [Continued on next page] Title: ECCENTRIC BUILDUP DETECTION IN CONCRETE DRUMS (54) (57) : The present invention provides a method and system for detecting hardened concrete buildup in a mixer drum which is substantially devoid of plastic concrete. An ex- Pressure [psi] emplary method involves monitoring the hydraulic pressure 00 50 0 required to rotate the drum through at least two successive ro - 120 60 tations at constant speed, using a hydraulic pressure sensor on 400 hydraulic charge side, discharge side, or preferably both sides , ., of the hydraulic motor which turns the mixer drum; and de - 150 5 30 tecting when the pressure/time data curve indicates eccentric 200 \ \ behavior of the mixer drum, whereby an alarm or other iodic - - I ation is provided to confirm that the hardened concrete buildup in the truck is not acceptable. The buildup detection 1 kW ,f method and system of the present invention does not require the use of an automated slump monitoring system, but can be implemented in combination with such systems with favor- able results and advantages. 210 330 240 . 300 1-1 kin ei ,tD © oc ,—, 270 Fig. 6 IN ,—, © ei 0 WO 2017/180625 Al MIDEDIMOMOIDERDEEMOMOVEMOIEDIOUDEMOVOIS Published: — with international search report (Art. 21(3))