Tool for forming a cartridge piston and method

(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date W O 2017/023959 Al 9 February 2017 (09.02.2017) WIPOIPCT (51) International Patent Classification: DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, B05B 11/02 (2006.01) B29C 45/26 (2006.01) HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, (21) InternationalApplicationNumber: MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PCT/US2016/045224 PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, (22) International Filing Date: SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 3 August 2016 (03.08.2016) TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (26) Publication Language: English GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (30) Priority Data: TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, 2015903128 5 August 2015 (05.08.2015) AU TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 2016210598 1 August 2016 (01.08.2016) AU DK, EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (71) Applicant: ILLINOIS TOOL WORKS INC. [US/US]; SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, 155 Harlem Avenue, Glenview, Illinois 60025 (US). GW, KM, ML, MR, NE, SN, TD, TG). (72) Inventor: MURDOCH, Thomas; 279 Tuckokcowie Road, Declarations under Rule 4.17: Warooka, South Australia 5577 (AU). - as to applicant's entitlement to applyfor and be granted a (74) Agent: HAUPTMAN, Benjamin J.; Hauptman Ham, patent (Rule 4.17(ii)) LLP, 2318 Mill Road, Suite 1400, Alexandria, Virginia - as to the applicant's entitlement to claim the priority of the 22314 (US). earlier application (Rule 4.17(iii)) (81) Designated States (unless otherwise indicated, for every Published kind of national protection available) AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, - with international search report (Art. 21(3)) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (54) Title: INJECTION MOULDING TOOL AND METHOD -58 - 60 52b 52a 56b 56a Figure 7 (57) Abstract: A piston (11) for use in a cartridge for dispensing multi-part fluids, the piston (11) being injection moulded and hav ing integrally formed circumfere