Patent SG-11201901267W-A (SG)
Title: Pressure regulating valve
Inventor: BARNES THOMAS HEINRICH
IPC: A61M16/20
Filed: 2017-08-16
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property MD 1101111 0 DOI 0I0 11111 01 100011111011 11111011 MOH OEN Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2018/033863 Al 22 February 2018 (22.02.2018) WIP0 I PCT (51) International Patent Classification: (74) Agent: AJ PARK; Level 22, State Insurance Tower, 1 A61M 16/20 (2006.01) Willis Street, 6011 (NZ). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/IB2017/054973 kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 16 August 2017 (16.08.2017) 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, (25) Filing Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (26) Publication Language: English 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, (30) Priority Data: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 62/375,831 16 August 2016 (16.08.2016) US SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 62/399,643 26 September 2016 (26.09.2016) US TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. 62/485,846 14 Apri12017 (14.04.2017) US (84) Designated States (unless otherwise indicated, for every (71) Applicant: FISHER & PAYKEL HEALTHCARE kind of regional protection available): ARIPO (BW, GH, LIMITED [NZ/NZ]; 15 Maurice Paykel Place, East Tama- GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, ki, Auckland, 2013 (NZ). UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (72) Inventors: BARNES, Thomas Heinrich; 15 Mau EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, rice Paykel Place, East Tamaki, Auckland, 2013 (NZ). MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, MASSEY, Shane Terry; 15 Maurice Paykel Place, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, East Tamaki, Auckland, 2013 (NZ). EDWARDS, Tay- KM, ML, MR, NE, SN, TD, TG). for James; 15 Maurice Paykel Place, East Tamaki, Auck- land, 2013 (NZ). KAT, Arjen David; 15 Maurice Paykel Published: Place, East Tamaki, Auckland, 2013 (NZ). GORDON, — James Alexander; 15 Maurice Paykel Place, East Tama- with international search report (Art. 21(3)) ki, Auckland, 2013 (NZ). NELSON, Grant Leigh; 15 Maurice Paykel Place, East Tamaki, Auckland, 2013 (NZ). CORAZZA, Carsten Ma On Wong; 15 Maurice Paykel Place, East Tamaki, Auckland, 2013 (NZ). (54) Title: PRESSURE REGULATING VALVE 1c7 112 J 1 o0 • 10 104 FIGURE 12A .,,,._,... _ io ....,„ '-..f D 104a 1 102 r?- 103 10 1-1 M .4 =.] — '•.1 --- --108 101 GC M M © (57) : A pressure regulating or pressure relief device comprises an inlet and an outlet chamber with an outlet. The inlet is in 00 .---- fluid communication with the outlet chamber. A valve seat is located between the inlet and the outlet. A valve member is biased to seal Il against the valve seat, and displaces from the valve seat by an inlet pressure at the inlet increasing above a pressure threshold to allow a flow of gases from the inlet to the outlet via the outlet chamber. The flow of gases through the outlet causes an outlet pressure in the el outlet chamber to act on the valve member together with the inlet pressure to displace the valve member from the valve seat.