Patent SG-11201408399Y-A (SG)
Title: Polymer bellows spring
Inventor: NGUYEN HY B
IPC: F16K15/02
Filed: 2013-06-25
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 3 January 2014 (03.01.2014) WIPOIPCT (10) International Publication Number WO 2014/004511 A1 (51) International Patent Classification: F16K15/02 (2006.01) F16K15/12 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/047621 25 June 2013 (25.06.2013) English English (30) Priority Data: 61/665,630 28 June 2012 (28.06.2012) US (71) Applicant (for all designated States except US): SAINT- GOBAIN PERFORMANCE PLASTICS CORPORA­ TION [US/US]; 1199 South Chillicothe Road, Aurora, Ohio 44202 (US). (72) Inventors: NGUYEN, Hy, B.; 1485 Winston Court, Up­ land, California 91786 (US). DINH, Thuan An; 14681 Westfall Road, Tustin, California 92780 (US). AREL­ LANO, Carlos, E.; 13521 Partridge Street, Garden Grove, California 92843 (US). (74) Agents: ABEL LAW GROUP, LLP et al.; 8911 N. Capit­ al of Texas Hwy, Bldg 4, Suite 4200, Austin, Texas 78759 (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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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, [Continued on next page] (54) Title: POLYMER BELLOWS SPRING 140 165 -100 130 ir, o o FIG. 1 o CJ o £ [Continued on next page] wo 2014/004511 AI III llll IIII III III Hill III III! III! III III I lllll ll llll 111 lllllll llll 111 llll GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, 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, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) (57) Abstract: A spring for use in check valve formed from a is a single piece of a polymeric material and includes proximal a end, distal end, a and a body positioned between the proximal end and the distal end. The body includes wall, proximal a a open­ ing on the wall and a distal opening on the wall, and a bellows between the proximal opening and the distal opening. Further in­ cluded is a process of forming the spring.