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1. (WO2018039217) LOW TORQUE SPRINKLER FITTING AND METHOD OF MANUFACTURE
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Pub. No.: WO/2018/039217 International Application No.: PCT/US2017/047994
Publication Date: 01.03.2018 International Filing Date: 22.08.2017
IPC:
A62C 31/02 (2006.01) ,F16L 39/00 (2006.01) ,F16L 19/00 (2006.01) ,F16J 15/02 (2006.01)
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
C
FIRE-FIGHTING
31
Delivery of fire-extinguishing material
02
Nozzles specially adapted for fire-extinguishing
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
39
Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
19
Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
02
between relatively-stationary surfaces
Applicants:
NIBCO INC. [US/US]; 1516 Middlebury Street P.O. Box 1167 Elkhart, Indiana 46515-1167, US
Inventors:
JACKSON, Eldon Douglas; US
Agent:
CALLAGHAN, Terry S.; US
Priority Data:
15/664,31131.07.2017US
62/378,33823.08.2016US
Title (EN) LOW TORQUE SPRINKLER FITTING AND METHOD OF MANUFACTURE
(FR) RACCORD D'ARROSEUR À FAIBLE COUPLE ET PROCÉDÉ DE FABRICATION
Abstract:
(EN) A brass fitting is in-molded in a plastic pipe fitting, which is coupled to a water supply line in a conventional matter. The brass insert receives a tapered seal with sealing surfaces that seat against the brass insert and a sprinkler head to form a sealed connection. The seal includes a tapered passageway for compression when tightening, as well as an external taper to allow the seal to conform to the socket formed by the plastic pipe fitting and brass insert. Also, a manufacturing method includes in-molding a brass insert within a plastic fitting using an O-ring which interfaces between the brass insert and surrounding molded fitting to seal the brass insert to the fitting. In one embodiment, the seal is used in a polymeric fitting without a brass insert.
(FR) L'invention concerne un raccord en laiton moulé dans un raccord de tuyau en plastique, qui est couplé à une ligne d'alimentation en eau d'une matière classique. L'insert en laiton reçoit un joint conique ayant des surfaces d'étanchéité qui viennent en appui contre l'insert en laiton et une tête d'arroseur pour former une connexion étanche. Le joint d'étanchéité comprend un passage conique conçu pour une compression lors du serrage, ainsi qu'une conicité externe pour permettre au joint d'étanchéité de s'adapter à la forme de la liaison formée par le raccord de tuyau en plastique et l'insert en laiton. L'invention concerne également un procédé de fabrication qui comprend le moulage d'un insert en laiton à l'intérieur d'un raccord en plastique à l'aide d'un joint torique qui forme une interface entre l'insert en laiton et le raccord moulé environnant pour sceller l'insert en laiton au raccord. Selon un mode de réalisation, le joint d'étanchéité est utilisé dans un raccord polymère sans insert en laiton.
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Designated States: 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)