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1. (WO2014206582) TIMEPIECE SPRING MADE OF AUSTENITIC STAINLESS STEEL
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/206582 International Application No.: PCT/EP2014/055858
Publication Date: 31.12.2014 International Filing Date: 24.03.2014
IPC:
G04B 1/14 (2006.01) ,F16F 1/02 (2006.01) ,C22C 38/00 (2006.01) ,C22C 38/18 (2006.01) ,C22C 38/38 (2006.01)
G PHYSICS
04
HOROLOGY
B
MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS
1
Driving mechanisms
10
with mainspring
14
Mainsprings; Bridles therefor
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
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1
Springs
02
made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
18
containing chromium
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
18
containing chromium
38
with more than 1.5% by weight of manganese
Applicants:
NIVAROX-FAR S.A. [CH/CH]; Avenue du Collège 10 CH-2400 Le Locle, CH
Inventors:
CHARBON, Christian; CH
PLANKERT, Guido; CH
Agent:
ICB INGÉNIEURS CONSEILS EN BREVETS SA; Fbg de l'Hôpital 3 CH-2001 Neuchâtel, CH
Priority Data:
01182/1327.06.2013CH
Title (EN) TIMEPIECE SPRING MADE OF AUSTENITIC STAINLESS STEEL
(FR) RESSORT D'HORLOGERIE EN ACIER INOXYDABLE AUSTENITIQUE
Abstract:
(EN) The invention relates to a timepiece spring (1) made of austenitic stainless alloy, steel comprising a base consisting of iron and chromium. The thickness thereof is smaller than 0.20 mm. Said spring comprises by weight: chromium having a minimum value of 15% and a maximum value of 25 %; manganese having a minimum value of 5% and a maximum value of 25 %; nitrogen having a minimum value of 0.10% and a maximum value of 0.90%; carbon having a minimum value of 0.10% and a maximum value of 1.00 %; the total of the contents by weight of carbon and of nitrogen as a proportion of the total is 0.40% to 1.50%; the (C/N) ratio of the content by weight of carbon as a proportion of the total relative to that of nitrogen is 0.125 to 0.550; impurities and added metals outside of iron having a minimum value of 0% and a maximum value of 12.0%; and iron having a value rounding out the 100 %. The invention is used with a barrel spring.
(FR) Ressort (1) d'horlogerie en alliage d'acier inoxydable austénitique comportant une base constituée de fer et de chrome. Son épaisseur est inférieure à 0,20 mm. Il comporte en masse: - chrome: valeur mini 15%, valeur maxi 25 %; - manganèse: valeur mini 5%, valeur maxi 25 %; - azote: valeur mini 0,10%, valeur maxi 0.90%; - carbone: valeur mini 0.10%, valeur maxi 1,00 %; - le total des teneurs en masse du carbone et de l'azote en proportion du total compris entre 0,40% et 1,50%; - le rapport (C/N) de la teneur en masse du carbone en proportion du total par rapport à celle de l'azote compris entre 0,125 et 0,550; - impuretés et métaux d'apport à l'exception du fer: valeur mini 0%, valeur maxi 12,0%; - fer: le complément à 100 %. Application à un ressort de barillet.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, 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, 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, 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: French (FR)
Filing Language: French (FR)