Thermocompensated spring and manufacturing method

专利名称：Thermocompensated spring and

manufacturing method thereof

发明人：CHARBON, CHRISTIAN,VERARDO,

MARCO,QUINTINA, JOSE

申请号：EP10165641.1申请日：20100611公开号：EP2264553A2公开日：20101222

专利附图：

摘要：The spring has a section comprising a metallic material e.g. ferro manganesealloy or nickel iron alloy i.e. Invar(RTM: Nickel steel alloy). The section has a face provided

with an external layer that comprises another metallic material i.e. stainless steel.Thermoelastic coefficient of the latter metallic material varies in direction opposite tothat of the former metallic material, where one of the metallic materials is paramagnetic.The external layer runs over the entire length of the spring. An independent claim is alsoincluded for a method for manufacturing a spring for a sprung balance.

申请人：NIVAROX-FAR S.A.

地址：Avenue du Collège 10 2400 Le Locle CH

国籍：CH

代理机构：Couillard, Yann Luc Raymond

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