G - Physics – 02 – C
Patent
G - Physics
02
C
G02C 5/00 (2006.01) B21D 31/06 (2006.01) B21J 1/00 (2006.01) B21K 23/00 (2006.01) C22C 19/03 (2006.01) C22C 27/02 (2006.01) C22C 30/00 (2006.01) C22C 38/08 (2006.01) C22C 38/14 (2006.01)
Patent
CA 2337474
Spectacle frames having one or more components such as a bridge, nose rests and ear pieces of martensitic NiTi, NiTi nobium, NiTi iron alloy made by means of plastic deformation starting from a 20 % work hardening raised by hammering up to 50 % so that the final section of the material so treated maintains, within a range of temperatures from -50 °C to +70 °C, sufficient elasticity and flexibility for adaptating the frames to the different facial forms of users.
L'invention concerne des montures de lunettes composées de diverses parties telles que pont, plaquettes, branches, réalisées en alliages NiTi martensitique, NiTi nobium, fer NiTi et obtenues par déformation plastique commençant par un écrouissage à 20 % et allant jusqu'à 50 % par martelage. Ainsi, la section finale de la matière traitée selon ce procédé conserve une élasticité et une souplesse suffisante pour adapter les montures à des formes de visage différentes à des températures comprises entre 50 DEG C et +70 DEG C.
Marks & Clerk
Optigen S.r.l.
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