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| Number | Title | Issue Date |
| 8047705 | Anti-shock collet The collet, which can be made in a single piece and at the same time as the balance-spring, is formed by a plate (1) which includes an aperture (3) for attachment to a balance staff (5) and has an asymmetrical contour (9) which follows at... | 11/01/2011 |
| 7758237 | Spiral/collet assembly for a horological movement A balance spring-collet assembly for a timepiece movement comprises a collet (1) and a balance spring (3) attached at its inner end to the collet (1). The collet (1) is capable of being mounted onto a shaft (2). The external periph... | 07/20/2010 |
| 7229208 | Bi-material self-compensating balance-spring The balance-spring is formed by a first assembly, comprising the coils (3) and the outer curve (2), made in a first material such as Elinvar having an elastic torque that is insensitive or almost insensitive to elongation, temperature and magnetic fiel... | 06/12/2007 |
| 7213966 | Collet without deformation of the fixation radius of the balance-spring and manufacturing method of the same The collet is formed by a metal band (10) whose inner contour (11) delimits the recesses (11a, 11b, 11c) for driving the collet onto a balance staff (2) and whose outer contour (12) includes a fun... | 05/08/2007 |
| 7077562 | Watch hairspring and method for making same The invention relates mainly to a hairspring intended to equip the balance wheel of a mechanical timepiece. It is in the form of a spiraled rod (10) cut from an {001} single-crystal silicon plate. Its structure and its dimensions are calculated so as to minim... | 07/18/2006 |
| 7018092 | Spiral spring for time measuring device A spiral spring for use in connection with horology instruments is disclosed which includes a spiral spring and a collet which are produced in one piece without molecular discontinuity. ... | 03/28/2006 |
| 3956881 | Hairspring and collet assembly for timepieces A hairspring and collet assembly for timepieces in which the collet has a base having an opening and a stud integral from the base in a direction parallel to the axis of the opening. The hairspring comprises an inner turn ending in a bend. The stud occupi... | 05/18/1976 |
| 3934406 | Balance wheel assembly and method for manufacture thereof A balance wheel assembly includes a balance staff having a balance wheel hub, a saddle, a shoulder, a cylindrical portion to which the balance spring is attached, and a lower stem extending through a flange. The saddle and cylindrical portion are on the s... | 01/27/1976 |
