US 12,481,247 B2
Timepiece movement escapement, return component for timepiece escapements, timepiece movement and timepiece comprising such a movement
Vincent Calabrese, Morges Vaud (CH)
Appl. No. 18/043,642
Filed by Vincent Calabrese, Morges Vaud (CH)
PCT Filed Aug. 10, 2021, PCT No. PCT/EP2021/072227
§ 371(c)(1), (2) Date Mar. 1, 2023,
PCT Pub. No. WO2022/048864, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 1090/20 (CH), filed on Sep. 3, 2020.
Prior Publication US 2023/0324851 A1, Oct. 12, 2023
Int. Cl. G04B 17/04 (2006.01); G04B 15/08 (2006.01); G04B 15/14 (2006.01); G04B 18/04 (2006.01)
CPC G04B 17/045 (2013.01) [G04B 15/08 (2013.01); G04B 15/14 (2013.01); G04B 18/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A clockwork movement escapement, comprising:
a balance wheel pivoting on an axis of rotation of the balance wheel;
an escape wheel;
a lever; and
a return member of the balance wheel, wherein the balance wheel is integral with a balance wheel pinion, the return member of the balance wheel includes
a rake provided with a toothed sector arranged to work together with the balance wheel pinion, the rake comprising an axis allowing its rotation between two extreme positions separated by a rest position,
a return mechanism comprising two springs arranged to press the rake towards its rest position, the springs comprising elastic blades arranged to store energy and to return energy to the rake and
only one of the elastic blades stores and returns energy at the same time.