The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2024
Filed:
Oct. 24, 2019
Nivarox-far S.a., Le Locle, CH;
Nicola Giusto, Le Locle, CH;
Joseph Balossi, Villers-le-lac, FR;
Francois Fahrni, Le Locle, CH;
Davy Cretenet, La Chaux-de-Gilley, FR;
Nivarox-FAR S.A., Le Locle, CH;
Abstract
A method for measuring the torque of a balance spring, made, in particular, of micromachinable material. A gripper places the collet on an insertion guide on the vertex of a mock obelisk-shaped arbor for a first centring of the collet, this balance spring is allowed to slide under its own weight along the guide surmounting a frustoconical shank that completes the self-centring of the collet on the tool axis, and for holding this balance spring without stress on the shank, the mock arbor including a drive device cooperating with the inner contour of the collet for the relative driving in rotation thereof without slipping, a holding tool holds the outer coil of the balance spring, to measure the torque of the balance spring by rotating the main tool and/or the holding tool about the axis, without stressing the balance spring.