Lever escapement assembly for a timepiece movement
US11550262B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | May 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B15/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An escapement is disclosed which includes pallets, a roller and a pin fastened to the roller, intended to cooperate with one another. The pallets have no guard pin and include a pallet fork intended to cooperate with the pin and the roller and including first and second horns delimiting an entry of the pallet fork. The roller has an anti-overbanking wall in which a notch is formed, in a region adjacent to the pin. The pallets, the roller and the pin are conformed and dimensioned in such a manner that, in the service position, the anti-overbanking wall is able to define an abutment for the first and second horns, and each of the horns is able to penetrate to the interior of the notch exclusively when the pin is at least partly situated in the entry of the pallet fork.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.