US 11,740,589 B2
Multi-cam, continuous-drive escapement mechanism
Werner Janer, Bridgeport, CT (US); and Weiru Shao, Auburndale, MA (US)
Appl. No. 17/259,595
Filed by Werner Janer, Bridgeport, CT (US); and Weiru Shao, Auburndale, MA (US)
PCT Filed Jul. 18, 2019, PCT No. PCT/US2019/042475
§ 371(c)(1), (2) Date Jan. 12, 2021,
PCT Pub. No. WO2020/018838, PCT Pub. Date Jan. 23, 2020.
Claims priority of provisional application 62/700,604, filed on Jul. 19, 2018.
Prior Publication US 2021/0318659 A1, Oct. 14, 2021
Int. Cl. G04B 15/08 (2006.01); G04B 13/02 (2006.01); G04B 15/14 (2006.01)
CPC G04B 15/08 (2013.01) [G04B 13/02 (2013.01); G04B 15/14 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An escapement mechanism comprising:
a dual-forked lever having a pivot suitable for movement of the lever between a first pivot limit and a second pivot limit, and at least two rounded follower elements spaced from the pivot and spaced at a first predetermined distance from each other, with at least one follower element mounted on each fork of the lever and each follower element lacking a locking face, and
at least one escape wheel having an outer periphery defining at least a first plurality of cam elements, each cam element defining a leading cam surface suitable to slidably contact and drive the rounded follower elements, and each cam element lacks a locking surface where contact is made with the follower elements;
wherein the first plurality of cam elements slidably contacts and drives the at least one follower element on one of the two forks of the lever, and further including a second escape wheel, disposed coaxially with the first escape wheel, wherein the second escape wheel defines a second plurality of cam elements, each cam element of the second plurality of cam elements defining a leading cam surface suitable to slidably contact and drive the at least one rounded follower element on the other of the two forks, and each cam element lacks a locking surface where contact is made with the follower elements.