US 12,226,870 B2
Application device and method to clean grinding surfaces in a machine for grinding ophthalmic lenses
Jean-Etienne Lepage, Charenton-le-Pont (FR); and Sebastien Pinault, Charenton-le-Pont (FR)
Assigned to Essilor International, Charenton-le-pont (FR)
Appl. No. 16/624,427
Filed by Essilor International, Charenton-le-Pont (FR)
PCT Filed Jun. 29, 2018, PCT No. PCT/EP2018/067677
§ 371(c)(1), (2) Date Dec. 19, 2019,
PCT Pub. No. WO2019/002591, PCT Pub. Date Jan. 3, 2019.
Claims priority of application No. 17305828 (EP), filed on Jun. 30, 2017.
Prior Publication US 2020/0130125 A1, Apr. 30, 2020
Int. Cl. B24B 13/00 (2006.01); B24B 9/14 (2006.01); G02C 7/02 (2006.01); B24B 53/007 (2006.01)
CPC B24B 13/0037 (2013.01) [B24B 9/146 (2013.01); G02C 7/022 (2013.01); B24B 53/007 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An application device (10) configured to clean a grinding surface (113) of a grinding wheel (112) when said grinding wheel is mounted in a machine (100) for grinding ophthalmic lenses and when the machine comprises at least:
the grinding wheel having the grinding surface (113) and being rotatably mounted in the machine around a first axis (118); and
gripping members (104, 106) configured to receive an ophthalmic lens; and
the application device comprising:
a central portion (12) having coupling means (14) shaped so as to cooperate with the gripping members so as to mount the application device in the grinding machine; and
a peripheral edge (16) and a disk made of felt, wherein the disk comprises an inside face configured to cooperate with the peripheral edge of the application device, so as to mount the disk on the central portion, and
an external face forming an application surface, so as to directly cooperate with the grinding surface of the grinding wheel so as to clean the grinding surface,
wherein the application device further comprises:
a tank (22) that comprises a peripheral border and is configured to contain a cleaning solution; and
delivering channels (30) that are arranged in the peripheral border of the tank and configured to guide the cleaning solution to the external face of the disk when a pressure is applied to the tank so as to squeeze the tank.