Device for blocking an ophthalmic lens
US9221145B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2012 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Oct 30, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A blocking device (1) includes: a structure (10); a manipulation arm (30) mounted on the structure to be movable between two extreme positions and including gripper element (33) for gripping a blocking accessory for placing on an ophthalmic lens; guide element (50) for guiding the manipulation arm between its two extreme positions along a path that presents a curved portion and an adjacent rectilinear portion; and drive element (70) for changing the position of the manipulation arm and including a gearwheel that meshes with a rack (40). The rack forms part of the manipulation arm and presents a circularly arcuate portion (41) enabling the manipulation arm to be driven along the curved portion of its path, and a rectilinear portion (42) enabling the manipulation arm to be driven along the rectilinear portion of its path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.