Ophthalmic lens grinding machine
US5549503A · kind A · utility
6Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Jan 7, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B9/148
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine for grinding ophthalmic lenses includes a motor driven grinding wheel, a swinging head frame for holding ophthalmic lens and rotating the lenses into and out of contact with the grinding wheel, and a veneer positively connected to the swinging head frame by a positive linkage to prevent separation of the swinging head frame from the controlling veneer and thereby avoid the introduction of errors into the position of the lens relative to the control position of the veneer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.