Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8091244 | Holding mechanism for use with an ophthalmic tracer, and method The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releaseably securing a lens mount of an eyeglass frame, and an actuator operatively associated ... | 01/10/2012 |
| 7970487 | Method of calibrating an ophthalmic processing device, machine programmed therefor, and computer program The present invention is directed to a method of calibrating drill depth of an ophthalmic processing device. A number of drill cycles are selected for drilling an expected number of holes in a lens blank. The selected number of drill cycles is performed. The drill d... | 06/28/2011 |
| 7874079 | Holding mechanism for use with an ophthalmic tracer, and method The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releasably securing a lens mount of an eyeglass frame, and an actuator operatively associated w... | 01/25/2011 |
| 7643899 | Method of beveling an ophthalmic lens blank, machine programmed therefor, and computer program The present invention is directed to a machine programmed to edge an ophthalmic lens blank. The machine includes an edger device for forming a bevel in a peripheral edge of the lens blank, a central processing unit operably associated with the edger device for contr... | 01/05/2010 |
| D606101 | Blocker for eyeglass lenses | 12/15/2009 |
| 7571526 | Multi-blade router tool, edger with multi-blade router tool, and method of edging eyeglass lenses The present invention relates to a router tool for edging the peripheral edge of eyeglass lenses. The tool comprises a longitudinally extending body rotatable on the axis thereof. A first blade extends axially and radially from the body, and has a first cutting port... | 08/11/2009 |
| 7544038 | Tray stacking and unstacking corner grippers and handler The present invention is directed to a tray handler for stacking and de-stacking ophthalmic prescription trays. The tray handler includes a plurality of spaced clamp assemblies defining a stack area along a conveyor, a lift plate, and first and second actuators. The... | 06/09/2009 |
