Abrading – Precision device or process - or with condition responsive... – With indicating
Patent
1996-11-18
1997-11-04
Morgan, Eileen P.
Abrading
Precision device or process - or with condition responsive...
With indicating
451 11, 451 13, 451 43, 451240, 451255, B24B 4900
Patent
active
056832885
ABSTRACT:
A patternless edger apparatus is described which is mountable on mechanical pattern ophthalmic lens grinders. The apparatus has a mounting yoke adapted for mounting the apparatus in the place of the mechanical patterns to control the edge grinding of a lens blank. The mounting yoke includes a rotative spindle mount to interlock with the grinder pattern chuck and a mounting shaft releasably receivable in the spring clip bore of such lens grinders. A stored lens pattern and signalling from a grinder spindle rotational angle transducer are acted on by a microprocessor to control a motorized cam operative on the grinder pattern reaction surface to control the grinder to grind a lens blank to a perimeter shape corresponding to the stored lens pattern.
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patent: 5398460 (1995-03-01), Joncour
patent: 5605498 (1997-02-01), Nauche
Elision Technology Inc.
Morgan Eileen P.
LandOfFree
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