The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 1995
Filed:
Nov. 18, 1993
Applicant:
Inventor:
Christian Joncour, Saint Maurice, FR;
Assignee:
Essilor International Cie Generale d'Optique, Creteil Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
451 42 ; 451 43 ; 451 54 ; 451240 ;
Abstract
A method of checking that a lens suits an eyeglass frame uses the lens grinding machine itself. The lens to be ground is mounted on a support shaft and moved into contact with the grinding wheel with the latter stationary. The support shaft is rotated stepwise until the lens to be ground has rotated through one complete turn. A check is carried out to determine whether a feeler associated with a template is operated thereby during such rotation. The invention finds an application in grinding machines used to trim eyeglass lenses.