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:
Sep. 08, 1998
Filed:
Jun. 24, 1996
Applicant:
Inventors:
Laurent Guillermin, Paris, FR;
Henri Hougas, Ozoir la Ferriere, FR;
Patrick Horel, Levallois Perret, FR;
Assignee:
Essilor International Compagnie Generale d'Optique, Charenton le Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
33502 ; 33200 ;
Abstract
A calibration gage for calibrating a device for reading off the contours of eyeglass frames is designed to be fitted to the contour reading off device to be calibrated in place of an eyeglass frame. It includes a plate with at least two ribs projecting from it. The ribs are generally parallel to each other in a first direction and spaced from each other in a second direction. By reading off the known dimensions between their inside and outside flanks, it is possible to determine some parameters of the contour reading off device.