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. 07, 1976
Filed:
Nov. 26, 1974
Applicant:
Inventor:
Bruno Bettiol, Quincy-Voisins, FR;
Assignee:
Essilor International 'Cie Generale D'Optique', Joinville-le-Pont, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
7456 / ; 7456 / ;
Abstract
The invention relates to a variable-profile cam of the kind comprising a cam-surface formed by one of the longitudinal faces of a thin strip extending freely between at least two supports, of which at least one is adjustable transversely in position, in which the thin strip is made of an elastically-deformable material, and the transverse moment of inertia of the strip can vary between the two supports, for example by variation of the width or the thickness of the strip. The invention is particularly applicable to cams for reproducing machines for the production of aspherical surfaces of moulds for contact lenses.