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. 24, 1981
Filed:
Apr. 16, 1979
Jean-Francois Cailloux, Le Raincy, FR;
Essilor International 'Cie Generale d'Optique', Creteil, FR;
Abstract
Apparatus for machining, polishing and/or smoothing workpieces having curved surfaces such as optical or ophthalmic lenses. A bearing head maintains a tool against a workpiece. Pressure is applied by a pneumatic piston and cylinder unit for establishing contact pressure between the workpiece and the tool. An eccentric drive mechanism including a compound table generates relative displacement between the workpiece and the tool. The pneumatic piston and cylinder unit actually forms part of the tool holder spindle. The cylinder or piston rod of the unit is provided with a tool holder block mounting the tool and the other of the piston rod or cylinder is attached to the drive mechanism. The bearing head has a freely rotating position and a locked position preventing rotation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile