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:
Feb. 04, 1986
Filed:
Oct. 03, 1984
Applicant:
Inventor:
Bernard Feurer, Montgiscard, FR;
Assignee:
Alcon Pharmaceuticals Limited, Cham, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; H05B / ;
U.S. Cl.
CPC ...
425174 ; 4251742 ; 4251744 ; 425808 ; 4251 / ; 425446 ; 219 / ; 264 25 ; 264-14 ;
Abstract
The invention concerns a method and an apparatus for manufacturing a contact lens, through molding within water-tight molds. The polymerization of lenses is insured by arranging a number of molds within one or several sealed metallic chambers (9) constituting a resonant cavity of a unique mode for an ultra high frequency wave; these molds are positioned in an area of the cavity where the electromagnetic field approximately of ultra high frequency waves is homogeneous, and are distributed so that the amounts of basic composition to be polymerized act as a load fitted to the inside of said cavity.