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:
Dec. 07, 1999
Filed:
Nov. 19, 1997
Kenneth L Smith, Porum, OK (US);
Todd R Strope, Tulsa, OK (US);
Coburn Optical Industries, Inc., Tulsa, OK (US);
Abstract
A process and machine for cleaning ophthalmic lenses and blocks heats a washing solution in a wash tank and a rinsing solution in a rinse tank to approximately l40.degree. F. Ultrasonic wave agitation is then initiated in the solutions. A set of lenses or blocks is immersed in the ultrasonically agitated washing solution for approximately one-half the predetermined time of the wash cycle. Mechanical agitation of the immersed set of lenses or blocks is initiated in the ultrasonically agitated washing solution for the remainder of the predetermined time of the wash cycle. The set of lenses or blocks is then raised above the washing solution for a predetermined drip period. The set of lenses or blocks is then immersed in the ultrasonically agitated rinsing solution for approximately one-half the predetermined time of the rinse cycle. Mechanical agitation of the immersed set of lenses or blocks is initiated in the ultrasonically agitated rinsing solution for the remainder of the predetermined time of the rinse cycle. The set of lenses or blocks is then raised above the rinsing solution for a predetermined drip period.