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, 1992
Filed:
Sep. 11, 1989
Applicant:
Inventor:
Joseph Tusinski, Muskogee, OK (US);
Assignee:
Coburn Optical Industries, Muskogee, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51 55 ; 5112 / ;
Abstract
A fining apparatus to finish the surface of an ophthalmic toric lens including a frame, a compound arcuate tool, a lens holding assembly, a motor for driving the tool in an orbital motion and the operative length of the tool is defined by the equation L=1/k.theta. for a half angle of orbit excursion .theta. between 0.25 and 2.25 degrees.