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:
May. 20, 1997
Filed:
Apr. 29, 1994
Applicant:
Inventors:
Robert G Frey, White Bear Lake, MN (US);
Timothy D Fletcher, White Bear Lake, MN (US);
Assignee:
Minnesota Mining and Manufacturing Co., St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 78 ; 385 60 ; 385 72 ; 385 85 ;
Abstract
A ceramic optical fiber ferrule is constructed from CaTiO.sub.3 (calcium titanate) or CeO.sub.2 --ZrO.sub.2 (ceria-zirconia). The ferrule is PC-radiused and thus includes a first, convex end having a predetermined radius of curvature, a second end, and an axial bore which joins the first and second ends. An optical fiber can be fixedly positioned within the bore and a terminal end of the optical fiber can be created by standard polishing or grinding techniques which is coplanar with the first, convex end of the ferrule.