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. 23, 1997
Filed:
Feb. 16, 1996
Alexander J Wildman, Eugene, OR (US);
Other;
Abstract
A lingual orthodontic bracket includes a body having a three-sided archwire slot, a closure member slot, and a hinged closure member pivotally and pivotable across the archwire slot and into a closed position in the closure member slot. The closure member includes a cam shaped portion extending across the archwire to retain it in the archwire slot under shear. The cam portion is convexly shaped to force the archwire to seat in the slot as the closure member is rotated toward the closed position, and has a neutral to over-center or negative camming action upon closure to retain the closure member in the closed position. The closure member includes a protrusion that wedges into the closure member slot in the closed position, The bracket includes two oppositely directed wings formed respectively on the body and the closure member for receiving a ligature or O-ring.