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:
Mar. 23, 2004
Filed:
Jun. 06, 2002
Aichi Steel Corporation, Tokai, JP;
Abstract
A dental attachment is disclosed which provides an improved connection force and fitting between an implant and a keeper. A keeper has a main body with a attracted face, a screw part that is located at the back face, a conical tapered shaft, and a projecting ring part. The projecting ring part has an inclining inner face and an acute angle pointed end. An implant has a screw hole part, a conical tapered hole part which has about the same inclining angle of the tapered axle part, and an inclining end face. When the keeper and the implant are connected, the tapered shaft and the tapered hole part are fitted closely and at the same time, the inner face of the acute angle pointed end and the inclining end part are in contact and at least the acute angle pointed end of the projecting ring part is elastically transformed toward the diameter.