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:
Apr. 23, 2002
Filed:
Jan. 19, 2001
Andreas Holweg, Jühnde, DE;
Carsten Georg Köhler, Hasselroth-Niedermittlau, DE;
Egbert Kremer, Hanau, DE;
Degussa AG., , DE;
Abstract
A screwdriver for intra-oral implantation features a screwdriver shaft ( ), which, at one of its ends, is connected with a hand piece ( ) and at its other end, via an angular gear drive ( ), with a rotatable tool chuck ( ). The screwdriver shaft ( ) consists of shaft segments ( ) that can, at least partially, be moved in relation to each other and that can be tightened by means of a common longitudinal tightening device for the purpose of fixing them in their relative positions. A drive shaft consists, in the area of the shaft segments ( ) of individual shaft pieces that, in the connecting area of two shaft segments ( ), are connected via an angular gear for the purpose of torque transmission.