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:
Jul. 13, 1993
Filed:
Aug. 24, 1992
Stefan Lind, Tumlingen, DE;
Fischerwerke Artur Fischer GmbH & Co. KG., Tumlingen, DE;
Abstract
A device for producing drilled holes with an undercut, especially in facing panels, has a drilling machine, a drilling tool, an adaptor receiving the drilling tool and connected with the drilling machine so as to transfer torque, a holder, a bearing bush secured in the holder and provided with a rotatable and swivelable guide sleeve, a wobble plate secured on the drilling machine and the guide sleeve, a plurality of cylinders arranged on the holder concentrically about a center line of the guide sleeve and engaging the wobble plate. The cylinders are actuated and controlled in succession to produce a wobbling movement for reaming out an undercut in a drilled hole.