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:
Oct. 23, 2018
Filed:
Apr. 22, 2016
Heule Werkzeug Ag, Balgach, CH;
Harry Studer, Balgach, CH;
Heule Werkzeug AG, Balgach, CH;
Abstract
A combined drill and chamfer tool () for producing boreholes () in a workpiece () and for subsequently producing a chamfer () on at least one bore edge of the borehole (), comprising a drill bit (), which is secured in a rotationally fixed manner in a base body (), and at least one chamfering blade () arranged behind the drill bit () in the axial direction, said chamfering blade being mounted in a blade window () arranged in the drill shank () and spring-loaded so as to be displaceable transversely to the longitudinal axis of the combined tool (), wherein the drill body () comprising the drill bit () and the drill shank () is made of a solid hard metal material, and wherein a spring-loaded, displaceable control bolt () is located in a central longitudinal bore () of the solid hard metal drill, the front tip () of said bolt controlling the transverse displacement of the chamfering blade (), which is transversely displaceable within the blade window ().