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:
Aug. 12, 2008
Filed:
May. 21, 2007
Stefan Scherbarth, Neuss, DE;
Stefan Scherbarth, Neuss, DE;
Sandvik Intellectual Property AB, Sandviken, SE;
Abstract
A cutting bit (), in particular for face milling cutters, having an upper and a lower surface () which are connected by circumferential edge surfaces (), wherein the cutting bit in plan view on to the upper surface () is of an approximately octagonal basic shape with alternately small and large corner angles, wherein formed between the respective corners () at the transition of the circumferential surfaces () to the upper and/or lower surface () are respective cutting edges () of which a part () in a top view appear as in a slightly broken or curved over a relatively smaller radius for use as roughing cutting edges and another part extends between adjacent corners () straight or with a relatively larger radius for use as finishing cutting edges (). In order to provide a cutting bit having the afore mentioned features, which may also be used as wide finishing cutter, but which nonetheless has at least two and preferably at least four finishing cutting edges which can be used for either direction of rotation, there is suggested that in the top view perpendicularly onto the upper surface the cutting bit is of a symmetrical configuration only with respect to a rotation by 180° but not with respect to a rotation by 90°.